Dse8620 operators-manual

DSE8620 Operating Manual Issue 1
+
DEEP SEA ELECTRONICS PLC
DSE8620 Control Module Operating
Manual
Document number 057-142

DSE Model 8620 AMF Controller Operators Manual
2
DEEP SEA ELECTRONICS PLC
Highfield House
Hunmanby
North Yorkshire
YO14 0PH
ENGLAND
Sales Tel: +44 (0) 1723 890099
Sales Fax: +44 (0) 1723 893303
E-mail : sales@Deepseaplc.com
Website : www.deepseaplc.com
DSE8620 Automatic Mains Failure (AMF) control Module.
© Deep Sea Electronics Plc
All rights reserved. No part of this publication may be reproduced in any material form (including
photocopying or storing in any medium by electronic means or other) without the written permission of
the copyright holder except in accordance with the provisions of the Copyright, Designs and Patents
Act 1988.
Applications for the copyright holder’s written permission to reproduce any part of this publication
should be addressed to Deep Sea Electronics Plc at the address above.
The DSE logo is a UK registered trademarks of Deep Sea Electronics PLC.
Any reference to trademarked product names used within this publication is owned by their respective
companies.
Deep Sea Electronics Plc reserves the right to change the contents of this document without prior
notice.
Amendments List
Issue Comments Minimum
Module version
required
Minimum
Configuration Suite
Version required
1 Initial release V4.3.35 2011.10v1.0.7
Typeface: The typeface used in this document is Arial. Care should be taken not to mistake the upper case letter I with the numeral 1. The
numeral 1 has a top serif to avoid this confusion.
Clarification of notation used within this publication.
NOTE:
Highlights an essential element of a procedure to ensure correctness.
CAUTION!
Indicates a procedure or practice, which, if not strictly observed, could result in
damage or destruction of equipment.
WARNING!
Indicates a procedure or practice, which could result in injury to personnel or loss
of life if not followed correctly.

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TABLE OF CONTENTS
Section Page
1 BIBLIOGRAPHY ...........................................................................................7
1.1 INSTALLATION INSTRUCTIONS ................................................................................. 7
1.2 TRAINING GUIDES ..................................................................................................... 7
1.3 MANUALS .................................................................................................................. 7
2 INTRODUCTION ...........................................................................................8
3 SPECIFICATIONS.........................................................................................9
3.1 PART NUMBERING .................................................................................................... 9
3.1.1 SHORT NAMES .................................................................................................... 9
3.2 TERMINAL SPECIFICATION ..................................................................................... 10
3.3 POWER SUPPLY REQUIREMENTS .......................................................................... 10
3.4 GENERATOR VOLTAGE / FREQUENCY SENSING ................................................... 10
3.5 GENERATOR CURRENT SENSING........................................................................... 11
3.5.1 VA RATING OF THE CTS ................................................................................... 11
3.5.2 CT POLARITY .................................................................................................... 12
3.5.3 CT PHASING ...................................................................................................... 12
3.5.4 CT CLASS.......................................................................................................... 12
3.6 INPUTS .................................................................................................................... 13
3.6.1 DIGITAL INPUTS ................................................................................................ 13
3.6.1 ANALOGUE INPUTS ........................................................................................... 13
3.6.2 CHARGE FAIL INPUT ......................................................................................... 14
3.6.3 MAGNETIC PICKUP ........................................................................................... 14
3.7 OUTPUTS ................................................................................................................ 15
3.7.1 OUTPUTS A & B ................................................................................................. 15
3.7.2 CONFIGURABLE OUTPUTS C & D (LOAD SWITCHING) ...................................... 15
3.7.1 OUTPUTS E,F,G,H, I ,J & K ................................................................................ 16
3.8 COMMUNICATION PORTS ....................................................................................... 17
3.9 COMMUNICATION PORT USAGE ............................................................................ 17
3.9.1 CAN INTERFACE............................................................................................... 17
3.9.2 USB CONNECTION ............................................................................................ 18
3.9.3 USB HOST-MASTER (USB DRIVE CONNECTION) ............................................... 18
3.9.4 RS232................................................................................................................ 19
3.9.5 RS485................................................................................................................ 21
3.9.6 ETHERNET ........................................................................................................ 22
3.10 DSENET® FOR EXPANSION MODULES............................................................... 28
3.10.1 DSENET® USED FOR MODBUS ENGINE CONNECTION ..................................... 28
3.11 SOUNDER............................................................................................................. 29
3.11.1 ADDING AN EXTERNAL SOUNDER TO THE APPLICATION ................................. 29
3.12 ACCUMULATED INSTRUMENTATION ................................................................... 29
3.13 DIMENSIONS AND MOUNTING ............................................................................. 30
3.13.1 DIMENSIONS ..................................................................................................... 30
3.13.2 FIXING CLIPS .................................................................................................... 31
3.13.3 CABLE TIE FIXING POINTS................................................................................ 32
3.13.4 SILICON SEALING GASKET ............................................................................... 32
3.14 APPLICABLE STANDARDS ................................................................................... 33
3.14.1 ENCLOSURE CLASSIFICATIONS ....................................................................... 34
IP CLASSIFICATIONS .................................................................................................. 34
3.14.2 NEMA CLASSIFICATIONS .................................................................................. 35
4 INSTALLATION .......................................................................................... 36

4.1 TERMINAL DESCRIPTION ........................................................................................ 36
4.1.1 DC SUPPLY, FUEL AND START OUTPUTS, OUTPUTS E-J .................................. 37
4.1.2 ANALOGUE SENSOR ......................................................................................... 38
4.1.3 MAGNETIC PICKUP, CAN AND EXPANSION ....................................................... 39
4.1.4 V1 LOAD SWITCHING AND GENERATOR VOLTAGE SENSING .......................... 40
4.1.5 V2 MAINS VOLTAGE SENSING ......................................................................... 40
4.1.6 GENERATOR CURRENT TRANSFORMERS ........................................................ 41
4.1.7 MAINS CURRENT TRANSFORMERS .................................................................. 41
4.1.8 CONFIGURABLE DIGITAL INPUTS ..................................................................... 43
4.1.9 PC CONFIGURATION INTERFACE CONNECTOR................................................ 43
4.1.10 RS485 CONNECTOR .......................................................................................... 44
4.1.11 RS232 CONNECTOR .......................................................................................... 44
4.2 TYPICAL WIRING DIAGRAMS ................................................................................... 45
4.2.1 3 PHASE, 4 WIRE WITH RESTRICTED EARTH FAULT PROTECTION .................. 46
4.3 ALTERNATIVE TOPOLOGIES .................................................................................. 47
4.3.1 3 PHASE, 4 WIRE WITHOUT EARTH FAULT PROTECTION ................................. 47
4.3.2 SINGLE PHASE WITH RESTRICTED EARTH FAULT............................................ 48
4.3.3 SINGLE PHASE WITHOUT EARTH FAULT........................................................... 48
4.3.4 2 PHASE (L1 & L2) 3 WIRE WITH RESTRICTED EARTH FAULT .......................... 49
4.3.5 2 PHASE (L1 & L2) 3 WIRE WITHOUT EARTH FAULT ......................................... 49
4.3.6 2 PHASE (L1 & L3) 3 WIRE WITH RESTRICTED EARTH FAULT .......................... 50
4.3.7 2 PHASE (L1 & L3) 3 WIRE WITHOUT EARTH FAULT MEASURING ..................... 50
4.3.8 3 PHASE 4 WIRE WITH UNRESTRICTED EARTH FAULT MEASURING ................ 51
4.3.9 EARTH SYSTEMS .............................................................................................. 51
4.4 TYPICAL ARRANGEMENT OF DSENET® ................................................................. 52
4.4.1 EARTH SYSTEMS .............................................................................................. 53
5 DESCRIPTION OF CONTROLS .................................................................. 54
5.1 DSE8620 AUTOMATIC MAINS FAILURE (AMF) CONTROL MODULE ........................ 54
5.2 VIEWING THE INSTRUMENT PAGES ....................................................................... 56
5.2.1 STATUS ............................................................................................................. 57
5.2.2 ENGINE ............................................................................................................. 58
5.2.3 GENERATOR ..................................................................................................... 59
5.2.4 MAINS ............................................................................................................... 59
5.2.1 RS232 SERIAL PORT ......................................................................................... 60
5.2.1 RS485 SERIAL PORT ......................................................................................... 63
5.2.2 ABOUT .............................................................................................................. 64
5.2.1 CAN ERROR MESSAGES................................................................................... 66
5.3 VIEWING THE EVENT LOG ...................................................................................... 67
5.4 USER CONFIGURABLE INDICATORS ....................................................................... 68
6 OPERATION ............................................................................................... 69
6.1 CONTROL ................................................................................................................ 69
6.2 CONTROL PUSH-BUTTONS .................................................................................... 70
6.3 DUMMY LOAD / LOAD SHEDDING CONTROL .......................................................... 72
6.4 STOP MODE ............................................................................................................ 73
6.4.1 ECU OVERRIDE ................................................................................................. 74
6.5 AUTOMATIC OPERATION ........................................................................................ 75
6.5.1 MAINS FAILURE................................................................................................. 75
6.5.1 ENGINE RUNNING.............................................................................................. 76
6.5.2 REMOTE START IN ISLAND MODE .................................................................... 77
6.5.3 REMOTE START ON LOAD ................................................................................ 79
6.6 MANUAL OPERATION .............................................................................................. 81
6.7 TEST OPERATION ................................................................................................... 83
7 PROTECTIONS ........................................................................................... 85
7.1 PROTECTIONS DISABLED ....................................................................................... 86
7.1.1 INDICATION / WARNING ALARMS...................................................................... 86
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7.1.2 SHUTDOWN / ELECTRICAL TRIP ALARMS......................................................... 86
7.1.3 CAN ALARMS .................................................................................................... 87
7.2 INDICATIONS ........................................................................................................... 88
7.3 WARNINGS .............................................................................................................. 89
7.4 HIGH CURRENT WARNING ALARM .......................................................................... 90
7.5 SHUTDOWNS........................................................................................................... 91
7.6 ELECTRICAL TRIPS ................................................................................................. 93
7.7 HIGH CURRENT SHUTDOWN / ELECTRICAL TRIP ALARM ...................................... 94
7.7.1 IMMEDIATE WARNING ...................................................................................... 94
7.7.2 IDMT ALARM ..................................................................................................... 94
7.8 EARTH FAULT SHUTDOWN / ELECTRICAL TRIP ALARM ........................................ 96
7.9 SHORT CIRCUIT ALARM .......................................................................................... 96
7.10 ROCOF / VECTOR SHIFT...................................................................................... 97
7.10.1 MAINS DECOUPLING TEST MODE .................................................................... 97
8 SCHEDULER .............................................................................................. 98
8.1.1 STOP MODE...................................................................................................... 98
8.1.2 MANUAL MODE ................................................................................................. 98
8.1.3 AUTO MODE...................................................................................................... 98
9 SYNCHROSCOPE OPERATION.................................................................. 99
10 COMMISSIONING .................................................................................. 100
10.1 COMMISSIONING SCREENS ............................................................................... 100
10.1.1 SCREEN 1 ....................................................................................................... 100
10.1.2 SCREEN 2 ....................................................................................................... 100
10.1.3 SCREEN 3 ....................................................................................................... 100
10.1.4 SCREEN 4 ....................................................................................................... 100
11 FRONT PANEL CONFIGURATION ........................................................ 101
11.1 ACCESSING THE MAIN FRONT PANEL CONFIGURATION EDITOR .................... 102
11.1.1 EDITING A PARAMETER .................................................................................. 103
11.2 ADJUSTABLE PARAMETERS.............................................................................. 104
11.3 ACCESSING THE ‘RUNNING’ CONFIGURATION EDITOR .................................... 105
11.3.1 EDITING A PARAMETER .................................................................................. 105
11.3.2 ADJUSTABLE PARAMETERS (RUNNING EDITOR) ............................................ 105
12 FAULT FINDING .................................................................................... 106
12.1.1 EARTH FAULT TRIPPING CURVES ................................................................... 107
12.1.2 SHORT CIRCUIT TRIPPING CURVES ............................................................... 108
12.2 COMMUNICATIONS OPTION .............................................................................. 109
12.2.1 DESCRIPTION ................................................................................................. 109
12.2.2 CONTROLLER TO PC (DIRECT) CONNECTION ................................................ 109
12.2.3 MODBUS ......................................................................................................... 110
12.3 IEEE C37.2 STANDARD ELECTRICAL POWER SYSTEM FUNCTION NUMBERS.. 110
13 COMMISSIONING .................................................................................. 113
13.1.1 PRE-COMMISSIONING .................................................................................... 113
14 FAULT FINDING .................................................................................... 115
15 DSE 4 STEPS TO SUCCESSFUL SYNCHRONISING ............................. 117
15.1 CONTROL .......................................................................................................... 117
15.2 METERING ......................................................................................................... 117
15.3 COMMUNICATIONS ............................................................................................ 117
15.4 SYNC CHECKS ................................................................................................... 117
16 MAINTENANCE, SPARES, REPAIR AND SERVICING .......................... 118
16.1 PURCHASING ADDITIONAL CONNECTOR PLUGS FROM DSE ........................... 118
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16.2 PURCHASING ADDITIONAL FIXING CLIPS FROM DSE........................................ 118
16.3 PURCHASING ADDITIONAL SEALING GASKET FROM DSE ................................ 118
16.4 DSENET EXPANSION MODULES ........................................................................ 119
16.5 ETHERNET (LAN) CONNECTION ........................................................................ 119
17 WARRANTY ........................................................................................... 120
18 DISPOSAL ............................................................................................. 120
18.1 WEEE (WASTE ELECTRICAL AND ELECTRONIC EQUIPMENT) .......................... 120
18.2 ROHS (RESTRICTION OF HAZARDOUS SUBSTANCES) ..................................... 120
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1 BIBLIOGRAPHY
This document refers to and is referred to by the following DSE publications which can be obtained
from the DSE website www.deepseaplc.com
1.1 INSTALLATION INSTRUCTIONS
Installation instructions are supplied with the product in the box and are intended as a ‘quick start’ guide
only.
DSE PART DESCRIPTION
053-129 DSE8620 Installation Instructions
053-032 DSE2548 LED Expansion Annunciator Installation Instructions
053-033 DSE2130 Input Expansion Installation Instructions
053-034 DSE2157 Output Expansion Installation Instructions
1.2 TRAINING GUIDES
Training Guides are produced to give ‘handout’ sheets on specific subjects during training sessions
056-005 Using CTs With DSE Products
056-010 Overcurrent Protection
056-018 Negative Phase Sequence
056-019 Earth Fault Protection
056-020 Loss of Excitation
056-021 Mains Decoupling (G59)
056-022 Breaker Control
056-024 GSM Modem
056-026 kW & kVAr
056-029 Smoke Limiting
056-030 Module PIN Codes
056-057 SW1 & SW2
1.3 MANUALS
057-004 Electronic Engines and DSE wiring
057-045 DSE Guide to Synchronising and Load Sharing Part1
057-046 DSE Guide to Synchronising and Load Sharing Part2
057-047 DSE Load Share Design and Commissioning Guide
057-119 DSE8600 Series Configuration Software Manual
057-082 DSE2130 Input Expansion Manual
057-083 DSE2157 Output Expansion Manual
057-084 DSE2548 Annunciator Expansion Manual
Additionally this document refers to the following third party publications
REFERENCE DESCRIPTION
ISBN 1-55937-879-4 IEEE Std C37.2-1996 IEEE Standard Electrical Power System Device Function Numbers
and Contact Designations. Institute of Electrical and Electronics Engineers Inc
ISBN 0-7506-1147-2 Diesel generator handbook. L.L.J.Mahon
ISBN 0-9625949-3-8 On-Site Power Generation. EGSA Education Committee.

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2 INTRODUCTION
This document details the installation and operation requirements of the DSE8600 Series modules, part
of the DSEGenset® range of products.
The manual forms part of the product and should be kept for the entire life of the product. If the
product is passed or supplied to another party, ensure that this document is passed to them for
reference purposes.
This is not a controlled document. You will not be automatically informed of updates. Any future
updates of this document will be included on the DSE website at www.deepseaplc.com
The DSE8620 module has been designed to allow the operator to start and stop the generator, and if
required, transfer the load to the generator either manually (via fascia mounted push-buttons) or
automatically. Utilising the inbuilt synchronising, volts matching and paralleling functions, the controller is
able to parallel with the mains supply for soft transfer of peak lopping. Synchronsing and Load Sharing
features are included within the controller, along with the necessary protections for such a system.
The DSE8620 has mains failure detection to enable the transfer of load to a generator and return back
upon restoration of the mains with added features to avoid transients of the supply.
The user also has the facility to view the system operating parameters via the LCD display.
The DSE8620 module monitors the engine, indicating the operational status and fault conditions,
automatically shutting down the engine and giving a true first up fault condition of an engine failure by a
COMMON AUDIBLE ALARM. The LCD display indicates the fault.
The powerful ARM microprocessor contained within the module allows for incorporation of a range of
complex features:
· Text based LCD display (supporting multiple languages).
· True RMS Voltage, Current and Power monitoring.
· Communications capability (RS485, RS232 or Ethernet)
· Engine parameter monitoring.
· Automatic sync capability
· Load control capability
· Fully configurable inputs for use as alarms or a range of different functions.
· Engine ECU interface to electronic engines.
· Direct connection to governor / AVR for synchronising and load sharing
· R.O.C.O.F. and Vector shift for detection of mains failure when in parallel with the mains supply.
Using a PC and the DSE Configuration Suite software allows alteration of selected operational
sequences, timers and alarms. Additionally, the module’s integral fascia configuration editor allows
adjustment of a subset of this information.
A robust plastic case designed for front panel mounting houses the module. Connections are via locking
plug and sockets.
Selective operational sequences, timers and alarm trips can be altered by the customer via a PC using
the DSE Configuration suite or via the integral front panel configuration editor.
Access to critical operational sequences and timers for use by qualified engineers, can be protected by
a security code. Module access can also be protected by PIN code. Selected parameters can be
changed from the module’s front panel.
The module is housed in a robust plastic case suitable for panel mounting. Connections to the module
are via locking plug and sockets.

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3 SPECIFICATIONS
3.1 PART NUMBERING
8620 - 002 - 01
Product type
DSE 8620 AMF
Automatic Mains
Failure
Controller and
ATS Module
8620
Variant
Standard version 01
Hardware revision
Initial Release 002
At the time of this document production, there have been no revisions to the module hardware.
3.1.1 SHORT NAMES
Short name Description
DSE8000, All modules in the DSE8000 Series
DSE8600,DSE86xx All modules in the DSE8600 sync/load share range
DSE8620 DSE8620 module

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3.2 TERMINAL SPECIFICATION
Connection type Two part connector.
· Male part fitted to module
· Female part supplied in
module packing case - Screw
terminal, rising clamp, no
internal spring. Example showing cable entry and screw
terminals of Minimum cable size 0.5mm² (AWG 24) a 10 way connector
Maximum cable size 2.5mm² (AWG 10)
NOTE: For purchasing additional connector plugs from DSE, please see the section entitled
Maintenance, Spares, Repair and Servicing elsewhere in this document.
3.3 POWER SUPPLY REQUIREMENTS
Minimum supply voltage 8V continuous
Cranking dropouts
Able to survive 0V for 50mS providing the supply was at least 10V before the
dropout and recovers to 5V afterwards.
Maximum supply voltage 35V continuous (60V protection)
Reverse polarity protection -35V continuous
Maximum operating current
300mA at 24V
600mA at 12V
Maximum standby current
190mA at 24V
390mA at 12V
Plant supply instrumentation display
Range 0V-70V DC (note Maximum continuous operating voltage of 35V DC)
Resolution 0.1V
Accuracy 1% full scale (±0.7V)
3.4 GENERATOR VOLTAGE / FREQUENCY SENSING
Measurement type True RMS conversion
Sample Rate 5KHz or better
Harmonics Up to 10th or better
Input Impedance 300K W ph-N
Phase to Neutral 15V (minimum required for sensing frequency) to 333V AC (absolute maximum)
Suitable for 110V to 277V nominal (±20% for under/overvoltage detection)
Phase to Phase 26V (minimum required for sensing frequency) to 576V AC (absolute maximum)
Suitable for 190V ph-ph to 479V ph-ph nominal (±20% for under/overvoltage detection)
Common mode offset from Earth 100V AC (max)
Resolution 1V AC phase to neutral
2V AC phase to phase
Accuracy ±1% of full scale phase to neutral
±2% of full scale phase to phase
Minimum frequency 3.5Hz
Maximum frequency 75.0Hz
Frequency resolution 0.1Hz
Frequency accuracy ±0.2Hz

3.5 GENERATOR CURRENT SENSING
Measurement type True RMS conversion
Sample Rate 5KHz or better
Harmonics Up to 10th or better
Nominal CT secondary rating 1A or 5A (5A recommended)
Maximum continuous current 5A
Overload Measurement 3 x Nominal Range setting
Absolute maximum overload 50A for 1 second
Burden 0.5VA (0.02W current shunts)
common mode offset ±2V peak plant ground to CT common terminal
Resolution 0.5% of 5A
Accuracy ±1% of Nominal (1A or 5A) (excluding CT error)
3.5.1 VA RATING OF THE CTS
The VA burden of the DSE8620 module on the CTs is 0.5VA. However depending upon the type and
length of cabling between the CTs and the DSE8620 module, CTs with a greater VA rating than the
module are required.
11
The distance between the CTs and the
measuring module should be estimated
and cross-referenced against the chart
opposite to find the VA burden of the
cable itself.
If the CTs are fitted within the
alternator top box, the star point
(common) of the CTs should be
connected to system ground (earth) as
close as possible to the CTs. This
minimises the length of cable used to
connect the CTs to the DSE module.
Example.
If 1.5mm² cable is used and the
distance from the CT to the measuring
module is 20m, then the burden of the
cable alone is approximately 15VA. As
the burden of the DSE controller is
0.5VA, then a CT with a rating of at
least 15+0.5V = 15.5VA must be used.
If 2.5mm² cables are used over the
same distance of 20m, then the burden
of the cable on the CT is approximately
7VA. CT’s required in this instance is at
least 7.5VA (7+0.5).
NOTE: - Details for 4mm² cables are shown for reference only. The connectors on the DSE modules are
only suitable for cables up to 2.5mm².
NOTE: - CTs with 5A secondary windings are recommended with DSE modules. 1A CTs can be used if
necessary however, the resolution of the readings is 5 times better when using 5A CTs.

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3.5.2 CT POLARITY
Take care to ensure the correct polarity of the CTs. Incorrect CT orientation will lead to negative kW
readings when the set is supplying power. Take note that paper stick-on labels on CTs that show the
orientation are often incorrectly placed on the CT (!). It is more reliable to use the labelling in the case
moulding as an indicator to orientation (if available).
To test orientation, run the generator in island mode (not in parallel with any other supply) and load the
generator to around 10% of the set rating. Ensure the DSE module shows positive kW for all three
individual phase readings.
labelled as p1,
k or K
labelled as p2,
l or L
TO GENERATOR TO LOAD SWITCH DEVICE
POLARITY OF CT PRIMARY
NOTE:- Take care to ensure correct polarity of the CT primary as shown above. If in
doubt, check with the CT supplier.
3.5.3 CT PHASING
Take particular care that the CTs are connected to the correct phases. For instance, ensure that the
CT on phase 1 is connected to the terminal on the DSE module intended for connection to the CT for
phase 1.
Additionally ensure that the voltage sensing for phase 1 is actually connected to generator phase 1.
Incorrect connection of the phases as described above will result in incorrect power factor (pf)
measurements, which in turn results in incorrect kW measurements.
One way to check for this is to make use of a single-phase load. Place the load on each phase in turn,
run the generator and ensure the kW value appears in the correct phase. For instance if the load is
connected to phase 3, ensure the kW figure appears in phase 3 display and not in the display for
phase 1 or 2.
3.5.4 CT CLASS
Ensure the correct CT type is chosen. For instance if the DSE module is providing overcurrent
protection, ensure the CT is capable of measuring the overload level you wish to protect against, and
at the accuracy level you require.
For instance, this may mean fitting a protection class CT (P10 type) to maintain high accuracy while the
CT is measuring overload currents.
Conversely, if the DSE module is using the CT for instrumentation only (current protection is disabled or
not fitted to the controller), then measurement class CTs can be used. Again, bear in mind the
accuracy you require. The DSE module is accurate to better than 1% of the full-scale current reading.
To maintain this accuracy you should fit Class 0.5 or Class 1 CTs.
You should check with your CT manufacturer for further advice on selecting your CTs

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3.6 INPUTS
3.6.1 DIGITAL INPUTS
Number 11 configurable inputs
Arrangement Contact between terminal and ground
Low level threshold 2.1V minimum
High level threshold 6.6V maximum
Maximum input voltage +50V DC with respect to plant supply negative
Minimum input voltage -24V DC with respect to plant supply negative
Contact wetting current 7mA typical
Open circuit voltage 12V typical
3.6.1 ANALOGUE INPUTS
Oil Pressure (Configurable if engine ECU link provides oil pressure measurement)
Measurement type Resistance measurement by measuring voltage across sensor with a fixed
current applied
Arrangement Differential resistance measurement input
Measurement current 15mA
Full scale 240W
Over range / fail 270W
Resolution 0.1 Bar (1-2 PSI)
Accuracy ±2% of full scale resistance (±4.8W) excluding transducer error
Max common mode voltage ±2V
Display range 13.7 bar (0-200 PSI) subject to limits of the sensor
Coolant Temperature (Configurable if engine ECU link provides coolant temp measurement)
Measurement type Resistance measurement by measuring voltage across sensor with a fixed current applied
Full scale 480W
Resolution 1°C (2°F)
Accuracy +/-2% of full scale resistance (±9.6W) excluding transducer error
Max common mode
±2V
voltage
Display range 0°C -140°C (32°F - 284°F) subject to limits of the sensor
Fuel Level
Measurement type Resistance measurement by measuring voltage across sensor with a fixed current applied
Full scale 480W
Resolution 1°C (2°F)
Accuracy +/-2% of full scale resistance (±9.6W) excluding transducer error
Max common mode
±2V
voltage
Display range 0-250%

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Flexible sensor
Number 2
Measurement type Resistance measurement by measuring voltage across sensor with a fixed current
applied
Full scale 480W
Resolution 1%
Accuracy ±2% of full scale resistance (±9.6W) excluding transducer error
Display range 0-250%
3.6.2 CHARGE FAIL INPUT
Minimum voltage 0V
Maximum voltage 35V (plant supply)
Resolution 0.2V
Accuracy ± 1% of max measured voltage
Excitation Active circuit constant power output
Output Power 2.5W Nominal @12V and 24V
Current at 12V 210mA
Current at 24V 105mA
The charge fail input is actually a combined input and output. Whenever the generator is required to
run, the terminal provides excitation current to the charge alternator field winding.
When the charge alternator is correctly charging the battery, the voltage of the terminal is close to the
plant battery supply voltage. In a failed charge situation, the voltage of this terminal is pulled down to a
low voltage. It is this drop in voltage that triggers the charge failure alarm. The level at which this
operates and whether this triggers a warning or shutdown alarm is configurable using the DSE Config
Suite Software.
3.6.3 MAGNETIC PICKUP
Type Single ended input, capacitive coupled
Minimum voltage 0.5V RMS
Maximum voltage Clamped to ±70V by transient suppressers, dissipation not to exceed 1W.
Maximum frequency 10,000Hz
Resolution 6.25 RPM
Accuracy ±25 RPM
Flywheel teeth 10 to 500
NOTE : DSE can supply a suitable magnetic pickup device, available in two body thread
lengths :
DSE Part number 020-012 - Magnetic Pickup probe 5/8 UNF 2½” thread length
DSE Part number 020-013 - Magnetic Pickup probe 5/8 UNF 4” thread length
Magnetic Pickup devices can often be ‘shared’ between two or more devices. For example, one device
can often supply the signal to both the DSE8600 series module and the engine governor. The possibility
of this depends upon the amount of current that the magnetic pickup can supply.

DSE output drives the contactor coil, via external slave relay if required.
When the DSE module requires the contactor closed, the output energises (closing the internal
relay)
When the DSE module requires the contactor to be open, the output is de-energised (opening
the internal relay)
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3.7 OUTPUTS
Ten (10) digital outputs are fitted to the DSE8620 controller. Additional outputs are provided for by
adding up to ten (10) external relay boards (DSE2157). This allows for up to 80 additional digital
outputs.
3.7.1 OUTPUTS A & B
Type Normally used for Fuel / Start outputs. Fully configurable for other purposes if the module is
configured to control an electronic engine. Supplied from Emergency Stop terminal 3.
Rating 15A resistive @ 35V
3.7.2 CONFIGURABLE OUTPUTS C & D (LOAD SWITCHING)
Type Fully configurable volts free relays. Output C – Normally Closed, Output D –
Normally Open
Rating 8A resistive@ 250V AC
Protection Protected against over current & over temperature. Built in load dump feature.
Contactor coils
Use output D, the normally open relay:
Generator
Undervoltage (UV coils)
Use output C, the normally closed relay :
Generator
DSE output drives the UV coil, via external slave relay if required.
When the generator starts, the UV is powered via the normally closed relay. The breaker is now
ready for the close signal to be given. When the breaker is to be opened, the Open Generator
Pulse relay is operated, removing power from the UV coil for one second. This causes the
breaker to trip (open) as the UV is no longer powered. The Open Generator Pulse relay
switches back to its closed state, ready to power the UV coil the next time the generator starts.

When the DSE module requires the breaker closed, the output energises (closing the internal relay)
for the period of the Breaker Close Pulse timer after which the output is de-energised (opening the
internal relay).
When the DSE module requires the breaker open, the output energises (closing the internal relay).
When the DSE module requires the breaker open, the output energises (closing the internal relay) for
the period of the breaker trip pulse.
16
Closing coils
For continuous closing signals (close signal is present continuously when the breaker is closed),
follow the instructions above as for Contactor Coils.
For momentary (pulsed) closing signals, use OUTPUT D, the normally open relay:
Generator
Opening coils / Shunt Trip coils
For Continuous opening signal, use output D, the normally open relay:
Generator:
For momentary (pulsed) closing signals, use a normally open relay:
Generator:
3.7.1 OUTPUTS E,F,G,H, I ,J & K
Number 7
Type Fully configurable, supplied from DC supply terminal 2.
Rating 3A resistive @ 35V

17
3.8 COMMUNICATION PORTS
USB Port USB2.0 Device for connection to PC running DSE configuration
suite only
Max distance 6m (yards)
Serial Communication RS232 and RS485 are both fitted but and provide independent
operation
RS232 Serial port Non – Isolated port
Max Baud rate 115K baud subject to S/W
TX, RX, RTS, CTS, DSR, DTR, DCD
Male 9 way D type connector
Max distance 15m (50 feet)
RS485 Serial port Isolated
Data connection 2 wire + common
Half Duplex
Data direction control for Transmit (by s/w protocol)
Max Baud Rate 19200
External termination required (120W)
Max common mode offset 70V (on board protection transorb)
Max distance 1.2km (¾ mile)
CAN Port Engine CAN Port
Standard implementation of ‘Slow mode’, up to 250K bits/s
Non-Isolated.
Internal Termination provided (120W)
Max distance 40m (133 feet)
Ethernet Auto detecting 10/100 Ethernet port.
3.9 COMMUNICATION PORT USAGE
3.9.1 CAN INTERFACE
Modules are fitted with the CAN interface as standard and are capable of
receiving engine data from engine CAN controllers compliant with the CAN
standard.
CAN enabled engine controllers monitor the engine’s operating
parameters such as engine speed, oil pressure, engine temperature
(among others) in order to closely monitor and control the engine. The industry standard
communications interface (CAN) transports data gathered by the engine controller interface. This
allows generator controllers such as the DSE8600 series to access these engine parameters with no
physical connection to the sensor device.
NOTE:- For further details for connections to CAN enabled engines and the functions
available with each engine type, refer to the manual Electronic Engines and DSE Wiring.
Part No. 057-004

18
3.9.2 USB CONNECTION
The USB port is provided to give a simple means of connection between a PC and the DSE8600 series
controller.
Using the DSE Configuration Suite Software, the operator is then able to control the module, starting or
stopping the generator, selecting operating modes, etc.
Additionally, the various operating parameters (such as output volts, oil pressure, etc.) of the remote
generator are available to be viewed or changed.
To connect a DSE8600 series module to a PC by USB, the following items are required:
· DSE8600 series module
· DSE 8600 series configuration software
(Supplied on configuration suite software CD or available from
www.deepseaplc.com).
· USB cable Type A to Type B.
(This is the same cable as often used between a PC and a USB
printer)
DSE can supply this cable if required :
PC Configuration interface lead (USB type A – type B) DSE Part No
016-125
NOTE:- The DC supply must be connected to the module for configuration by PC.
NOTE:- Refer to DSE8600 series Configuration Suite Manual (DSE part 057-119) for further
details on configuring, monitoring and control.
3.9.3 USB HOST-MASTER (USB DRIVE CONNECTION)
Capability to add USB Host facility for USB ‘Pen drive’ type interface for data recording
Connector Type A.
For data logging max maximum size 16Gb.(see viewing the instrument pages)

19
3.9.4 RS232
The RS232 port on the DSE8600 series controller supports the Modbus RTU protocol.
The Gencomm register table for the controller is available upon request from the DSE Technical
Support Department.
RS232 is for short distance communication (max 15m) and is typically used to connect the DSE86xx
series controller to a telephone or GSM modem for more remote communications.
Many PCs are not fitted with an internal RS232 serial port. DSE DOES NOT recommend the use of
USB to RS232 convertors but can recommend PC add-ons to provide the computer with an RS232
port.
Recommended PC Serial Port add-ons (for computers without internal RS232 port):
Remember to check these parts are suitable for your PC. Consult your PC supplier for further advice.
· Brainboxes PM143 PCMCIA RS232 card (for laptop PCs)
· Brainboxes VX-001 Express Card RS232 (for laptops and nettops PCs)
· Brainboxes UC246 PCI RS232 card (for desktop PCs)
· Brainboxes PX-246 PCI Express 1 Port RS232 1 x 9 Pin (for desktop
PCs)
Supplier:
Brainboxes
Tel: +44 (0)151 220 2500
Web: http://www.brainboxes.com
Email: Sales:sales@brainboxes.com
NB DSE Have no business tie to Brainboxes. Over many years, our own engineers have used these
products and are happy to recommend them.

20
RECOMMENDED EXTERNAL MODEMS:
· Multitech Global Modem – MultiModem ZBA (PSTN)
DSE Part Number 020-252
(Contact DSE Sales for details of localisation kits for these modems)
· Wavecom Fastrak Supreme GSM modem kit (PSU, Antenna and modem)*
DSE Part number 0830-001-01
· Brodersen GSM Industrial Modem*
DSE Part number 020-245
NOTE: *For GSM modems a SIM card is required, supplied by your GSM network provider :
· For SMS only, a ‘normal’ voice SIM card is required. This enables the controller to send SMS
messages to designated mobile phones upon status and alarm conditions.
· For a data connection to a PC running DSE Configuration Suite Software, a ‘special’ CSD
(Circuit Switched Data) SIM card is required that will enable the modem to answer an incoming
data call. Many ‘pay as you go’ services will not provide a CSD (Circuit Switched Data) SIM
card.

21
3.9.5 RS485
The RS485 port on the DSE8600 series controller supports the Modbus RTU protocol.
The DSE Gencomm register table for the controller is available upon request from the DSE Technical
Support Department.
RS485 is used for point-to-point cable connection of more than one device (maximum 32 devices) and
allows for connection to PCs, PLCs and Building Management Systems (to name just a few devices).
One advantage of the RS485 interface is the large distance specification (1.2km when using Belden
9841 (or equivalent) cable. This allows for a large distance between the DSE8600 series module and a
PC running the DSE Configuration Suite software. The operator is then able to control the module,
starting or stopping the generator, selecting operating modes, etc.
The various operating parameters (such as output volts, oil pressure, etc.) of the remote generator can
be viewed or changed.
NOTE:- For a single module to PC connection and distances up to 6m (8yds) the USB
connection method is more suitable and provides for a lower cost alternative to RS485 (which
is more suited to longer distance connections).
Recommended PC Serial Port add-ons (for computers without internal RS485 port).
Remember to check these parts are suitable for your PC. Consult your PC supplier for further advice.
· Brainboxes PM154 PCMCIA RS485 card (for laptops PCs)
Set to ‘Half Duplex, Autogating” with ‘CTS True’ set to ‘enabled’
· Brainboxes VX-023 ExpressCard 1 Port RS422/485 (for laptops and
nettop PCs)
· Brainboxes UC320 PCI Velocity RS485 card (for desktop PCs)
Set to ‘Half Duplex, Autogating” with ‘CTS True’ set to ‘enabled’
· Brainboxes PX-324 PCI Express 1 Port RS422/485 (for desktop PCs)
Supplier:
Brainboxes
Tel: +44 (0)151 220 2500
Web: http://www.brainboxes.com
Email: Sales:sales@brainboxes.com
NB DSE have no business tie to Brainboxes. Over many years,our own engineers have used these
products and are happy to recommend them.

22
3.9.6 ETHERNET
The DSE8620 is fitted with ETHERNET socket for connection to LAN (local area networks)
Description
1 TX+
2 TX-
3 RX+
4 Do not connect
5 Do not connect
6 RX-
7 Do not connect
8 Do not connect
3.9.6.1 DIRECT PC CONNECTION
Requirements
· DSE8620
· Crossover Ethernet cable (see Below)
· PC with Ethernet port and Windows Internet Explorer 6 or above, Firefox
Crossover
network cable

23
Crossover cable wiring detail
Two pairs crossed, two pairs uncrossed
10baseT/100baseTX crossover
Pin Connection 1 (T568A) Connection 2 (T568B)
1 white/green stripe white/orange stripe
2 green solid orange solid
3 white/orange stripe white/green stripe
4 blue solid blue solid
5 white/blue stripe white/blue stripe
6 orange solid green solid
7 white/brown stripe white/brown stripe
8 brown solid brown solid
NOTE:- This cable can be purchased from any good PC or IT store.
3.9.6.2 CONNECTION TO BASIC ETHERNET
Requirements
For the advanced
Engineer, a
crossover cable is a
CAT5 cable with one
end terminated as
T568A and the other
end terminated as
T568B.
· DSE8620
· Ethernet cable (see below)
· Working Ethernet (company or home network)
Ethernet router
or ADSL router
Ethernet cable

Ethernet cable wiring detail
.
10baseT/100baseT
Pin Connection 1 (T568A) Connection 2 (T568A)
1 white/green stripe white/green stripe
2 green solid green solid
3 white/orange stripe white/orange stripe
6 orange solid orange solid
For the advanced
Engineer, this cable
has both ends
terminated as T568A
(as shown below) or
T568B.
NOTE:- DSE Stock a 2m (2yds) Ethernet Cable – Part number 016-137. Alternatively they
can be purchased from any good PC or IT store.
3.9.6.3 CONNECTION TO COMPANY INFRASTRUCTURE ETHERNET
24
Requirements
· DSE8620
Ethernet cable
PC Network
wall connection
sockets
Ethernet router
or ADSL router

10baseT/100baseT
25
3.9.6.4 CONNECTION TO THE INTERNET
Requirements
· Working Internet connection (ADSL or DSL recommended)
For the advanced
has both ends
terminated as T568A
(as shown below) or
T568B.
Ethernet cable
DSL or ADSL
router
Optional ‘Local’
site PC
INTERNET
DSL or ADSL
router
PC remote
from generator
site
The
DSL/ADSL
router will
route
external
network
traffic.

26
10baseT/100baseT
For the advanced
has both ends
terminated as T568A
(as shown below) or
T568B.

27
Firewall configuration for internet access
As modem/routers differ enormously in their configuration, it is not possible for DSE to give a complete
guide to their use with the DSE8620. However it is possible to give a description of the requirements in
generic terms. For details of how to achieve the connection to your modem/router you are referred to
the supplier of your modem/router equipment.
The DSE8620 makes its data available over Modbus TCP and as such communicates over the
Ethernet using a Port configured via the DSE config suite software..
You must configure your modem/router to allow inbound traffic on this port. For more information you
are referred to your WAN interface device (modem/router) manufacturer.
It is also important to note that if the port assigned (setting from software “Modbus Port Number”) is
already in use on the LAN, the DSE8620 cannot be used and another port must be used .
Outgoing Firewall rule
As the DSE8620 makes its user interface available to standard web browsers, all communication uses
the chosen port. It is usual for a firewall to make the same port outgoing open for communication.
Incoming traffic (virtual server)
Network Address and Port Translation (NAPT) allows a single device, such as the modem/router
gateway, to act as an agent between the Internet (or "public external network") and a local (or "internal
private") network. This means that only a single, unique IP address is required to represent an entire
group of computers.
For our DSE8620 application, this means that the WAN IP address of the modem/router is the IP
address we need to access the site from an external (internet) location.
When requests reaches the modem/router, we want this passed to a ‘virtual server’ for handling, in our
case this is the DSE8620 module.
Result : Traffic arriving from the WAN (internet) on port xxx is automatically sent to IP address set
within the configuration software on the LAN (DSE8620) for handling.

3.10 DSENET® FOR EXPANSION MODULES
DSENet® is the interconnection cable between the host controller and the expansion module(s) and
must not be connect to any device other than DSE equipment designed for connection to the DSENet®
Cable type Two core screened twisted pair
Cable characteristic impedance 120W
Recommended cable Belden 9841
28
Belden 9271
Maximum cable length 1200m (¾ mile) when using Belden 9841 or direct equivalent.
600m (666 yds) when using Belden 9271 or direct equivalent.
DSENet® topology “Daisy Chain” Bus with no stubs (spurs)
DSENet® termination 120W. Fitted internally to host controller. Must be fitted externally to the
‘last’ expansion module by the customer.
Maximum expansion modules Total 20 devices made up of DSE2130 (up to 4), DSE2157 (up to 10),
DSE2548 (up to 10)
This gives the possibility of :
Maximum 80 additional relay outputs
Maximum 80 additional LED indicators
Maximum 32 additional inputs (16 of which can be analogue inputs if
required)
NOTE: As a termination resistor is internally fitted to the host controller, the host
controller must be the ‘first’ unit on the DSENet®. A termination resistor MUST be fitted to the
‘last’ unit on the DSENet®. For connection details, you are referred to the section entitled
‘typical wiring diagram’ elsewhere in this document.
NOTE : DSE8600 series does not support the 2510/2520 display modules.
3.10.1 DSENET® USED FOR MODBUS ENGINE CONNECTION
As DSENet® utilises an RS485 hardware interface, this port can be configured for connection to
Cummins Modbus engines (Engines fitted with Cummins GCS).
This leaves the RS485 interface free for connection to remote monitoring equipment (i.e. Building
Management System, PLC or PC RS485 port).
While this is a very useful feature in some applications, the obvious drawback is that the DSENet®
interface is no longer available for connection to expansion devices.
Example of configuring the DSENet® for connection to Cummins QST GCS using the DSE
Configuration Suite Software:

29
3.11 SOUNDER
DSE8600 Series features an internal sounder to draw attention to warning, shutdown and electrical trip
alarms.
Sounder level 64db @ 1m
3.11.1 ADDING AN EXTERNAL SOUNDER TO THE APPLICATION
Should an external alarm or indicator be required, this can be achieved by using the DSE Configuration
Suite PC software to configure an auxiliary output for “Audible Alarm”, and by configuring an auxiliary
input for “Alarm Mute” (if required).
The audible alarm output activates and de-activates at the same time as the module’s internal sounder.
The Alarm mute input and internal alarm mute button activate ‘in parallel’ with each other. Either signal
will mute both the internal sounder and audible alarm output.
Example of configuration to achieve external sounder with external alarm mute button:
3.12 ACCUMULATED INSTRUMENTATION
NOTE: When an accumulated instrumentation value exceeds the maximum number as
listed below, it will reset and begin counting from zero again.
Engine hours run Maximum 99999 hrs 59 minutes (approximately 11yrs 4months)
Number of starts 1,000,000 (1 million)
The number of logged Engine Hours and Number of Starts can be set/reset using the DSE
Configuration Suite PC software. Depending upon module configuration, this may have been PIN
number locked by your generator supplier

30
3.13 DIMENSIONS AND MOUNTING
3.13.1 DIMENSIONS
240.0mm x 181.1mm x 41.7mm (9.4” x 7.1” x 1.6”)
PANEL CUTOUT
220mm x 160mm (8.7” x 6.3”)
WEIGHT
0.7kg (1.4lb)

31
3.13.2 FIXING CLIPS
The module is held into the panel fascia using the supplied fixing clips.
· Withdraw the fixing clip screw (turn anticlockwise) until only the pointed end is protruding from
the clip.
· Insert the three ‘prongs’ of the fixing clip into the slots in the side of the 8000 series module
case.
· Pull the fixing clip backwards (towards the back of the module) ensuring all three prongs of the
clip are inside their allotted slots.
· Turn the fixing clip screws clockwise until they make contact with the panel fascia.
· Turn the screws a little more to secure the module into the panel fascia. Care should be taken
not to over tighten the fixing clip screws.
Fixing clip
NOTE:- In conditions of excessive vibration, mount the module on suitable anti-vibration
mountings.
Fixing clip fitted to
module

32
3.13.3 CABLE TIE FIXING POINTS
Integral cable tie fixing points are included on the rear of the module’s case to aid wiring. This
additionally provides strain relief to the cable loom by removing the weight of the loom from the screw
connectors, thus reducing the chance of future connection failures.
Care should be taken not to over tighten the cable tie (for instance with cable tie tools) to prevent the
risk of damage to the module case.
Cable tie fixing point With cable and tie in place
3.13.4 SILICON SEALING GASKET
The supplied silicon gasket provides improved sealing between the 8000 series module and the panel
fascia.
The gasket is fitted to the module before installation into the panel fascia.
Take care to ensure the gasket is correctly fitted to the module to maintain the integrity of the seal.
Sealing gasket
Gasket fitted to
module

33
3.14 APPLICABLE STANDARDS
BS 4884-1 This document conforms to BS4884-1 1992 Specification for presentation of
essential information.
BS 4884-2 This document conforms to BS4884-2 1993 Guide to content
BS 4884-3 This document conforms to BS4884-3 1993 Guide to presentation
BS EN 60068-2-1
-30°C (-22°F)
(Minimum temperature)
BS EN 60068-2-2
(Maximum
temperature)
+70°C (158°F)
BS EN 60950 Safety of information technology equipment, including electrical business
equipment
BS EN 61000-6-2 EMC Generic Immunity Standard (Industrial)
BS EN 61000-6-4 EMC Generic Emission Standard (Industrial)
BS EN 60529
(Degrees of protection
provided by enclosures)
IP65 (front of module when installed into the control panel with the supplied
sealing gasket)
IP42 (front of module when installed into the control panel WITHOUT being
sealed to the panel)
UL508
NEMA rating
(Approximate)
12 (Front of module when installed into the control panel with the supplied
sealing gasket).
2 (Front of module when installed into the control panel WITHOUT being
sealed to the panel)
IEEE C37.2
(Standard Electrical
Power System Device
Function Numbers and
Contact Designations)
Under the scope of IEEE 37.2, function numbers can also be used to
represent functions in microprocessor devices and software programs.
The 8000 series controller is device number 11L-8000 (Multifunction device
protecting Line (generator) – 8620 series module).
As the module is configurable by the generator OEM, the functions covered
by the module will vary. Under the module’s factory configuration, the device
numbers included within the module are :
2 – Time delay starting or closing relay
6 –Starting circuit breaker
27AC – AC undervoltage relay
27DC – DC undervoltage relay
30 – annunciator relay
42 – Running circuit breaker
50 – instantaneous overcurrent relay
51 – ac time overcurrent relay
52 – ac circuit breaker
59AC – AC overvoltage relay
59DC – DC overvoltage relay
62 – time delay stopping or opening relay
63 – pressure switch
74– alarm relay
81 – frequency relay
86 – lockout relay
In line with our policy of continual development, Deep Sea Electronics, reserve the right to change specification without notice.

34
3.14.1 ENCLOSURE CLASSIFICATIONS
IP CLASSIFICATIONS
8600 series specification under BS EN 60529 Degrees of protection provided by enclosures
IP65 (Front of module when module is installed into the control panel with the optional sealing gasket).
IP42 (front of module when module is installed into the control panel WITHOUT being sealed to the panel)
First Digit Second Digit
Protection against contact and ingress of solid objects Protection against ingress of water
0 No protection 0 No protection
1 Protected against ingress solid objects with a
diameter of more than 50 mm. No protection against
deliberate access, e.g. with a hand, but large surfaces
of the body are prevented from approach.
1 Protection against dripping water falling vertically. No
harmful effect must be produced (vertically falling drops).
2 Protected against penetration by solid objects with a
diameter of more than 12 mm. Fingers or similar
objects prevented from approach.
2 Protection against dripping water falling vertically. There
must be no harmful effect when the equipment (enclosure)
is tilted at an angle up to 15° from its normal pos ition
(drops falling at an angle).
3 Protected against ingress of solid objects with a
diameter of more than 2.5 mm. Tools, wires etc. with a
thickness of more than 2.5 mm are prevented from
approach.
3 Protection against water falling at any angle up to 60°
from the vertical. There must be no harmful effect (spray
water).
4 Protected against ingress of solid objects with a
diameter of more than 1 mm. Tools, wires etc. with a
thickness of more than 1 mm are prevented from
approach.
4 Protection against water splashed against the equipment
(enclosure) from any direction. There must be no harmful
effect (splashing water).
5 Protected against harmful dust deposits. Ingress of
dust is not totally prevented but the dust must not enter
in sufficient quantity to interface with satisfactory
operation of the equipment. Complete protection
against contact.
5 Protection against water projected from a nozzle against
the equipment (enclosure) from any direction. There must
be no harmful effect (water jet).
6 Protection against ingress of dust (dust tight).
Complete protection against contact.
6 Protection against heavy seas or powerful water jets.
Water must not enter the equipment (enclosure) in harmful
quantities (splashing over).

35
3.14.2 NEMA CLASSIFICATIONS
8600 series NEMA Rating (Approximate)
12 (Front of module when module is installed into the control panel with the optional sealing gasket).
2 (front of module when module is installed into the control panel WITHOUT being sealed to the panel)
NOTE: - There is no direct equivalence between IP / NEMA ratings. IP figures shown are
approximate only.
1
IP30
Provides a degree of protection against contact with the enclosure equipment and against a limited amount of falling dirt.
2
IP31
Provides a degree of protection against limited amounts of falling water and dirt.
3
IP64
Provides a degree of protection against windblown dust, rain and sleet; undamaged by the formation of ice on the enclosure.
3R
IP32
Provides a degree of protection against rain and sleet:; undamaged by the formation of ice on the enclosure.
4 (X)
IP66
Provides a degree of protection against splashing water, windblown dust and rain, hose directed water; undamaged by the formation
of ice on the enclosure. (Resist corrosion).
12/12K
IP65
Provides a degree of protection against dust, falling dirt and dripping non corrosive liquids.
13
IP65
Provides a degree of protection against dust and spraying of water, oil and non corrosive coolants.

Terminals 39-46 Terminals 47-50 Terminals 51-57 Terminals 60-68
36
4 INSTALLATION
The DSE8xxx Series module is designed to be mounted on the panel fascia. For dimension and
mounting details, see the section entitled Specification, Dimension and mounting elsewhere in this
document.
4.1 TERMINAL DESCRIPTION
To aid user connection, icons are used on the rear of the module to help identify terminal functions. An
example of this is shown below.
NOTE : Availability of some terminals depends upon module version. Full details are given
in the section entitled Terminal Description elsewhere in this manual.
Terminals 1-13 Terminals 15-19 Terminals 22-36
USB (B)
PC configuration
connection.
USB
Serial and
part
number
label
Ethernet

4.1.1 DC SUPPLY, FUEL AND START OUTPUTS, OUTPUTS E-J
37
PIN
No
DESCRIPTION CABLE
SIZE
NOTES
1
DC Plant Supply Input
(Negative)
2.5mm²
AWG 13
2
DC Plant Supply Input
(Positive)
2.5 mm²
AWG 13
(Recommended Maximum Fuse 15A anti-surge)
Supplies the module (2A anti-surge requirement) and
Output relays E,F,G & H
3 Emergency Stop Input
2.5mm²
AWG 13
Plant Supply Positive. Also supplies outputs 1 & 2.
(Recommended Maximum Fuse 20A)
4 Output relay A (FUEL) 2.5mm²
AWG 13
Plant Supply Positive from terminal 3. 15 Amp rated.
Fixed as FUEL relay if electronic engine is not configured.
5 Output relay B (START)
2.5mm²
AWG 13
Fixed as START relay if electronic engine is not
configured.
6 Charge fail / excite
2.5mm²
AWG 13
Do not connect to ground (battery negative).
If charge alternator is not fitted, leave this terminal
disconnected.
7 Functional Earth 2.5mm²
AWG 13
Connect to a good clean earth point.
8 Output relay E 1.0mm²
AWG 18
9 Output relay F 1.0mm²
AWG 18
10 Output relay G 1.0mm²
AWG 18
Plant Supply Positive. from terminal 2. 3 Amp rated.
11 Output relay H 1.0mm²
AWG 18
12 Output relay I 1.0mm²
AWG 18
13 Output relay J 1.0mm²
AWG 18
NOTE:- Terminal 14 is not fitted to the DSE 8620 controller.
NOTE:- When the module is configured for operation with an electronic engine, FUEL and
START output requirements may be different. Refer to Electronic Engines and DSE Wiring for
further information. Part No. 057-004.

38
4.1.2 ANALOGUE SENSOR
PIN
No
DESCRIPTION CABLE
SIZE
NOTES
15 Sensor Common Return
0.5mm²
AWG 20 Return feed for sensors*
16 Oil Pressure Input
0.5mm²
AWG 20 Connect to Oil pressure sensor
17 Coolant Temperature Input 0.5mm²
AWG 20
Connect to Coolant Temperature sensor
18 Fuel Level input
0.5mm²
AWG 20 Connect to Fuel Level sensor
19
Flexible sensor 0.5mm²
AWG 20 Connect to additional sensor (user configurable)
NOTE:- Terminals 20 and 21 are not fitted to the 8600 series controller.
NOTE: - It is VERY important that terminal 15 (sensor common) is soundly connected to an
earth point on the ENGINE BLOCK, not within the control panel, and must be a sound electrical
connection to the sensor bodies. This connection MUST NOT be used to provide an earth
connection for other terminals or devices. The simplest way to achieve this is to run a
SEPARATE earth connection from the system earth star point, to terminal 15 directly, and not
use this earth for other connections.
NOTE: - If you use PTFE insulating tape on the sensor thread when using earth return
sensors, ensure you do not insulate the entire thread, as this will prevent the sensor body from
being earthed via the engine block.

4.1.3 MAGNETIC PICKUP, CAN AND EXPANSION
39
PIN
No
DESCRIPTION CABLE
SIZE
NOTES
22 Magnetic pickup Positive 0.5mm²
AWG 20
Connect to Magnetic Pickup device
23 Magnetic pickup Negative 0.5mm²
AWG 20
Connect to Magnetic Pickup device
24 Magnetic pickup screen Shield Connect to ground at one end only
25 CAN port H 0.5mm²
AWG 20
Use only 120W CAN approved cable
26 CAN port L 0.5mm²
AWG 20
27 CAN port Common 0.5mm²
AWG 20
28 DSENet expansion + 0.5mm²
AWG 20
Use only 120W RS485 approved cable
29 DSENet expansion - 0.5mm²
AWG 20
30 DSENet expansion SCR 0.5mm²
AWG 20
MSC
31 Multiset Comms (MSC) Link H 0.5mm²
AWG 20
32 Multiset Comms (MSC) Link L 0.5mm²
AWG 20
33 Multiset Comms (MSC) Link SCR 0.5mm²
AWG 20
GOV
34 Analogue Governor Output B 0.5mm²
AWG 20
35 Analogue Governor Output A 0.5mm²
AWG 20
AVR
37 Analogue AVR Output B 0.5mm²
AWG 20
38 Analogue AVR Output A 0.5mm²
AWG 20
NOTE:- Terminal 36 is not fitted to the 8620 controller
NOTE:- Screened cable must be used for connecting the Magnetic Pickup, ensuring that
the screen is earthed at one end ONLY.
NOTE:- Screened 120W impedance cable specified for use with CAN must be used for the
CAN link and the Multiset comms link.
DSE stock and supply Belden cable 9841 which is a high quality 120W impedance cable suitable
for CAN use (DSE part number 016-030)
NOTE:- When the module is configured for CAN operation, terminals 22, 23 & 24 should be
left unconnected. Engine speed is transmitted to the 8620 series controller on the CAN link.
Refer to Electronic Engines and DSE Wiring for further information. Part No. 057-004.

4.1.4 V1 LOAD SWITCHING AND GENERATOR VOLTAGE SENSING
40
PIN
No
DESCRIPTION CABLE
SIZE
NOTES
39 Output relay C 1.0mm
AWG 18
Normally configured to control mains contactor coil
(Recommend 10A fuse)
40 Output relay C 1.0mm
AWG 18
Normally configured to control mains contactor coil
41 Output relay D 1.0mm
AWG 18
Normally configured to control generator contactor coil
(Recommend 10A fuse)
42 Output relay D 1.0mm
AWG 18
Normally configured to control generator contactor coil
V1
43 Generator L1 (U) voltage
monitoring
1.0mm²
AWG 18
Connect to generator L1 (U) output (AC)
(Recommend 2A fuse)
44 Generator L2 (V) voltage
monitoring input
1.0mm²
AWG 18
Connect to generator L2 (V) output (AC)
(Recommend 2A fuse)
45 Generator L3 (W) voltage
monitoring input
1.0mm²
AWG 18
Connect to generator L3 (W) output (AC)
(Recommend 2A fuse)
46 Generator Neutral (N) input 1.0mm²
AWG 18
Connect to generator Neutral terminal (AC)
NOTE:- The above table describes connections to a three phase, four wire alternator. For
alternative wiring topologies, please see the ALTERNATIVE AC TOPOLOGIES section of this
manual.
4.1.5 V2 MAINS VOLTAGE SENSING
PIN
No
DESCRIPTION CABLE
SIZE
NOTES
V2
47 Mains L1 (R) voltage monitoring 1.0mm
AWG 18
Connect to Mains L1 (R) incoming supply (AC)
(Recommend 2A fuse)
48 Mains L2 (S) voltage monitoring 1.0mm
AWG 18
Connect to Mains L1 (S) incoming supply (AC)
(Recommend 2A fuse)
49 Mains L3 (T) voltage monitoring 1.0mm
AWG 18
Connect to Mains L1 (T) incoming supply (AC)
(Recommend 2A fuse)
50 Mains Neutral (N) input 1.0mm
AWG 18
Connect to Mains N incoming supply (AC)

4.1.6 GENERATOR CURRENT TRANSFORMERS
WARNING!:- Do not disconnect this plug when the CTs are carrying current.
Disconnection will open circuit the secondary of the C.T.’s and dangerous voltages may then
develop. Always ensure the CTs are not carrying current and the CTs are short circuit
connected before making or breaking connections to the module.
NOTE:- The DSE8620 module has a burden of 0.5VA on the CT. Ensure the CT is rated for
the burden of the DSE 8620 controller, the cable length being used and any other equipment
sharing the CT. If in doubt, consult your CT supplier.
41
PIN
No
DESCRIPTION CABLE
SIZE
NOTES
51 CT Secondary for Gen L1 2.5mm²
AWG 13
Connect to s1 secondary of L1 monitoring CT
AWG 13
AWG 13
Connection to terminals 54 & 55
The function of terminals 54 and 55 change position depending upon wiring topology as follows :
Topology Pin
No
Description CABLE
SIZE
No earth fault measuring
54 DO NOT CONNECT
55 Connect to s2 of the CTs connected to
L1,L2,L3,N
2.5mm²
AWG 13
Restricted earth fault measuring
54 Connect to s2 of the CTs connected to
L1,L2,L3,N
2.5mm²
AWG 13
55 Connect to s1 of the CT on the neutral
conductor
2.5mm²
AWG 13
Un-restricted earth fault measuring
(Earth fault CT is fitted in the neutral to earth
link)
54 Connect to s1 of the CT on the neutral to
earth conductor.
2.5mm²
AWG 13
55
Connect to s2 of the CT on the neutral to
earth link.
Also connect to the s2 of CTs connected to
L1, L2, L3.
2.5mm²
AWG 13
4.1.7 MAINS CURRENT TRANSFORMERS
PIN
No
DESCRIPTION
CABLE
SIZE
NOTES
56 CT Secondary for Mains L1 2.5mm²
AWG 13
57 CT Secondary for Mains L2 2.5mm²
AWG 13
NOTE:- Take care to ensure correct polarity of the CT primary as shown overleaf. If in
doubt, check with the CT supplier.
NOTE: - Terminals 56 to 59 are not fitted to the 8610 series controller.

42
CT CONNECTIONS
p1, k or K is the primary of the CT that ‘points’ towards the GENERATOR
p2, l or L is the primary of the CT that ‘points’ towards the LOAD
s1 is the secondary of the CT that connects to the DSE Module’s input for the CT measuring
(I1,I2,I3)
s2 is the secondary of the CT that should be commoned with the s2 connections of all the other CTs
and connected to the CT common terminal of the DSE8600 series modules.
CT labelled as
p1, k or K
To Load
CT labelled as
To Supply p2, l or L

4.1.8 CONFIGURABLE DIGITAL INPUTS
43
PIN
No
DESCRIPTION CABLE
SIZE
NOTES
60 Configurable digital input A 0.5mm²
AWG 20
Switch to negative
61 Configurable digital input B 0.5mm²
AWG 20
Switch to negative
62 Configurable digital input C 0.5mm²
AWG 20
Switch to negative
63 Configurable digital input D 0.5mm²
AWG 20
Switch to negative
64 Configurable digital input E 0.5mm²
AWG 20
Switch to negative
65 Configurable digital input F 0.5mm²
AWG 20
Switch to negative
66 Configurable digital input G 0.5mm²
AWG 20
Switch to negative
67 Configurable digital input H 0.5mm²
AWG 20
Switch to negative
68 Configurable digital input I 0.5mm²
AWG 20
Switch to negative
69 Configurable digital input J 0.5mm²
AWG 20
Switch to negative
70 Configurable digital input K 0.5mm²
AWG 20
Switch to negative
NOTE:- See the software manual for full range of configurable outputs available.
4.1.9 PC CONFIGURATION INTERFACE CONNECTOR
DESCRIPTION CABLE
SIZE
NOTES
Socket for connection to PC with 86xx
series PC software.
0.5mm²
AWG 20
This is a standard USB type A
to type B connector.
NOTE:- The USB connection cable between the PC and the 8600 series module must not
be extended beyond 5m (yards). For distances over 5m, it is possible to use a third party USB
extender. Typically, they extend USB up to 50m (yards). The supply and support of this type of
equipment is outside the scope of Deep Sea Electronics PLC.
CAUTION!: Care must be taken not to overload the PCs USB system by connecting more
than the recommended number of USB devices to the PC. For further information, consult your
PC supplier.
CAUTION!: This socket must not be used for any other purpose.

44
4.1.10 RS485 CONNECTOR
PIN No NOTES
A Two core screened twisted pair cable.
120W impedance suitable for RS485 use.
Recommended cable type - Belden 9841
Max distance 1200m (1.2km) when using Belden 9841 or direct equivalent.
B
SCR
Location of RS485 connector
4.1.11 RS232 CONNECTOR
PIN No NOTES
1 Received Line Signal Detector (Data Carrier Detect)
2 Received Data
3 Transmit Data
4 Data Terminal Ready
5 Signal Ground
6 Data Set Ready
7 Request To Send
8 Clear To Send
9 Ring Indicator
Location of RS232
connector
View looking into the male connector on the 8000 series module

4.2 TYPICAL WIRING DIAGRAMS
As every system has different requirements, these diagrams show only a TYPICAL system and do not
intend to show a complete system.
Genset manufacturers and panel builders may use these diagrams as a starting point; however, you
are referred to the completed system diagram provided by your system manufacturer for complete
wiring detail.
Further wiring suggestions are available in the following DSE publications, available at
www.deepseaplc.com to website members.
056-022 Breaker Control (Training guide)
057-004 Electronic Engines and DSE Wiring
45

4.2.1 3 PHASE, 4 WIRE WITH RESTRICTED EARTH FAULT PROTECTION
NOTE:- Earthing the neutral conductor ‘before’ the neutral CT allows the module to read
earth faults ‘after’ the CT only (Restricted to load / downstream of the CT)
Earthing the neutral conductor ‘after’ the neutral CT allows the module to read earth faults
‘before’ the CT only (Restricted to generator / upstream of the CT)
NOTE:- The MAINS CT is only required on for ‘true’ peak lop systems where the mains is
held at a constant level and the generator provides variable power to the load.
46

47
4.3 ALTERNATIVE TOPOLOGIES
The 8000 controller is factory configured to connect to a 3 phase, 4 wire Star connected alternator.
This section details connections for alternative AC topologies. Ensure to configure the 8000 series
controller to suit the required topology.
NOTE:- Further details of module configuration are contained within the DSE8000 Series
configuration software manual (DSE part number 057-078)
4.3.1 3 PHASE, 4 WIRE WITHOUT EARTH FAULT PROTECTION

4.3.2 SINGLE PHASE WITH RESTRICTED EARTH FAULT
4.3.3 SINGLE PHASE WITHOUT EARTH FAULT
48

4.3.4 2 PHASE (L1 & L2) 3 WIRE WITH RESTRICTED EARTH FAULT
4.3.5 2 PHASE (L1 & L2) 3 WIRE WITHOUT EARTH FAULT
49

4.3.6 2 PHASE (L1 & L3) 3 WIRE WITH RESTRICTED EARTH FAULT
4.3.7 2 PHASE (L1 & L3) 3 WIRE WITHOUT EARTH FAULT MEASURING
50

4.3.8 3 PHASE 4 WIRE WITH UNRESTRICTED EARTH FAULT MEASURING
NOTE:- Unrestricted Earth Fault Protection detects earth faults in the load and in the
generator. Be sure to measure the natural earth fault of the site before deciding upon an earth
fault alarm trip level.
51
4.3.9 EARTH SYSTEMS
4.3.9.1 Negative Earth
The typical wiring diagrams located within this document show connections for a negative earth system
(the battery negative connects to Earth)
4.3.9.2 Positive Earth
When using a DSE module with a Positive Earth System (the battery positive connects to Earth), the
following points must be followed:
· Follow the typical wiring diagram as normal for all sections EXCEPT the earth points
· All points shown as Earth on the typical wiring diagram should connect to BATTERY
NEGATIVE (not earth).
4.3.9.3 Floating earth
Where neither the battery positive nor battery negative terminals are connected to earth the following
points must to be followed

4.4 TYPICAL ARRANGEMENT OF DSENET®
Twenty (20) devices can be connected to the DSENet®, made up of the following devices :
Device Max number supported
DSE2130 Input Expansion 4
DSE2157 Output Expansion 10
DSE2548 LED Expansion 10
For part numbers of the expansion modules and their documentation, see section entitled DSENet
Expansion Modules elsewhere in this manual.
52

53
4.4.1 EARTH SYSTEMS
4.4.1.1 Negative Earth
The typical wiring diagrams located within this document show connections for a negative earth system
(the battery negative connects to Earth)
4.4.1.2 Positive Earth
When using a DSE module with a Positive Earth System (the battery positive connects to Earth), the
following points must be followed:
4.4.1.3 Floating Earth
Where neither the battery positive nor battery negative terminals are connected to earth, the following
points must to be followed

5 DESCRIPTION OF CONTROLS
The following section details the function and meaning of the various controls on the module.
5.1 DSE8620 AUTOMATIC MAINS FAILURE (AMF) CONTROL MODULE
54
Menu navigation
buttons
Four configurable
LEDs
Select Stop
mode
Select Manual
mode
Select Auto
mode
Transfer to
Generator
(manual mode
only)
Start engine(s)
(when in
manual or
Testmode)
Mute alarm /
Lamp test
Transfer to
mains (manual
mode only)
Main status and
instrumentation display
Select Test
mode

55
Mains Available
LED.
On when the
mains is within
limits and able to
take load.
Close Mains LED.
On When The Mains Is On
Load.
Close Bus LED.
On When The Bus Is On
Load.
Generator
Available
LED.
On when the
generator is
within limits
and able to
take load.

5.2 VIEWING THE INSTRUMENT PAGES
It is possible to scroll to display the different pages of information by repeatedly operating the next /
If you want to view one of the
instrument pages towards the
end of the list, it may be
quicker to scroll left through
the pages rather than right!
56
previous page buttons .
Example
Status Engine Generator
And so on until the last page is reached.
A Further press of the scroll right button
returns the display to the Status page.
The complete order and contents of each information page are given in the following sections
Once selected the page will remain on the LCD display until the user selects a different page, or after
an extended period of inactivity (LCD Page Timer), the module will revert to the status display.
If no buttons are pressed upon entering an instrumentation page, the instruments will be displayed
automatically subject to the setting of the LCD Scroll Timer.
The LCD Page and LCD Scroll timers are configurable using the DSE Configuration Suite Software or
by using the Front Panel Editor.
The screenshot shows the factory
settings for the timers, taken from
the DSE Configuration Suite
Software.
Alternatively, to scroll manually through all instruments on the currently selected page, press the scroll
buttons. The ‘autoscroll’ is disabled.
If you want to view one of the
instruments towards the end
of the list, it may be quicker to
scroll up through the
instruments rather than down!
To re-enable ‘autoscroll’ press the scroll buttons to scroll to the ‘title’ of the instrumentation
page (ie Engine). A short time later (the duration of the LCD Scroll Timer), the instrumentation display
will begin to autoscroll.
When scrolling manually, the display will automatically return to the Status page if no buttons are
pressed for the duration of the configurable LCD Page Timer.
If an alarm becomes active while viewing the status page, the display shows the Alarms page to draw
the operator’s attention to the alarm condition.

‘Stop Mode’ etc is
displayed on the
Home Page
57
5.2.1 STATUS
This is the ‘home’ page, the page that is displayed when no other page has been selected, and the
page that is automatically displayed after a period of inactivity (LCD Page Timer) of the module control
buttons.
This page will change with the action of the controller , when on gen generator parameters will be seen
and when changing to mains the mains parameters will be shown.
SSSSttttaaaattttuuuussss 22222222::::33331111 Factory setting of Status screen showing engine stopped...
GGGGeeeennnneeeerrrraaaattttoooorrrr aaaatttt RRRReeeesssstttt
SSSSttttoooopppp MMMMooooddddeeee
SSSSaaaaffffeeeettttyyyy oooonnnn DDDDeeeellllaaaayyyy
00000000::::00004444
...and engine running
L-NNNN 222211115555VVVV 44443333AAAA
L-LLLL 333377773333VVVV
44447777....5555HHHHzzzz
0000kkkkWWWW
0000....0000ppppffff
The contents of this display may vary depending upon configuration by the generator manufacturer /
supplier.
The display above is achieved with the factory settings, shown below in the DSE Configuration suite
software:
With a summary of the
instrumentation shown when
the engine is running.
Other pages can be configured to
be shown, automatically scrolling
when the set is running.
NOTE:- The following sections detail instrumentation pages, accessible using the scroll
left and right buttons, regardless of what pages are configured to be displayed on the ‘status’
screen.

58
5.2.2 ENGINE
Contains instrumentation gathered about the engine itself, some of which may be obtained using the
CAN or other electronic engine link.
· Engine Speed
· Oil Pressure
· Coolant Temperature
· Engine Battery Volts
· Engine Run Time
· Engine Fuel Level
· Oil Temperature*
· Coolant Pressure*
· Inlet Temperature*
· Exhaust Temperature*
· Fuel Temperature*
· Turbo Pressure*
· Fuel Pressure*
· Fuel Consumption*
· Fuel Used*
· Fuel Level*
· Auxiliary Sensors (If fitted and configured)
· Engine Maintenance Due (If configured)
· Engine ECU Link*
*When connected to suitably configured and compatible engine ECU. For details of supported engines
see ‘Electronic Engines and DSE wiring’ (DSE Part number 057-004).
· Tier 4 engine information will also be available if used with a Tier 4 suitable engine / ECU.
Depending upon configuration and instrument function, some of the instrumentation items may include a
tick icon beside them. This denotes a further function is available, detailed in the ‘operation’ section
of this document.
Example:
The tick icon denotes that manual fuel pump control is
enabled in this system.
Press and hold to start the fuel transfer pump, release to
stop the pump. This is detailed further in the section entitled
‘operation’ elsewhere in this document.

5.2.3 GENERATOR
Contains electrical values of the generator (alternator), measured or derived from the module’s voltage
and current inputs.
59
· Generator Voltage (ph-N)
· Generator Voltage (ph-ph)
· Generator Frequency
· Generator Current
· Generator Earth Current
· Generator Load %
· Generator Load (kW)
· Generator Load (kVA)
· Generator Power Factor
· Generator Power Factor Average
· Generator Load (kVAr)
· Generator Load (kWh, kVAh, kVArh)
· Generator Phase Sequence
· Generator config (Nominals)
· Generator Active Config
· Synchroscope display
5.2.4 MAINS
· Mains Voltage (ph-N)
· Mains Voltage (ph-ph)
· Mains Frequency
· Mains Current
· Mains Load (kW)
· Mains Load Total (kW)
· Mains Load (kVA)
· Mains Load Total (kVA)
· Mains Power Factor
· Mains Power Factor Average
· Mains Load (kVAr)
· Mains Load (kWh, kVAh, kVArh)
· Mains Phase Sequence
· Mains config (Nominals)
· Mains Active Config

5.2.1 RS232 SERIAL PORT
This section is included to give information about the RS232 serial port and external modem (if
connected).
The items displayed on this page will change depending upon configuration of the module. You are
referred to your system supplier for further details.
NOTE:- Factory Default settings are for the RS232 port to be enabled with no modem
connected, operating at 19200 baud, modbus slave address 10.
Example 1 – Module connected to an RS232 telephone modem.
When the DSE8610 series module is power up, it will send ‘initialisation strings’ to the connected
modem. It is important therefore that the modem is already powered, or is powered up at the same
time as the DSE86xx series module. At regular intervals after power up, the modem is reset, and
reinitialised, to ensure the modem does not ‘hang up’.
If the DSE8610 series module does not correctly communicate with the modem, “Modem initialising’
appears on the Serial Port instrument screen as shown overleaf.
If the module is set for “incoming calls” or for “incoming and outgoing calls”, then if the modem is
dialled, it will answer after two rings (using the factory setting ‘initialisation strings)’. Once the call is
established, all data is passed from the dialling PC and the DSE8610 series module.
If the module is set for “outgoing calls” or for “incoming and outgoing calls”, then the module will dial out
whenever an alarm is generated. Note that not all alarms will generate a dial out; this is dependant
upon module configuration of the event log. Any item configured to appear in the event log will cause a
dial out.
Press down to view the modem status....
Indicates that a modem is configured. Shows ‘RS232’ if no
modem is configured.
60

61
Example 1 continued – Modem diagnostics
Modem diagnostic screens are included; press when viewing the RS232 Serial Port instrument
to cycle the available screens. If you are experiencing modem communication problems, this
information will aid troubleshooting.
SSSSeeeerrrriiiiaaaallll PPPPoooorrrrtttt
RRRRTTTTSSSS
CCCCTTTTSSSS
DDDDSSSSRRRR
DDDDTTTTRRRR
DDDDCCCCDDDD
Line Description
RTS Request To Send Flow control
CTS Clear To Send Flow control
DSR Data Set Ready Ready to communicate
DTR Data Terminal Ready Ready to communicate
DCD Data Carrier Detect Modem is connected
MMMMooooddddeeeemmmm CCCCoooommmmmmmmaaaannnnddddssss
RRRRxxxx:::: OOOOKKKK
TTTTxxxx:::: AAAATTTT++++IIIIPPPPRRRR====9999666600000000
RRRRxxxx:::: OOOOKKKK
Modem Setup Sequence
1)
If the Modem and DSE8600 series communicate successfully:
2)
Shows the state of the modem communication lines. These can
help diagnose connection problems.
Example:
RTS A dark background shows the line is active.
RTS a grey background shows that the line is toggling high and
low.
RTS No background indicates that the line is inactive
Shows the last command sent to the modem and the result of the
command.

In case of communication failure between the modem and DSE8600 series module, the modem is
automatically reset and initialisation is attempted once more:
Currently connected GSM
operator and signal strength.
62
3)
In the case of a module that is unable to communicate with the modem, the display will
continuously cycle between ‘Modem Reset’ and ‘Modem Initialising’ as the module resets the
modem and attempts to communicate with it again, this will continue until correct
communication is established with the modem.
In this instance, you should check connections and verify the modem operation.
Example 2 – Module connected to a modem.
Example 3 – Modem status of a GSM modem
Many GSM modems are fitted with a status LED to show operator cell status and ringing indicator.
These can be a useful troubleshooting tool.
In the case of GSM connection problems, try calling the DATA number of the SIMCARD with an
ordinary telephone. There should be two rings, followed by the modem answering the call and then
‘squealing’. If this does not happen, you should check all modem connections and double check with the
SIM provider that it is a DATA SIM and can operate as a data modem. DATA is NOT the same as FAX
or GPRS and is often called Circuit Switched Data (CSD) by the SIM provider.
NOTE: In the case of GSM modems, it is important that a DATA ENABLED SIM is used. This is often a
different number than the ‘voice number’ and is often called Circuit Switched Data (CSD) by the SIM
provider.
If the GSM modem is not purchased from DSE, ensure that it has been correctly set to operate at
9600 baud. You may need to install a terminal program on your PC and consult your modem supplier to
do this. GSM modems purchased from DSE are already configured to work with the DSE86xx series
module.

5.2.1 RS485 SERIAL PORT
This section is included to give information about the currently selected serial port and external modem
(if connected).
The items displayed on this page will change depending upon configuration of the module. You are
referred to your system supplier for further details.
NOTE:- Factory Default settings are for the RS485 port to operating at 19200 baud,
63
modbus slave address 10.
Module RS485 port configured for connection to a modbus master.
DSE86xx series modules operate as a modbus RTU slave device.
In a modbus system, there can be only one Master, typically a PLC, HMI
system or PC SCADA system.
This master requests for information from the modbus slave (DSE86xx
series module) and may (in control systems) also send request to change operating modes etc. Unless
the Master makes a request, the slave is ‘quiet’ on the data link.
The factory settings are for the module to communicate at 19200 baud, modbus slave address 10.
To use the RS485 port, ensure that ‘port usage’ is correctly set using the DSE Configuration Suite
Software.
Required settings are shown below.
‘Master inactivity timeout’ should be set to at least twice the value of the system scan time. For
example if a modbus master PLC requests data from the DSE86xx modbus slave once per second, the
timeout should be set to at least 2 seconds.
The DSE Modbus Gencomm document containing register mappings inside the DSE module is
available upon request from support@deepseaplc.com. Email your request along with the serial
number of your DSE module to ensure the correct information is sent to you.

64
Typical requests (using Pseudo code)
BatteryVoltage=ReadRegister(10,0405,1) : reads register (hex) 0405 as a single register (battery volts)
from slave address 10.
WriteRegister(10,1008,2,35701, 65535-35701) : Puts the module into AUTO mode by writing to (hex)
register 1008, the values 35701 (auto mode) and register 1009 the value 65535-35701 (the bitwise
opposite of auto mode)
Shutdown=(ReadRegister(10,0306,1) >> 12) & 1) : reads (hex) 0306 and looks at bit 13 (shutdown alarm
present)
Warning=(ReadRegister(10,0306,1) >> 11) & 1) : reads (hex) 0306 and looks at bit 12 (Warning alarm
present)
ElectricalTrip=(ReadRegister(10,0306,1) >> 10) & 1) : reads (hex) 0306 and looks at bit 11 (Electrical
Trip alarm present)
ControlMode=ReadRegister(10,0304,2); reads (hex) register 0304 (control mode).
5.2.2 ABOUT
Contains important information about the module and the firmware versions. This information may be
asked for when contacting DSE Technical Support Department for advice.
· Module Type (i.e. 8620)
· Application Version – The version of the module’s main firmware file – Updatable using the
Firmware Update Wizard in the DSE Configuration Suite Software.
· USB ID – unique identifier for PC USB connection
· Analogue Measurements software version
· Firmware Update Boot loader software version.
5.2.2.1 Ethernet Pages
· Update Network settings using DSE Configuration Suite Software+ 1 Power cycle off/on
before the editor pages are updated..
NNNNeeeettttwwwwoooorrrrkkkk
IIIIPPPP aaaaddddddddrrrreeeessssssss
111199992222....xxxxxxxxxxxx....xxxxxxxx....xxxxxxxx
DDDDHHHHCCCCPPPP DDDDiiiissssaaaabbbblllleeeedddd
SSSSuuuubbbbnnnneeeetttt mmmmaaaasssskkkk
222255555555....222255555555....222255555555....0000
GGGGaaaatttteeeewwwwaaaayyyy aaaaddddddddrrrreeeessssssss
111199992222....xxxxxxxxxxxx....xxxxxxxx....xxxxxxxxxxxx
DDDDNNNNSSSS aaaaddddddddrrrreeeessssssss
111199992222....xxxxxxxxxxxx....xxxxxxxx....xxxxxxxx

65
MMMMAAAACCCC aaaaddddddddrrrreeeessssssss
EEEE8888....AAAA4444....CCCC1111....0000....AAAA....CCCC2222
DDDDHHHHCCCCPPPP
HHHHOOOOSSSSTTTT
DDDDOOOOMMMMAAAAIIIINNNN
VVVVeeeennnnddddoooorrrr
MMMMOOOODDDDBBBBUUUUSSSS oooovvvveeeerrrr IIIIPPPP
TTTTCCCCPPPP PPPPoooorrrrtttt 555500002222
PPPPrrrreeeeffff IIIIPPPP 0000....0000....0000....0000
Pages available in the “ABOUT” screen to confirm Network settings.
Data Logging Pages
The DSE data logging pages show information depending on the configuration in the module.
Data Logging
Log to internal memory
Logging active
No USB drive present
Inserting a USB drive to the host USB will display the following change to the page.
Data Logging
Log to USB drive
Logging active
Do not remove USB drive
NOTE:- Removal of the USB drive should only be carried out using the following method.
Press and hold the tick button until “Ok to remove USB drive” is displayed.
Data Logging
Log to USB drive
Logging active
Ok to remove USB drive
It is now safe to remove the USB drive.
This ensures the logging data file will save to memory complete and will not become corrupt.
Press down to view the next page.
Data Logging
Unique setting for each module
Location of stored data.
Internal module memory or external
USB memory.
If data logging is active or inactive
Remaining time available for logging
information.
xxxx hours xx minutes

66
Time remaining
xxxx h xx m
Press down to view the next page.
Data Logging
Memory remaining
xxxx
.
5.2.1 CAN ERROR MESSAGES
When connected to a suitable CAN engine the 8620 series controller displays alarm status messages
from the ECU.
Alarm
ECU Warning
Warning
Press to access the list of current active Engine DTCs (Diagnostic Trouble Codes).
Engine DTCs The code interpreted by the module shows on the display as a text message.
Additionally, the manufacturer’s Water Level code is shown.
Low
Xxx,xxx,xxx
NOTE: - For details on these code meanings, refer to the ECU instructions provided by the
engine manufacturer, or contact the engine manufacturer for further assistance.
NOTE: - For further details on connection to electronic engines please refer to Electronic
engines and DSE wiring. Part No. 057-004
Memory space remaining, this depends
what size memory drive is fitted (Max
16Gb) or allocated internal (2Mb)
memory left available.
Type of alarm that is triggered in the
DSE module (i.e. Warning or
Shutdown)

67
5.3 VIEWING THE EVENT LOG
The DSE8600 series modules maintain a log of past alarms and/or selected status changes.
The log size has been increased in the module over past module updates and is always subject to
change. At the time of writing, the 86xx series log is capable of storing the last 250 log entries.
Under default factory settings, the event log only includes shutdown and electrical trip alarms logged
(The event log does not contain Warning alarms); however, this is configurable by the system
designer using the DSE Configuration Suite software.
Example showing the
possible configuration of the
DSE8600 series event log
(DSE Configuration Suite
Software)
This also shows the factory
settings of the module (Only
shutdown alarms and the
mains status are logged).
Once the log is full, any subsequent shutdown alarms will overwrite the oldest entry in the log.
Hence, the log will always contain the most recent shutdown alarms.
The module logs the alarm, along with the date and time of the event (or engine running hours if
configured to do so).
If the module is configured and connected to send SMS text
To view the event log, repeatedly press the next page button until the LCD screen displays the
Event log :
Event log 1
Oil Pressure Low
Shutdown
12 Sep 2007, 08:25:46
This is event 1.
Press down to view the next most recent shutdown alarm:
Continuing to press down cycles through the past alarms after which the display shows the
most recent alarm and the cycle begins again.
To exit the event log and return to viewing the instruments, press the next page button to select
the next instrumentation page.

5.4 USER CONFIGURABLE INDICATORS
These LEDs can be configured by the user to indicate any one of 100+
different functions based around the following:-
· Indications - Monitoring of a digital input and indicating associated
functioning user’s equipment - Such as Battery Charger On or Louvres
Open, etc.
· WARNINGS and SHUTDOWNS - Specific indication of a particular
warning or shutdown condition, backed up by LCD indication - Such as
Low Oil Pressure Shutdown, Low Coolant level, etc.
· Status Indications - Indication of specific functions or sequences
derived from the modules operating state - Such as Safety On, Pre-heating,
Panel Locked, Generator Available, etc.
68
User configurable LEDs

69
6 OPERATION
6.1 CONTROL
Control of the DSE8620 module is via push buttons mounted on the front of the module with
STOP/RESET, MANUAL, TEST, AUTO, ALARM MUTE and START functions. For normal operation,
these are the only controls which need to be operated. The smaller push buttons are used to access
further information such as mains voltage or to change the state of the load switching devices when in
manual mode. Details of their operation are provided later in this document.
The following descriptions detail the sequences followed by a module containing the standard ‘factory
configuration’. Always refer to your configuration source for the exact sequences and timers observed
by any particular module in the field.
CAUTION: - The module may instruct an engine start event due to external influences. Therefore, it is
possible for the engine to start at any time without warning. Prior to performing any maintenance on the
system, it is recommended that steps are taken to remove the battery and isolate supplies.
NOTE: -PLC Functionality. This control module has PLC functionality built in. This can
have change the standard operation when used.( Default configuration the no PLC is set. See
software manual for more information)

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6.2 CONTROL PUSH-BUTTONS
STOP/RESET
This push-button places the module into its Stop/reset mode. This will clear any alarm
conditions for which the triggering criteria have been removed. If the engine is running
and this push-button is operated, the module will automatically instruct the generator
contactor/breaker to unload the generator. The fuel supply will be removed and engine
will be brought to a standstill. Should a remote start signal be present while
operating in the mode, a remote start will not occur.
MANUAL
This push-button is used to allow manual control of the generator functions. Entering
this mode from another mode will initially not cause any change of operating state, but
allows further push-buttons to be used to control the generator operation. For
example, once in Manual mode it is possible to start the engine by using the ‘START’
push-button. If the engine is running, off-load in the Manual mode and a remote
start signal becomes present, the module will automatically instruct the generator
contactor/breaker device to place the generator on load. Should the remote start
signal then be removed the generator will remain on load until either the
‘STOP/RESET’ or ‘AUTO’ push-buttons are operated.
START
This push-button is used to start the engine. The module must first be placed in the
‘MANUAL’ mode of operation. The ‘START’ button should then be operated. The
engine will then automatically attempt to start. Should it fail on the first attempt it will
re-try until either the engine fires or the pre-set number of attempts have been made.
To stop the engine the ‘STOP/RESET’ button should be operated. It is also possible
to configure the module such that the start push-button must be held to maintain
engine cranking.
NOTE:- Different modes of operation are possible - Please refer to your configuration
source for details.
AUTO
This push-button places the module into its ‘Automatic’ mode. This mode allows the
module to control the function of the generator automatically. The module will monitor
the remote start input and once a start condition is signalled the set will be
automatically started and placed on load. If the starting signal is removed, the module
will automatically transfer the load from the generator and shut the set down observing
the stop delay timer and cooling timer as necessary. The module will then await the
next start event. For further details, please see the more detailed description of ‘Auto
Operation’ earlier in this manual.
Mute / Lamp Test
This button silences the audible alarm if it is sounding and illuminates all of the LEDs
as a lamp test feature.

Test
This button places the module into its ‘Test’ mode. This allows an on load test of the
generator.
Once in Test mode the module will respond to the start button, start the engine,
and run on load.
For further details, please see the more detailed description of ‘Test operation’
elsewhere in this document.
Transfer to mains
Operative in Manual Mode only
71
‘Normal’ breaker button control
· Allows the operator to transfer the load to the mains
· If the Generator is on load and mains is available the generator will
synchronise and parallel with the mains.
· If the Generator & mains are in parallel, the generator power will ramp off and
open the generator breaker.
‘Alternative’ breaker button control ( Synchronises when necessary )
· If generator is on load, transfers the load to the mains.
· If mains is on load, opens the mains breaker
· If generator and mains are off load, closes the mains breaker.
Transfer to generator
Operative in Manual Mode only
‘Normal’ breaker button control
· Allows the operator to transfer the load to the generator
· If the mains is on load and the generator is available the generator will
synchronise and parallel with the mains.
· If the mains & generator are in parallel the generator power will ramp up and
open the mains breaker.
‘Alternative’ breaker button control ( Synchronises when necessary )
· If mains is on load, transfers the load to the generator.
· If generator is on load, opens the generator breaker
· If generator and mains are off load, closes the generator breaker
Menu navigation
Used for navigating the instrumentation, event log and configuration screens.
For further details, please see the more detailed description of these items elsewhere
in this manual
The following description details the sequences followed by a module containing the standard ‘factory
configuration’.
Remember that if you have purchased a completed generator set or control panel from your
supplier, the module’sconfiguration will probably have been changed by them to suit their particular
requirements.
Always refer to your configuration source for the exact sequences and timers observed by any
particular module in the field.

6.3 DUMMY LOAD / LOAD SHEDDING CONTROL
This feature may be enabled by the system designer to ensure the loading on the generator is kept to
a nominal amount. If the load is low, ‘dummy loads’ (typically static load banks) can be introduced to
ensure the engine is not too lightly loaded. Conversely as the load increases towards the maximum
rating of the set, non-essential loads can be shed to prevent overload of the generator.
72
6.2.1 DUMMY LOAD CONTROL
The dummy load control feature (if enabled) allows for a maximum of five dummy load steps.
When the set is first started, all configured Dummy Load Control outputs are de-energised.
Once the generator is placed onto load, the generator loading is monitored by the Dummy Load
Control scheme.
If the generator loading falls below the Dummy Load Control Trip setting (kW), the Dummy Load
Control Trip Delay is displayed on the module display. If the generator loading remains at this low level
for the duration of the timer, the first Dummy Load Control output is energised. This is used to
energise external circuits to switch in (for instance) a static load bank.
The generator loading has now been increased by the first dummy load. Again the generator loading is
monitored. This continues until all configured Dummy Load Control outputs are energised.
Should the generator loading rise above the Dummy Load Return level, the Dummy Load Return Delay
begins. If the loading remains at these levels after the completion of the timer, the ‘highest’ active
Dummy
Load Control
output is de-energised. This continues until all Dummy Load Control outputs have been de-energised.
Example screen shot of Dummy Load Control setup in the DSE Configuration Suite
6.2.2 LOAD SHEDDING CONTROL
The Load Shedding Control feature (if enabled) allows for a maximum of five load shedding steps.
When the generator is about to take load, the configured number of Load Shedding Control Outputs at
Startup will energise. This configurable setting allows (for instance) certain loads to be removed from
the generator prior to the set’s load switch being closed. This can be used to ensure the initial loading
of the set is kept to a minimum, below the Load Acceptance specification of the generating set.
The generator is then placed on load. The Load Shedding Control scheme begins.
When the load reaches the Load Shedding Trip level the Trip Delay timer will start. If the generator
loading is still high when the timer expires, the first Load shedding Control output will energise. When
the load has been above the trip level for the duration of the timer the ‘next’ Load shedding Control
output will energise and so on until all Load Shedding Control outputs are energised.
If at any time the load falls back below the Load Shedding Return level, the Return Time will start. If
the load remains below the return level when the timer has expired the ‘highest’ Load Shedding Control
output that has been energised will be de-energised. This process will continue until all outputs have
been de-energised.
When the set enters a stopping sequence for any reason the Load Shedding control’ outputs will de-energise
at the same time as the generator load switch is signalled to open.
Details can be found in the 057-119 8600 Configuration suite software Manual.

6.4 STOP MODE
STOP mode is activated by pressing the button.
In STOP mode, the module will remove the generator from load (if necessary) before stopping the
engine if it is already running.
If the engine does not stop when requested, the FAIL TO STOP alarm is activated (subject to the
setting of the Fail to Stop timer). To detect the engine at rest the following must occur :
· Engine speed is zero as detected by the Magnetic Pickup or CANbus ECU (depending upon
73
module variant).
· Generator frequency must be zero.
· Oil pressure switch must be closed to indicate low oil pressure (MPU version only)
When the engine has stopped, it is possible to send configuration files to the module from DSE
Configuration Suite PC software and to enter the Front Panel Editor to change parameters.
Any latched alarms that have been cleared will be reset when STOP mode is entered.
The engine will not be started when in STOP mode. If remote start signals are given, the input is
ignored until AUTO mode is entered.
When configured to do so, When left in STOP mode for five minutes with no presses of the fascia
buttons, the module enters low power mode. To ‘wake’ the module, press the button or any other
fascia control button.
Sleep mode configuration
in the DSE Configuration
Suite Software

74
6.4.1 ECU OVERRIDE
NOTE:- ECU Override function is only applicable when the controller is configured for a
CAN engine.
NOTE:- Depending upon system design, the ECU may be powered or unpowered when the
module is in STOP mode. ECU override is only applicable if the ECU is unpowered when in
STOP mode.
When the ECU powered down (as is normal when in STOP mode), it is not possible to read the
diagnostic trouble codes or instrumentation. Additionally, it is not possible to use the engine
manufacturers’ configuration tools.
As the ECU is usually unpowered when the engine is not running, it must be turned on manually as
follows :
· Select STOP mode on the DSE controller.
· Press and hold the START button to power the ECU. As the controller is in STOP mode,
the engine will not be started.
.
· The ECU will remain powered 2 minutes after the START button is released.
This is also useful if the engine manufacturer’s tools need to be connected to the engine, for instance to
configure the engine as the ECU needs to be powered up to perform this operation.

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6.5 AUTOMATIC OPERATION
6.5.1 MAINS FAILURE
This mode of operation is used to ensure continuity of supply to critical loads during a mains failure
condition. This is the normal mode of operation when installed on a standby generator.
NOTE: If a digital input configured to panel lock is active, changing module modes will not
be possible. Viewing the instruments and event logs is NOT affected by panel lock.
This mode is activated by pressing the pushbutton. An LED indicator beside the button will
illuminate to confirm this operation.
Auto mode will allow the generator to operate fully automatically, starting and stopping as required
with no user intervention.
Should the mains (utility) supply fall outside the configurable limits for longer than the period of the
mains transient delay timer, the mains (utility) available GREEN indicator LED extinguishes.
To allow for short term mains supply transient conditions, the Start Delay timer is initiated. After this
delay, if the pre-heat output option is selected then the pre-heat timer is initiated and the corresponding
auxiliary output (if configured) will energise.
NOTE: - If the mains supply returns within limits during the Start Delay timer, the unit will return to a
stand-by state.
After the above delays have expired the Fuel Solenoid (or enable ECU output if configured) is
energised, then one second later, the Starter Motor is engaged.
NOTE:- If the unit has been configured for CAN Bus, compatible ECU’s will receive the start command
via CAN Bus. Refer to the Manual CAN and DSE Wiring. Part No. 057-004 for more information on utilising
DSE modules with electronically controlled engines.
The engine is cranked for a pre-set time. If the engine fails to fire during this cranking attempt then the
starter motor is disengaged for the pre-set rest period. Should this sequence continue beyond the set
number of attempts, the start sequence will be terminated and Fail to Start fault will be displayed.
Alarm
Shutdown
Fail to start
When the engine fires, the starter motor is disengaged and locked out at a pre-set frequency
measured from the alternator output. Alternatively, a Magnetic Pickup mounted on the flywheel housing
can be used for speed detection (This is selected by PC using the 86xx series configuration software).
Rising oil pressure can also be used to disconnect the starter motor; however it cannot be used for
underspeed or overspeed detection.
NOTE:- If the unit has been configured for CAN Bus, speed sensing is via CAN Bus.

After the starter motor has disengaged, the Safety On timer is activated, allowing Oil Pressure, High
Engine Temperature, Under-speed, Charge Fail and any delayed Auxiliary fault inputs to stabilise
without triggering the fault.
6.5.1 ENGINE RUNNING
Once the engine is running, the Warm Up timer, if selected, begins, allowing the engine to stabilise
before accepting the load.
After the Warm-up timer has expired then the module will transfer the load from the failed mains
supply to the generator output. It will observe the following sequence. The Mains Contactor/Breaker
will be instructed to open and after a short delay (transfer delay), the Generator Contactor/Breaker
will be instructed to close.
The generator will then supply the requirements of the load.
NOTE:-A load transfer will not be initiated until the Oil Pressure has risen. This prevents excessive
76
wear on the engine.
When the mains supply returns, the Stop delay timer is initiated. Once it has expired, the set is
synchronised and paralleled with the mains supply. The system remains in this condition until expiry of
the Parallel run timer. Once this has expired, the module will ramp the remaining load from the
generator to mains supply. The Generator Contact/Breaker will open and the Cooling timer is then
initiated, allowing the engine a cooling down period off load before shutting down. Once the Cooling
timer expires, the Fuel Solenoid is de-energised, bringing the generator to a stop.
During the parallel run, the module can be configured to either run at a fixed level output, or to maintain
an output in relation to the load level on the mains. For full details of these mode please refer to the
manual ‘The Guide to sync and load share Pt1’
Should the mains supply fall outside limits once again the set will return on load.
NOTE: - When synchronising is enabled, the mains supply is checked before closing any load switching
device. If the supply is live, synchronising will take place before any closure takes place.
NOTE: - Synchronising can be disabled if the application does not require this function. Contact your
genset supplier in the first instance for further details.

6.5.2 REMOTE START IN ISLAND MODE
This mode of operation is used to start the set in response to an external start requirement from
another device. It may also be used to provide continuity of supply during expected black out events.
NOTE:- If a digital input configured to panel lock is active, changing module modes will not be
possible. Viewing the instruments and event log are NOT affected by panel lock. If panel lock is active
the Panel lock indicator (if configured) illuminates.
If the remote start in island mode input activates, the Remote Start Active indicator (if configured)
illuminates.
To allow for false remote start signals, the Start Delay timer is initiated. After this delay, if the pre-heat
output option is selected then the pre-heat timer is initiated and the corresponding auxiliary output (if
configured) will energise.
NOTE:- If the Remote Start signal is removed during the Start Delay timer, the unit will return to a
77
stand-by state.
After the above delays, the Fuel Solenoid (or enable ECU output if configured) is energised, and then
one second later, the Starter Motor is engaged.
NOTE: - If the unit has been configured for CAN Bus, compatible ECU’s will receive the start command
Alarm
Shutdown
Fail to start
can be used for speed detection (). Rising oil pressure can also be used to disconnect the starter
motor; however, it cannot be used for underspeed or overspeed detection.
NOTE: - If the unit is configured for CAN Bus, speed sensing is via CAN Bus.

Once the engine is running, the Warm Up timer, if selected is initiated, allowing the engine to stabilise
NOTE: - A load transfer will not be initiated until the Oil Pressure has risen. This prevents excessive
78
wear on the engine.
The Generator will first be instructed to synchronise with the mains supply before closing the
Generator Contact/Breaker and transferring load from mains to generator until the generator is
supplying the required amount of power (adjustable using DSE Configuration Suite software).
When the supplies have been in parallel for the duration of the parallel run time, the load will ramp off
the mains supply and onto the generator. The Mains Contactor/Breaker will be instructed to open.
When the remote start signal is removed, the Stop delay timer is initiated. Once it has expired, the set
is synchronised and paralleled with the mains supply.
The system remains in this condition until expiry of the Parallel run timer. Once this has expired, the
module will ramp the remaining load from the generator to mains supply.
Alternative Ramping Scheme- The controller holds the power until the end of the Parallel run timer
before initiating any ramping off.
The Generator Contact/Breaker will open and the Cooling timer is then initiated, allowing the engine
a cooling down period off load before shutting down.
Once the Cooling timer expires, the Fuel Solenoid is de-energised, bringing the generator to a stop.
generating set supplier in the first instance for further details.
NOTE: - The internal ‘Scheduler’ can be configured to operate the system in the same manner as
described for the Remote start input. Please refer to the 86xx Configuration Software manuals for full
details on the feature.

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6.5.3 REMOTE START ON LOAD
This mode of operation is used to start the set in response to rising load levels on the mains supply (if
configured).
NOTE: - If a digital input configured to panel lock is active, changing module modes will not be
possible. Viewing the instruments and event log are NOT affected by panel lock. If panel lock is active
Should the load level on the mains supply exceed a pre-set level the module will initiate a start
sequence.
To allow for short duration load surges, the Start Delay timer is initiated. After this delay, if the pre-heat
output option is selected then the pre-heat timer is initiated and the corresponding auxiliary output
(if configured) will energise.
NOTE: - If the load level returns below the pre-set level during the Start Delay timer, the unit will
return to a stand-by state.
After the above delays, the Fuel Solenoid (or enable ECU output if configured) is energised, and then
one second later, the Starter Motor is engaged.
Alarm
Shutdown
Fail to start
can be used for speed detection (This is selected by PC using the DSE configuration Suite software).
Rising oil pressure can also be used to disconnect the starter motor; however, it cannot be used for

After the Warm-up timer has expired then the module will transfer the load from the mains supply to
the generator output. It will observe the following sequence.
The Generator will first be instructed to synchronise with the mains supply. Once these are matched,
the Generator Contact/Breaker will be instructed to close.
The load will then be ramped from the Mains to the appropriate level on the generator.
NOTE: - A load transfer will not be initiated until the Oil Pressure has risen. This prevents excessive
80
wear on the engine.
Advanced Ramping Scheme - When configured the breaker closes and the Generator power is held until
the end of the timer before ramping off
When the remote start on load input is removed, the Stop delay timer is initiated. Once this timer has
expired, the module will ramp the load from the generator to mains supply. The Generator
Contact/Breaker will open and the Cooling timer is then initiated, allowing the engine a cooling down
period off load before shutting down. Once the Cooling timer expires, the Fuel Solenoid is de-energised,
bringing the generator to a stop.
an output in relation to the load level on the mains.
NOTE: - The load level mode of operation relies on a Current Transformer (CT) fitted to the mains feed
of the system. This is then used for measurement of the mains current used in the load level calculations.

81
6.6 MANUAL OPERATION
Manual mode is used to allow the operator to control the operation of the generator, and to provide
fault finding and diagnostic testing of the various operations normally performed during Automatic mode
operation.
possible. Viewing the instruments and event logs and event log is NOT affected by panel lock. If
panel lock is active the Panel lock indicator (if configured) illuminates.
MANUAL, mode is selected by pressing the pushbutton. An LED besides the button will
illuminate to confirm this operation. When the button is operated, the module will initiate the start
sequence.
NOTE: - There is no Start Delay in this mode of operation.
If the pre-heat output option has been selected, this timer will be initiated and the auxiliary output
selected energised.
After the above delay, the Fuel Solenoid (or ECU output if configured) is energised, and then one
second later, the Starter Motor is engaged.
NOTE:- If the unit is configured for CAN Bus, compatible ECU’s will receive the start command via CAN
Bus. Refer to the Manual CAN and DSE Wiring. Part No. 057-004 for more information on utilising DSE
modules with electronically controlled engines.
number of attempts, the start sequence will be terminated and Fail to Start will be displayed.
Alarm
Shutdown
Fail to start
measured from the Alternator output. Alternatively, a Magnetic Pickup mounted on the flywheel housing
can be used for speed detection (This is selected by PC using the 5xxx series configuration software).
Rising oil pressure can also be used to disconnect the starter motor; however, it cannot be used for
Once the engine is running, the Warm Up timer (if selected) is initiated, allowing the engine to stabilise
before it can be loaded. Once the warm up timer has expired, the generator is then available to go on
load and the Generator Available LED will illuminate on the front panel.

82
The generator will run off load unless:
1. The mains supply fails,
2. A Remote Start on load signal is applied, or an on-load run is configured in the scheduler.
3. The Close Generator button is pressed.
If any of the above signals are received, the generator is synchronised and paralleled with the mains
supply (if available).
Parallel operation:
· If the Close Generator button is pressed again while in parallel, then the module will transfer
the load fully to the generators, removing the load from the mains supply. This will be achieved by
ramping the load from the parallel operating level to the generator. The Mains Contactor/Breaker
will then be opened. Pressing the Close Mains button will cause the module to re-synchronise
the generator with the mains supply and then return to parallel operation.
· If the Close Mains button is pressed while in parallel, the module will open the generator load
switching device, transferring the load fully to the mains supply.
If Auto mode is selected and the mains supply is healthy, and the remote start on load signal not
active, and the scheduler is not calling for a run, then the Return Delay Timer will start.
Once this has expired then the module will exit parallel operation and will ramp the load back to the
mains supply. It will then open the Generator Contactor/Breaker. The generator will then run off load
allowing the engine a cooling period.
Selecting STOP (O) de-energises the FUEL SOLENOID, bringing the generator to a stop.
WARNING: - Operation of the STOP button in any mode will stop the generator operation and return
the load switching system to a safe state. This operation may lead to loss of supply to the load. It is
recommended that the STOP button is only operated once the generator is OFF LOAD and the mains is
supplying the load.
genset supplier in the first instance for further details. If synchronising is disabled the system will always
perform an open transition when switching the load from the mains to the generator or when returning to
the mains. The parallel run stages of the sequence are not used when operating in this way.

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6.7 TEST OPERATION
Test operation is used to perform a full on load test sequence to allow for diagnosis of faults.
Alternatively, it may also be used to provide continuity of supply during expected black out events, peak
lopping or peak shaving during high tariff periods.
possible. Viewing the instruments and event log is NOT affected by panel lock. If panel lock is active
TEST mode is initiated by pressing the pushbutton. An LED besides the button will illuminate to
confirm this operation. When the START button is operated, the module will initiate the start
sequence.
NOTE: - There is no Start Delay in this mode of operation.
If the pre-heat output option has been selected, this timer will initiate and the auxiliary output selected
will be energised.
After the above delay, the Fuel Solenoid (or ECU output if configured) is energised, and then one
second later, the Starter Motor is engaged.
number of attempts, the start sequence will be terminated and Fail to Start will be displayed.
Alarm
Shutdown
Fail to start
When the engine fires, the starter motor is disengaged and locked out at a pre-set frequency from the
Alternator output. Alternatively, a Magnetic Pickup mounted on the flywheel housing can be used for
speed detection (This is selected by PC using the DSE Configuration Suite software). Rising oil
pressure can also be used to disconnect the starter motor; however, it cannot be used for underspeed
or overspeed detection.
NOTE: - If the unit has been configured for CAN Bus speed sensing is via CAN Bus.

After the Warm-up timer has expired then the module will transfer the load from the mains supply to
the generator output. It will observe the following sequence.
The Generator will first be instructed to synchronise with the mains supply. Once these are matched
the Generator Contact/Breaker will be instructed to close.
The load will then be ramped from the Mains to the appropriate level on the generator.
It will remain in this state whilst in the TEST mode unless the configuration (Advanced Options-Test
mode) is configured for Run Mode=Island mode.
If the module has an active remote start in island mode input or the internal scheduler has been
configured for island mode then the parallel run time will activate. When this expires, the load will
ramp off the mains supply and onto the generator. The Mains Contactor/Breaker will be instructed to
open
NOTE:-A load transfer will not be initiated until the Oil Pressure has risen. This prevents excessive
84
wear on the engine.
The system will then remain in this mode of operation until a different mode is selected. It is
recommended that mode is used to cancel the TEST mode.
When mode is selected the Stop delay timer is initiated. Once it has expired, the set is
synchronised and paralleled with the mains supply. The system remains in this condition until expiry of
the Parallel run timer. Once this has expired the module will ramp the remaining load from the
generator to mains supply. The Generator Contact/Breaker will open and the Cooling timer is then
initiated, allowing the engine a cooling down period off load before shutting down. Once the Cooling
timer expires the Fuel Solenoid is de-energised, bringing the generator to a stop.
During the parallel run the module can be configured to either run at a fixed level output, or to maintain
NOTE:- When synchronising is enabled, the mains supply is checked before closing any load switching
NOTE:- Synchronising can be disabled if the application does not require this function. Contact your

Number of present alarms. This is alarm 1 of a
total of 2 present alarms
85
7 PROTECTIONS
When an alarm is present, the Audible Alarm will sound and the Common alarm LED if configured will
illuminate.
The audible alarm can be silenced by pressing the Mute button
The LCD display will jump from the ‘Information page’ to display the Alarm Page
Alarm 1/2
Warning
Low oil pressure
The LCD will display multiple alarms E.g. “High Engine Temperature shutdown”, “Emergency Stop” and
“Low Coolant Warning”. These will automatically scroll in the order that they occurred.
In the event of a warning alarm, the LCD will display the appropriate text. If a shutdown then occurs,
the module will again display the appropriate text.
Example:-
Alarm 1/2
Warning
Oil pressure Low
Alarm 2/2
Shutdown
Coolant Temperature High
The type of alarm. E.g. Shutdown or warning
The nature of alarm, e.g. Low oil pressure

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7.1 PROTECTIONS DISABLED
User configuration is possible to prevent Shutdown / Electrical Trip alarms from stopping the engine.
Under such conditions, Protections Disabled will appear on the module display to inform the operator of
this status.
This feature is provided to assist the system designer in meeting specifications for “Warning only”,
“Protections Disabled”, “Run to Destruction”, “War mode” or other similar wording.
When configuring this feature in the PC software, the system designer chooses to make the feature
either permanently active, or only active upon operation of an external switch. The system designer
provides this switch (not DSE) so its location will vary depending upon manufacturer, however it
normally takes the form of a key operated switch to prevent inadvertent activation. Depending upon
configuration, a warning alarm may be generated when the switch is operated.
The feature is configurable in the PC configuration software for the module. Writing a configuration to
the controller that has “Protections Disabled” configured, results in a warning message appearing on
the PC screen for the user to acknowledge before the controller’s configuration is changed. This
prevents inadvertent activation of the feature.
7.1.1 INDICATION / WARNING ALARMS
Under Indication or Warning alarms:
· The module operation is unaffected by the Protections Disabled feature. See sections entitled
Indications and Warnings elsewhere in this document.
7.1.2 SHUTDOWN / ELECTRICAL TRIP ALARMS
NOTE:- The EMERGENCY STOP input and shutdown alarm continues to operate even
when Protections Disabled has been activated.
Under Shutdown or Electrical Trip alarm conditions (excluding Emergency Stop):
· The alarm is displayed on the screen as detailed in the section entitled Shutdown alarms
elsewhere in this document.
· The set continues to run.
· The load switch maintains its current position (it is not opened if already closed)
· Shutdown Blocked also appears on the LCD screen to inform the operator that the
Protections Disabled feature has blocked the shutdown of the engine under the normally critical
fault.
· The ‘shutdown’ alarm is logged by the controllers Event Log (if configured to log shutdown
alarms) and logs that the Shutdown was prevented.

Display Reason
CAN ECU WARNING The engine ECU has detected a warning alarm and has informed the DSE module
of this situation. The exact error is also indicated on the module’s display and action
taken depending upon the setting for the DM1 signals
ECU SHUTDOWN The engine ECU has detected a shutdown alarm and has informed the DSE module
of this situation. The exact error is also indicated on the module’s display.
ECU DATA FAIL The module is configured for CAN operation and does not detect data on the engine
CAN datalink, the engine shuts down.
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7.1.3 CAN ALARMS
NOTE:- Please refer to the engine manufacturer’s documentation for Can error message
information.
CAN alarms are messages sent from the CAN ECU to the DSE controller and displayed as follows in
the below tables.
DM1 Signals. Messages from the CAN ECU that are configurable within the DSE module for:-
Warning, Electrical Trip, shutdown or None
Display Reason
Amber Warning The CAN ECU has detected a Amber warning.
Red Shutdown The CAN ECU has detected a Red Shutdown.
Malfunction The CAN ECU has detected a Malfunction message.
Protect The CAN ECU has detected a Protect message
Advanced CAN alarms Allows configuration of additional can messages from the engine ECU.
Display Reason
Water in Fuel The ECU has detected water in the fuel action taken is set by settings in advanced.
After Treatment The ECU has detected “After Treatment alarm” consult engine manufacturer for
details” action taken by DSE controller is set by settings in advanced
NOTE:- For CAN ECU error code meanings, refer to the ECU documentation provided by
the engine manufacturer, or contact the engine manufacturer for further assistance.

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7.2 INDICATIONS
Indications are non-critical and often status conditions. They do not appear on the LCD of the module
as a text message. However, an output or LED indicator can be configured to draw the operator’s
attention to the event.
Example
· Input configured for
indication.
· The LCD text will not
appear on the module
display but can be added
in the configuration to
remind the system
designer what the input is
used for.
· As the input is configured
to Indication there is no
alarm generated.
· LED Indicator to make
LED1 illuminate when
Digital Input A is active.
· The Insert Card Text
allows the system
designer to print an insert
card detailing the LED
function.
· Sample showing operation
of the LED.

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7.3 WARNINGS
Warnings are non-critical alarm conditions and do not affect the operation of the generator system,
they serve to draw the operators attention to an undesirable condition.
Example
Alarm 1/1
Charge Failure
Warning
In the event of an alarm the LCD will jump to the alarms page, and scroll through all active warnings
and shutdowns.
By default, warning alarms are self-resetting when the fault condition is removed. However enabling ‘all
warnings are latched’ will cause warning alarms to latch until reset manually. This is enabled using the
8600 series configuration suite in conjunction with a compatible PC.
Display Reason
AUXILIARY INPUTS If an auxiliary input has been configured as a warning the appropriate LCD
message will be displayed and the COMMON ALARM LED will illuminate.
CHARGE FAILURE The auxiliary charge alternator voltage is low as measured from the W/L terminal.
BATTERY UNDER
VOLTAGE
The DC supply has fallen below the low volts setting level for the duration of the low
battery volts timer
BATTERY OVER VOLTAGE The DC supply has risen above the high volts setting level for the duration of the
high battery volts timer
FAIL TO STOP The module has detected a condition that indicates that the engine is running when
it has been instructed to stop.
NOTE:- ‘Fail to Stop’ could indicate a faulty oil pressure sensor or switch - If the
engine is at rest check oil sensor wiring and configuration.
FUEL USAGE Indicates the amount of fuel measured by the fuel level sensor is in excess of the
Fuel Usage alarm settings. This often indicates a fuel leak or potential fuel theft.
FAILED TO SYNCHRONISE, if the module cannot synchronise within the time allowed by the Synchronising timer
a warning is initiated. The LCD will indicate ‘FAILED TO SYNC’ and the COMMON
ALARM LED will illuminate
AUXILIARY INPUTS Auxiliary inputs can be user configured and will display the message as written by
the user.
LOW FUEL LEVEL The level detected by the fuel level sensor is below the low fuel level setting.
CAN ECU ERROR The engine ECU has detected a warning alarm and has informed the DSE module
of this situation. The exact error is also indicated on the module’s display.
kW OVERLOAD The measured Total kW is above the setting of the kW overload warning alarm
EARTH FAULT The measured Earth Fault Current has been in excess of the earth fault trip and has
surpassed the IDMT curve of the Earth Fault alarm.
NEGATIVE PHASE
SEQUENCE
Indicates ‘out of balance’ current loading of the generator.
Sometimes also called Negative Sequence Current or Symmetry Fault
MAINTENANCE DUE Indicates that the maintenance alarm has triggered. A visit is required by the
Generator service company.
MAINS REVERSE POWER if the 8620 detects that the generator is exporting more than the configured limit,
the LCD will indicate ‘MAINS REVERSE POWER’ and the COMMON ALARM LED
will flash
LOADING VOLTAGE NOT
REACHED
Indicates that the generator voltage is not above the configured loading voltage.
The generator will not take load when the alarm is present after the safety timer.
LOADING FREQUENCY Indicates that the generator frequency is not above the configured loading

NOT REACHED frequency. The generator will not take load when the alarm is present after the
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safety timer.
PROTECTIONS DISABLED Shutdown and electrical trip alarms can be disabled by user configuration. In this
case, Protections Disabled will appear on the module display; The alarm text is
displayed but the engine will continue to run. This is ‘logged’ by the module to
allow DSE Technical Staff to check if the protections have been disabled on the
module at any time. This feature is available from V4 onwards.
LOW OIL PRESSURE The module detects that the engine oil pressure has fallen below the low oil
pressure pre-alarm setting level after the Safety On timer has expired.
ENGINE HIGH TEMPERATURE The module detects that the engine coolant temperature has exceeded the high
engine temperature pre-alarm setting level after the Safety On timer has expired.
ENGINE LOW TEMPERATURE The module detects that the engine coolant temperature has fallen below the
high engine temperature pre-alarm setting level.
OVERSPEED The engine speed has risen above the overspeed pre alarm setting
UNDERSPEED The engine speed has fallen below the underspeed pre alarm setting
GENERATOR OVER
FREQUENCY
The generator output frequency has risen above the pre-set pre-alarm setting.
GENERATOR UNDER
FREQUENCY
The generator output frequency has fallen below the pre-set pre-alarm setting
after the Safety On timer has expired.
GENERATOR OVER VOLTAGE The generator output voltage has risen above the pre-set pre-alarm setting.
GENERATOR UNDER
VOLTAGE
The generator output voltage has fallen below the pre-set pre-alarm setting after
the Safety On timer has expired.
INSUFFICIENT CAPACITY f the generator reach full load when they are in parallel with the mains (utility).
The LCD will indicate ‘INSUFFICIENT CAPACITY’ and the COMMON ALARM
LED will illuminate.
MAINS FAILED TO CLOSE If the mains breaker fails to close, a warning is initiated. The LCD will indicate
‘MAINS FAILED TO CLOSE’ and the COMMON ALARM LED will illuminate.
MAINS FAILED TO OPEN
If the mains breaker fails to open, a warning is initiated. The LCD will indicate
‘MAINS FAILED TO OPEN’ and the COMMON ALARM LED will illuminate.
ECU WARNING The engine ECU has detected a warning alarm and has informed the DSE
module of this situation. The exact error is also indicated on the module’s display.
If the module is configured for, CAN and receives an “error” message from the engine control unit, ‘Can
ECU Warning” is shown on the module’s display and a warning alarm is generated.
7.4 HIGH CURRENT WARNING ALARM
GENERATOR HIGH CURRENT, if the module detects a generator output current in excess of the pre-set
trip a warning alarm initiates. The module shows Alarm Warning High Current. If this high current
condition continues for an excess period, then the alarm escalates to a shutdown condition. For further
details of the high current alarm, please see High Current Shutdown Alarm.
By default, High Current Warning Alarm is self-resetting when the overcurrent condition is removed.
However enabling ‘all warnings are latched’ will cause the alarm to latch until reset manually. This is
enabled using the 8600 series configuration suite in conjunction with a compatible PC.

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7.5 SHUTDOWNS
NOTE:- Shutdown and Electrical Trip alarms can be disabled by user configuration. See
the section entitled Protections Disabled elsewhere in this document.
Shutdowns are latching alarms and stop the Generator. Clear the alarm and remove the fault then
press Stop/Reset to reset the module.
Example
Alarm 1/1
Oil Pressure Low
Shutdown
NOTE:- The alarm condition must be rectified before a reset will take place. If the alarm
condition remains, it will not be possible to reset the unit (The exception to this is the Low Oil
Pressure alarm and similar ‘active from safety on’ alarms, as the oil pressure will be low with
the engine at rest).
Display Reason
EARTH FAULT The measured Earth Fault Current has been in excess of the earth
fault trip and has surpassed the IDMT curve of the Earth Fault
alarm.
FAIL TO START The engine has not fired after the preset number of start attempts
EMERGENCY STOP The emergency stop button has been depressed. This a failsafe
(normally closed to battery positive) input and will immediately stop
the set should the signal be removed.
Removal of the battery positive supply from the emergency stop
input will also remove DC supply from the Fuel and Start outputs of
the controller.
NOTE:- The Emergency Stop Positive signal must be
present otherwise the unit will shutdown.
LOW OIL PRESSURE The engine oil pressure has fallen below the low oil pressure trip
setting level after the Safety On timer has expired.
ENGINE HIGH TEMPERATURE The engine coolant temperature has exceeded the high engine
temperature trip setting level after the Safety On timer has expired.
FUEL USAGE Indicates the amount of fuel measured by the fuel level sensor is in
excess of the Fuel Usage alarm settings. This often indicates a fuel
leak or potential fuel theft.
PHASE ROTATION The phase rotation is measured as being different to the configured
direction.
OVERSPEED The engine speed has exceeded the pre-set trip
NOTE:-During the start-up sequence, the overspeed trip
logic can be configured to allow an extra trip level margin. This
is used to prevent nuisance tripping on start-up - Refer to the
8000 series configuration software manual under heading
‘Overspeed Overshoot’ for details.

UNDERSPEED The engine speed has fallen below the pre-set trip after the Safety
On timer has expired.
Display Reason
GENERATOR OVER FREQUENCY The generator output frequency has risen above the preset level
GENERATOR UNDER FREQUENCY The generator output frequency has fallen below the preset level
GENERATOR OVER VOLTAGE The generator output voltage has risen above the preset level
GENERATOR UNDER VOLTAGE The generator output voltage has fallen below the preset level
OIL PRESSURE SENSOR OPEN
The oil pressure sensor is detected as not being present (open
CIRCUIT
circuit)
AUXILIARY INPUTS An active auxiliary input configured as a shutdown will cause the
engine to shut down. The display shows the text as configured by
the user.
LOSS OF SPEED SIGNAL The speed signal from the magnetic pickup is not being received by
the DSE controller.
ECU DATA FAIL The module is configured for CAN operation and does not detect
data on the engine Can datalink, the engine shuts down.
ECU SHUTDOWN The engine ECU has detected a shutdown alarm and has informed
the DSE module of this situation. The exact error is also indicated on
the module’s display.
kW OVERLOAD The measured Total kW is above the setting of the kW overload
shutdown alarm
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NEGATIVE PHASE SEQUENCE
(DSE7000 series V2.0 or above
only)
Indicates ‘out of balance’ current loading of the generator.
Sometimes also called Negative Sequence Current or Symmetry
Fault
MAINTENANCE DUE
(DSE7000 series V2.1 or above
only)
Indicates that the maintenance alarm has triggered. A visit is
required by the Generator service company.
GENERATOR HIGH CURRENT A High Current condition has continued for an excess period, then
the alarm escalates to either a shutdown or electrical trip condition
(depending upon module configuration). For further details of the
high current alarm, please see High Current Shutdown / Electrical
Trip Alarm.
LOADING VOLTAGE NOT
REACHED
Indicates that the generator voltage is not above the configured
loading voltage after the safety timer. The generator will shutdown.
LOADING FREQUENCY NOT
REACHED
Indicates that the generator frequency is not above the configured
loading frequency after the safety timer. The generator will
shutdown.
PROTECTIONS DISABLED Shutdown and electrical trip alarms can be disabled by user
configuration. In this case, Protections Disabled will appear on the
module display; The alarm text will be displayed but the engine will
continue to run. This is ‘logged’ by the module to allow DSE
Technical Staff to check if the protections have been disabled on the
module at any time. This feature is available from V4 onwards.

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7.6 ELECTRICAL TRIPS
NOTE:- Shutdown and Electrical Trip alarms can be disabled by user configuration. See
the section entitled Protections Disabled elsewhere in this document.
Electrical trips are latching and stop the Generator but in a controlled manner. On initiation of the
electrical trip condition the module will de-energise the ‘Close Generator’ Output to remove the load
from the generator. Once this has occurred the module will start the Cooling timer and allow the engine
to cool off-load before shutting down the engine. The alarm must be accepted and cleared, and the
fault removed to reset the module.
Example
Alarm 1/1
Generator Current High
Electrical Trip
Electrical trips are latching alarms and stop the Generator. Remove the fault then press Stop/Reset
to reset the module.
Display Reason
GENERATOR HIGH CURRENT If a generator output in excess of the high current alarm point, a warning
alarm occurs. If this high current condition continues for an excess period,
then the alarm escalates to either a shutdown or electrical trip condition
(depending upon module configuration). For further details of the high
current alarm, please see High Current Shutdown / Electrical Trip Alarm.
AUXILIARY INPUTS If an auxiliary input configured as an electrical trip is active, the user
configured message shows on the display.
kW OVERLOAD The measured Total kW is above the setting of the kW overload Electrical
Trip alarm
EARTH FAULT The measured Earth Current is above the setting of the Earth fault alarm.
FAILED TO SYNCHRONISE If the module cannot synchronise within the time allowed by the
Synchronising timer a warning is initiated. The LCD will indicate ‘FAILED
TO SYNC’ and the COMMON ALARM LED will illuminate
MAINS REVERSE POWER if the module detects a mains reverse power in excess of the pre-set trip
level and time delay, an electrical trip is initiated. The LCD will indicate
‘MAINS REVERSE POWER’ and the COMMON ALARM LED will flash.
NEGATIVE PHASE SEQUENCE Indicates ‘out of balance’ current loading of the generator.
Sometimes also called Negative Sequence Current or Symmetry Fault
FUEL USAGE Indicates the amount of fuel used is in excess of the Fuel Usage alarm
settings. This often indicates a fuel leak or potential fuel theft.
LOADING VOLTAGE NOT REACHED Indicates that the generator voltage is not above the configured loading
voltage after the safety timer. The generator will shutdown.
LOADING FREQUENCY NOT REACHED Indicates that the generator frequency is not above the configured loading
frequency after the safety timer. The generator will shutdown.
PROTECTIONS DISABLED Shutdown and electrical trip alarms is disabled by user configuration. In
this case, Protections Disabled will appear on the module display; The
alarm text is displayed but the engine will continue to run. This is ‘logged’
by the module to allow DSE Technical Staff to check if the protections
have been disabled on the module at any time. This feature is available
from V4 onwards.
GENERATOR UNDER FREQUENCY The generator output frequency has fallen below the preset level

GENERATOR UNDER VOLTAGE The generator output voltage has fallen below the preset level
INSUFFICIENT CAPACITY If the module is configured for Mains CT and the load levels are so high
that the generator is unable to supply enough load to maintain the
configured mains level, insufficient capacity will be displayed and the
COMMON ALARM LED will flash. The generator will provide 100% of its
capacity and the loading on the mains will increase.
UNDERSPEED The engine speed has fallen below the underspeed setting
7.7 HIGH CURRENT SHUTDOWN / ELECTRICAL TRIP ALARM
The overcurrent alarm combines a simple warning trip level with a fully functioning IDMT curve for
thermal protection.
7.7.1 IMMEDIATE WARNING
If the Immediate Warning is enabled, the DSE8600 Series controller generates a warning alarm as
soon as the Trip level is reached. The alarm automatically resets once the generator loading current
falls below the Trip level (unless All Warnings are latched is enabled). For further advice, consult your
generator supplier.
7.7.2 IDMT ALARM
If the IDMT Alarm is enabled, the DSE8600 Series controller begins following the IDMT ‘curve’ when
the trip level is passed.
If the Trip is surpassed for an excess amount of time the IDMT Alarm triggers (Shutdown or Electric
trip as selected in Action).
High current shutdown is a latching alarm and stops the Generator.
Remove the fault then press Stop/Reset to reset the module.
High current electrical trip is a latching alarm and removes the generator from the load, before
stopping the Generator after the off load cooling timer.
Remove the fault then press Stop/Reset to reset the module.
The higher the overload, the faster the trip. The speed of the trip is dependent upon the fixed formula:
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T = t / ( ( IA / I T ) – 1 ) 2
Where: T is the tripping time in seconds
IA is the actual current of the most highly loaded line (L1 or L2 or L3)
IT is the delayed over-current trip point
t is the time multiplier setting and also represents the tripping time in seconds at twice full load (when IA / IT = 2).

Factory settings for the IDMT Alarm when used on a brushless alternator are as follows (screen
capture from the DSE Configuration Suite PC software :
These settings provide for normal running of the generator up to 100% full load. If full load is
surpassed, the Immediate Warning alarm is triggered, the set continues to run.
The effect of an overload on the generator is that the alternator windings begin to overheat; the aim of
the IDMT alarm is to prevent the windings being overload (heated) too much. The amount of time that
the set can be safely overloaded is governed by how high the overload condition is.
With typical settings as above, the tripping curve is followed as shown below.
This allows for overload of the set to the limits of the Typical Brushless Alternator whereby 110%
overload is permitted for 1 hour.
If the set load reduces, the controller then follows a cooling curve. This means that a second overload
condition may trip much sooner than the first as the controller knows if the windings have not cooled
sufficiently.
For further details on the Thermal damage curve of your alternator, you are referred to your alternator
manufacturer and generator supplier.
95
IT (Trip setting
value)
t (time multiplier)

7.8 EARTH FAULT SHUTDOWN / ELECTRICAL TRIP ALARM
When the module is suitably connected using the ‘Earth Fault CT’. The module measures Earth Fault
and can optionally be configured to generate an alarm condition (shutdown or electrical trip) when a
specified level is surpassed.
If the Earth Fault alarm is enabled, the controller begins following the IDMT ‘curve’. If the Trip is
surpassed for an excess amount of time the Alarm triggers (Shutdown or Electric trip as selected in
Action).
The higher the Earth Fault, the faster the trip. The speed of the trip is dependent upon the fixed formula
:
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T = K x 0.14 / ( ( I / Is)0.02 -1 )
Where: T is the tripping time in seconds (accurate to +/- 5% or +/- 50ms (whichever is the greater)
K is the time multiplier setting
I is the actual earth current measured
Is is the trip setting value
IS (Trip setting value)
K (time multiplier setting)
The settings shown in the example above are a screen capture of the DSE factory settings, taken from
the DSE Configuration Suite software.
7.9 SHORT CIRCUIT ALARM
If the Short Circuit alarm is enabled, the DSE8620 controller begins following the IDMT ‘curve’. If the
Trip is surpassed for an excess amount of time the Alarm triggers (Shutdown or Electrical trip as
selected in Action).
The higher the Short Circuit, the faster the trip. The speed of the trip is dependent upon the fixed
formula :
T = K x 0.14 / ( ( I / Is)0.02 -1 )
Where: T is the tripping time in seconds (accurate to +/- 5% or +/- 50ms (whichever is the greater)
K is the time multiplier setting
I is the actual current measured
Is is the trip setting value
IS (Trip setting value)
K (time multiplier setting)
The settings shown in the example above are a screen capture of the DSE factory settings, taken from
the DSE Configuration Suite software.

97
7.10 ROCOF / VECTOR SHIFT
When configured to run in parallel with the mains (utility) supply, the module monitors for ROCOF /
Vector shift trips according to the module’s configuration settings. This is included within the module
and will detect failure of the mains supply during parallel operation with the generator.
NOTE:- This protection operates only when in parallel with the mains supply and is disabled at all
other times.
Should either of these alarms operate, the module will perform either a controlled shutdown (electrical
trip) of the generator or will instigate the mains failure function. This operation must be manually reset :
1) Press button. The engine will stop if it is still running and the alarm is cleared.
2) Activate digital input configured to “Clear ROCOF/Vector shift” if this has been provided.
3) Press and button together and hold for 5 seconds. The ROCOF/Vector shift
instrument is displayed and all ‘peak hold’ values are reset, clearing the ROCOF/Vector shift
alarm.
For details on activating and configuring the ROCOF/Vector shift protection you are referred to the
DSE8620 software manual.
7.10.1 MAINS DECOUPLING TEST MODE
To aid the testing of the mains decoupling features in the controller, a special test mode is included.
This is activated by placing the module into STOP mode and enabling the ‘test mode’ in the module’s
front panel ‘running editor’, described elsewhere in this document.
This allows a ‘one shot’ test of the mains decoupling protection, enabling the Test Engineer to inject the
necessary test signals into the DSE control and timing the reaction from application of the signal to
activation of a DSE output configured to ‘combined mains decoupling’.
The actual testing of mains decoupling must be left to experienced engineers and is outside the scope
of DSE support.

98
8 SCHEDULER
DSE8600 Series contains an inbuilt exercise run scheduler, capable of automatically starting and
stopping the set. Up to 16 scheduled start/stop sequences can be configured to repeat on a 7-day or
28-day cycle.
Scheduled runs may be on load or off load depending upon module configuration.
Example
Screen capture from DSE Configuration
Suite Software showing the configuration of
the Exercise Scheduler.
In this example the set will start at 09:00 on
Monday and run for 5 hours, then start at
13:30 on Tuesday and run for 30 minutes.
8.1.1 STOP MODE
· Scheduled runs will not occur when the module is in STOP/RESET mode.
8.1.2 MANUAL MODE
· Scheduled runs will not occur when the module is in MANUAL mode.
· Activation of a Scheduled Run ‘On Load’ when the module is operating OFF LOAD in Manual
mode will have no effect, the set continues to run OFF LOAD
8.1.3 AUTO MODE
· Scheduled runs will operate ONLY if the module is in AUTO mode with no Shutdown or
Electrical Trip alarm present.
· If the module is in STOP or MANUAL mode when a scheduled run begins, the engine will not
be started. However, if the module is moved into AUTO mode during a scheduled run, the
engine will be called to start.
· Depending upon configuration by the system designer, an external input can be used to inhibit a
scheduled run.
· If the engine is running OFF LOAD in AUTO mode and a scheduled run configured to ‘On Load’
begins, the set is placed ON LOAD for the duration of the Schedule.

9 SYNCHROSCOPE OPERATION
99
Hz +2.9 V +0.2
Initial stage of Synchronising display will only show
the difference between the Mains Supply and the
Generator Output. Here the display is showing a
frequency mismatch of +2.9Hz - The genset
frequency is too high (indicated by the arrow) and
should be reduced. The voltage is +0.2 volts high, but
is within the limits set for synchronising.
Hz +0.9 V +0.2
Once the difference between the Mains and the
Generator frequency has been reduced, the
‘Synchroscope’ display will become active. The
moving bar will roll from one side to the other showing
the phase of the two supplies. The area in the centre
of the scope indicates the set limits for synchronising
to occur.
Hz -0.2 V +0.2
Synchronising will only occur when both the
Frequency and the voltage differences are within
acceptable limits - Indicated by ‘Tick’ marks on the
top of the display. Then the moving bar display will
show the phase difference. The engine speed will be
automatically adjusted, altering the phase, until the
moving bar enters the centre of the scope.
Hz -0.2 V +0.2
Once the Mains and generator supplies are
synchronised, the module will initiate a breaker close
signal to load the generator onto the Mains. Should
synchronism be broken the moving bar will pass out
of the synchronising window.
Note: - If the module display is showing the status page when the synchronising process begins, the
module will automatically switch to the Synchroscope page. The ramp progress will also be displayed on
the screen once paralleling has taken place.

100
10 COMMISSIONING
10.1 COMMISSIONING SCREENS
Commissioning screens are available to both aid the commissioning process and also to give additional
information about the synchronising and load sharing process.
These screens can be enabled and disabled in the module’s display editor.
10.1.1 SCREEN 1
L – L 0V kW 0.0 Average L-L Voltage and total kW
Amps 0A kVAr 0.0 Load on the set(s) and total kVAr
Pf ----- kW 0.0% Ramp level and % of full load kW
Gov 0.0% Avr 0.0% Gov and Avr % of Drive
10.1.2 SCREEN 2
Tgt 0.0% kW 0.0% Target % and total kW
Tgt 0.0% kVAr 0.0% Target % and total kVAr
Pf ----- Ramp 5.0% Ramp level and % of full load kW
Gov 0.0% Avr 0.0% Gov and Avr % of Drive
10.1.3 SCREEN 3
GL1 0A M L1 0A Generator L1 and Mains L1
Pf ----- Pf ---- Generator Power factor and Mains Power factor
kW 0.0 kW 0.0 Generator kW and Mains kW
kVAr 0.0 kVAr 0.0 Generator kVAr and Mains kW
10.1.4 SCREEN 4
MTgt 0.0% kW 0.0% Mains Target and mains actual kW
MTgt 00.0% kVAr 0.0% Mains Target and mains actual kW
Pf ----- Ramp 5.0% Power factor Ramp rate
Gov 0.0% Avr 0.0% Governor Avr
NOTE:- Some of the items may be removed from the commissioning screens if they are not applicable
to the module configuration.

11 FRONT PANEL CONFIGURATION
This configuration mode allows the operator limited customising of the way the module operates.
Use the module’s navigation buttons to traverse the menu and make value changes to the parameters:
Next page
Accept
101
Previous page
Increase value / next item
Decrease value / next item

11.1 ACCESSING THE MAIN FRONT PANEL CONFIGURATION EDITOR
Ensure the engine is at rest and the module is in STOP mode by pressing the Stop/Reset button.
Press the Stop/Reset and Info buttons simultaneously.
If a module security PIN has been set, the PIN number request is then shown :
Press , the first ‘#’ changes to ‘0’. Press (up or down) to adjust it to the correct value.
Press (right) when the first digit is correctly entered. The digit you have just entered will now show
‘#’ for security.
Repeat this process for the other digits of the PIN number. You can press (left) if you need to move
back to adjust one of the previous digits.
When is pressed after editing the final PIN digit, the PIN is checked for validity. If the number is not
correct, you must re-enter the PIN.
If the PIN has been successfully entered (or the module PIN has not been
enabled), the editor is displayed :
NOTE: The PIN number is not set by DSE when the module leaves the factory. If the module has a PIN
code set, this has been affected by your generator supplier who should be contacted if you require the
code. If the code has been ‘lost’ or ‘forgotten’, the module must be returned to the DSE factory to have
the module’s code removed. A charge will be made for this procedure.
NB - This procedure cannot be performed away from the DSE factory.
102

103
11.1.1 EDITING A PARAMETER
Enter the editor as described above.
Press the (left) or (right) buttons to cycle to the section you wish to view/change.
Press the (up or down) buttons to select the parameter you wish to view/change within the
currently selected section.
To edit the parameter, press to enter edit mode. The parameter begins to flash to indicate that you are
editing the value.
Press the (up or down) buttons to change the parameter to the required value.
Press to save the value. The parameter ceases flashing to indicate that it has been saved.
To exit the editor at any time, press and hold the or button.
NOTE: - The editor automatically exits after 5 minutes of inactivity to ensure security.
NOTE: - The PIN number is automatically reset when the editor is exited (manually or
automatically) to ensure security.
NOTE: - More comprehensive module configuration is possible using the 86xx series PC
configuration software. Please contact us for further details.

104
11.2 ADJUSTABLE PARAMETERS
Front Panel Configuration Editor. For descriptions of the parameters, you are referred to The DSE8600
series Configuration Suite Manual, DSE Part 057-119.
Section Parameter as shown on display Values
Display Contrast 53%
Language English, others.
Current Date and Time hh:mm
Timers LCD Page Timer 5m
Scroll Delay 2s
Engine Pre Heat Timer 0s
Engine Crank Duration 10s
Engine Crank Rest Time 10s
Engine Safety On Delay 10s
Engine Smoke Limiting 0s
Engine Smoke Limiting Off 0s
Engine Warm Up Time 0s
Engine Cool Down Time 1m
Engine Speed Overshoot Delay 0s
Engine Failed To Stop 30s
Battery Under Voltage Warning Delay 1m
Battery Over Voltage Warning Delay 1m
Return Delay 30s
Generator Transient Delay 0s
Mains
Mains Transient Delay 2s
Mains transfer time 0.7s
Mains Under Voltage Alarm 184V
Mains Over Voltage Alarm 277V
Mains Under Frequency Alarm 45Hz
Mains over Frequency Alarm 55Hz
Mains Transient Delay 2s
CT Primary 600A
CT Secondary 5A
Mains KW Rating 345kW
Mains KVar Rating 258kW
Generator Under Voltage Shutdown 184v
Under Voltage Pre-Alarm 196v
Nominal Voltage 230v
Over Voltage Pre-Alarm 265v
Over Voltage Shutdown 277v
Under Frequency Shutdown 40Hz
Under Frequency Pre-Alarm 42Hz
Nominal frequency 50Hz
Over Frequency Pre-Alarm 54Hz
Over Frequency Shutdown 57Hz
Full Load Rating 500A
kW Overload Trip 100%
Delayed Over current Active
Delayed Over Current 100%
AC System 3 Phase 4 Wire
CT Primary 600A Power Cycle After Exit
CT Secondary 5A Power Cycle After Exit
Short Circuit Trip 200%
Earth CT Primary 500A
Earth Fault Trip Active
Earth Fault Trip 10%
Transient Delay 0s
Gen Reverse Power Delay 2s
Full kW rating 345kW
Full kVAr rating 258kVAr
Load Ramp Rate 3%
Gen Reverse Power 35kW
Insufficient Capacity Delay 1s
Insufficient Capacity action None
Reactive Load CTL mode VAr fixed export
Load Parallel Power 50%
Load Power Factor 1.00pf 0 KVAr 0%
Engine Oil Pressure Low shutdown 1.03bar
Oil Pressure Low Pre-Alarm 1.24bar
Coolant Temp High Pre-Alarm 90ºC
Coolant Temp High Electrical Trip 92ºC (When Enabled)
Coolant Temp High Shutdown 95ºC
Start Delay Off load 5s
Start Delay on load 5s
Start Delay Telemetry 5s
Pre Heat Timer 0s
Crank Duration 10s
Crank rest Time 10s
Safety On Delay 10s
Smoke Limiting 0s
Smoke limiting off 0s
Warm Up Time 0s
Cool Down Time 1m
Speed Overshoot Delay 0s
Speed Overshoot 0%
Fail To Stop Delay 30s
Battery Under Volts Warning Active
Battery Under Volts Warning Delay 1m
Charge Alternator Failure Shutdown 5s (When Enabled)
Charge Alternator Failure Shutdown Active, Inactive. Electronic engines only when droop is enabled.
Charge Alternator Shutdown Delay Active, Inactive
Droop % Active , Inactive (Only Available When Scheduler Is Active)
Scheduler
Scheduler Weekly, Monthly (Only Available When Scheduler Is Active)
Schedule On Load
Active , Inactive (Only Available When Scheduler Is
Active)
Schedule Period
Weekly, Monthly (Only Available When Scheduler Is
Active)

Schedule Time & Date Selection (1-16) Press to begin editing then or when
105
selecting the different parameters in the scheduler.
11.3 ACCESSING THE ‘RUNNING’ CONFIGURATION EDITOR
The ‘running’ editor can be entered while the engine is running. All protections remain active if the
engine is running while the running editor is entered.
Press and hold the button to enter the running editor.
11.3.1 EDITING A PARAMETER
Enter the editor as described above.
Press the (left) or (right) buttons to cycle to the section you wish to
view/change.
Press the (up or down) buttons to select the parameter you wish to
view/change within the currently selected section.
To edit the parameter, press to enter edit mode. The parameter begins to flash to
indicate that you are editing the value.
Press the (up or down) buttons to change the parameter to the required
value.
Press to save the value. The parameter ceases flashing to indicate that it has
been saved.
To exit the editor at any time, press and hold the button.
11.3.2 ADJUSTABLE PARAMETERS (RUNNING EDITOR)
Running Editor (Factory default settings are shown in bold italicised text)
Section Parameter as shown on display Factory Setting
DISPLAY Contrast 53%
Language English
)
Load Demand priority (1)
Load Power factor 0-100% (0)
Load parallel power 0-100% (50)
Enable commissioning screens Inactive, Active
Override starting alarms Inactive, Active
Voltage adjust (manual mode only engine running breaker open) 0-100 % (0)
Frequency adjust (manual mode only engine running breaker open) 0-100 % (0)
Enable mains decoupling test mode (Stop mode only) Inactive Active

106
12 FAULT FINDING
SYMPTOM POSSIBLE REMEDY
Unit is inoperative Check the battery and wiring to the unit. Check the DC
supply. Check the DC fuse.
Unit shuts down Check DC supply voltage is not above 35 Volts or below 9
Volts when the module is operating. Run the system
through a complete test and check the voltage remains
within these limits consistently.
Check the operating temperature is not above 70°C. Check
the DC fuse.
Warning fault operates Check relevant switch and wiring of fault indicated on LCD
display. Check configuration of input.
Continuous starting of generators
when in AUTO
Check that there is no signal present on the “Remote Start”
input. Check configured polarity is correct. Check that the
mains supply is within limits and load level on the mains is
not above the configured level for mains “import/export”.
NOTE: - The above fault finding is provided as a guide check-list only. As it is possible for the module
to be configured to provide a wide range of different features always, refer to the source of your module
configuration if in doubt.

12.1.1 EARTH FAULT TRIPPING CURVES
NOTE: DSE Factory setting is time multiplier (K) = 0.4
DSE8620 Operating Manual Issue 1

DSE Model 8620 Main Control and ATS Operators Manual
12.1.2 SHORT CIRCUIT TRIPPING CURVES
NOTE: DSE Factory setting is time multiplier (K) = 0.01
108
Trip time
(mS)
Multiple of trip point setting

12.2 COMMUNICATIONS OPTION
12.2.1 DESCRIPTION
The 86xx series configuration software allows the 8620 controller to communicate with a PC. The computer can
be connected to the module either directly, via a modem (RS232) or via an RS485 link.
The operator is then able to remotely control the module, starting or stopping the generator, selecting operating
modes, etc. The various operating parameters (such as output volts, oil pressure, etc.) on the remote
generator can also be viewed.
The information contained in this manual should be read in conjunction with the appropriate module
documentation. This manual only details the operation of the communications software and how it should be
used. The operation of the module is detailed in its own relevant manual.
12.2.2 CONTROLLER TO PC (DIRECT) CONNECTION
To connect a 8620 to a modem the following items are required: -
· Any 8620 Module
· DSE Configuration Suite software (Available from the www.deepseaplc.com Website).
109

110
12.2.3 MODBUS
The RS485 output uses Modbus communications protocol. This uses a master-slave technique to
communicate. Only the Master can initiate a packet transaction, called a ‘query’. When appropriate the slave
(8620 Module) responds to the query and provides the information requested by the master.
All supported data can be read and written as specified in the register table (documentation is available from
Deep Sea Electronics Plc.).
When the 8620 Module receives a query it will respond by either supplying the requested register data or
performing the requested action. A slave device (the 8620 module) will never initiate communications on the
Modbus™ link. The 8620 can only be configured as a slave device. The Master can only query individual
slaves. Refer to the Modbus™ protocol document for more details.
12.3 IEEE C37.2 STANDARD ELECTRICAL POWER SYSTEM FUNCTION NUMBERS
The DSE 8620 contains many protection devices and functions, which are listed in detail in the following
sections.
Functions and protections provided corresponding to IEEE C37.2 (1996) system device numbers are listed
below.
.
Overall the 8620 is designated as 11 - Multifunction device and includes the following protections and
functions:
Device Description
2
time delay starting
or closing relay
A device that functions to give a desired amount of time delay before or
after any point of operation in a switching sequence or protective relay
system, except as specifically provided by device functions 48, 62, 79, and
82.
3
checking or
interlocking relay
A device that operates in response to the position of one or more other
devices or predetermined conditions in a piece of equipment or circuit, to
allow an operating sequence to proceed, or to stop, or to provide a check
of the position of these devices or conditions for any purpose.
5 stopping device
A control device used primarily to shut down equipment and hold it out of
operation. (This device may be manually or electrically actuated, but it
excludes the function of electrical lockout [see device function 86] on
abnormal conditions.)
12 overspeed device A device, usually direct connected, that operates on machine overspeed.
14 underspeed device
A device that functions when the speed of a machine falls below a
predetermined value.
15
speed or frequency
matching device
A device that functions to match and hold the speed or frequency of a
machine or a system equal to, or approximately equal to, that of another
machine, source, or system.
18
accelerating or
decelerating device
A device that is used to close or cause the closing of circuits that are used
to increase or decrease the speed of a machine.
25
synchronizing or
synchronism-check
relay
A synchronizing device produces an output that causes closure at zero-phase
angle difference between two circuits. It may or may not include
voltage and speed control. A synchronism-check relay permits the
paralleling of two circuits that are within prescribed limits of voltage
magnitude, phase angle, and frequency.
27 undervoltage relay
A device that operates when its input voltage is less than a predetermined
value.
30 annunciator relay
A non-automatically reset device that gives a number of separate visual
indications upon the functioning of protective devices and that may also be
arranged to perform a lockout function.

111
31
separate excitation
device
A device that connects a circuit, such as the shunt field of a synchronous
converter, to a source of separate excitation during the starting sequence.
32
directional power
relay
A device that operates on a predetermined value of power flow in a given
direction such as reverse power flow resulting from the motoring of a
generator upon loss of its prime mover.
46
reverse-phase or
phase-balance
current relay
A device in a polyphase circuit that operates when the polyphase currents
are of reverse-phase sequence or when the polyphase currents are
unbalanced or when the negative phase-sequence current exceeds a preset
value.
48
incomplete
sequence relay
A device that generally returns the equipment to the normal or off position
and locks it out if the normal starting, operating, or stopping sequence is not
properly completed within a predetermined time.
50
instantaneous
overcurrent relay
A device that operates with no intentional time delay when the current
exceeds a preset value.
51
ac time overcurrent
relay
A device that functions when the ac input current exceeds a predetermined
value, and in which the input current and operating time are inversely related
through a substantial portion of the performance range.

112
Device Description
52 ac circuit breaker
A device that is used to close and interrupt an ac power circuit under normal
conditions or to interrupt this circuit under fault or emergency conditions.
54
turning gear
engaging device
A device electrically operated, controlled, or monitored that functions to
cause the turning gear to engage (or disengage) the machine shaft.
55 power factor relay
A device that operates when the power factor in an ac circuit rises above or
falls below a predetermined value.
59 overvoltage relay
A device that operates when its input voltage exceeds a predetermined
value.
62
time-delay stopping
or opening relay
A device that imposes a time delay in conjunction with the device that
initiates the shutdown, stopping, or opening operation in an automatic
sequence or protective relay system.
63 pressure switch
A device that operates at a given pressure value or at a given rate of
change of pressure.
69
permissive control
device
A device with two-positions that in one position permits the closing of a
circuit breaker, or the placing of a piece of equipment into operation, and in
the other position, prevents the circuit breaker or the equipment from being
operated.
71 level switch
A device that operates at a given level value, or on a given rate of change
of level.
74 alarm relay
A device other than an annunciator, as covered under device function 30,
that is used to operate, or that operates in connection with, a visual or
audible alarm.
78
phase-angle
measuring relay
A device that functions at a predetermined phase angle between two
voltages, between two currents, or between voltage and current.
81 frequency relay
A device that responds to the frequency of an electrical quantity, operating
when the frequency or rate of change of frequency exceeds or is less than
a predetermined value.
83
automatic selective
control or transfer
relay
A device that operates to select automatically between certain sources or
conditions in equipment or that performs a transfer operation automatically.
86 lockout relay
A device that trips and maintains the associated equipment or devices
inoperative until it is reset by an operator, either locally or remotely.
90 regulating device
A device that functions to regulate a quantity or quantities, such as voltage,
current, power, speed, frequency, temperature, and load, at a certain value
or between certain (generally close) limits for machines, tie lines, or other
apparatus.

13 COMMISSIONING
13.1.1 PRE-COMMISSIONING
Before the system is started, it is recommended that the following checks are made:-
10.1. The unit is adequately cooled and all the wiring to the module is of a standard and rating compatible with
the system. Check all mechanical parts are fitted correctly and that all electrical connections (including
earths) are sound.
10.2. The unit DC supply is fused and connected to the battery and that it is of the correct polarity.
10.3. The Emergency Stop input is wired to an external normally closed switch connected to DC positive.
NOTE:- If Emergency Stop feature is not required, link this input to the DC Positive. The module
will not operate unless either the Emergency Stop is fitted correctly OR terminal 3 is connected to DC
positive.
10.4. Make all checks on the engine and alternator as detailed by their respective manufacturer
113
documentation.
10.5. Check all other parts in the system according to the manufacturer documentation.
10.6. Thoroughly review the configuration of the DSE controller and check that all parameters meet the
requirements of your system.
10.7. To check the start cycle operation, take appropriate measures to prevent the engine from starting
(disable the operation of the fuel solenoid). After a visual inspection to ensure it is safe to proceed,
connect the battery supply. Select “MANUAL” and then press “START” the unit start sequence will
commence.
10.8. The starter will engage and operate for the pre-set crank period. After the starter motor has attempted
to start the engine for the pre-set number of attempts, the LCD will display ‘Failed to start. Select the
STOP/RESET position to reset the unit.
10.9. Restore the engine to operational status (reconnect the fuel solenoid). Select “MANUAL” and then press
“START”. This time the engine will start and the starter motor will disengage automatically. If not then
check the engine is fully operational (fuel available, etc.) and the fuel solenoid is operating. The engine
will now run up to operating speed. If not, and an alarm is present, check the alarm condition for validity,
and check input wiring. The engine will continue to run for an indefinite period. At this time to view the
engine and alternator parameters - refer to the ‘Description of Controls’ section of this manual.
10.10. Fully commission the engine/alternator and any other parts in the system as detailed in the respective
manufacturer documentation. This includes load bank testing, load acceptance, breaker control and
more.
10.11. When building a synchronising system, follow the DSE “4 Steps To Synchronising” as detailed elsewhere
in this document before attempting to parallel the set with another supply.
10.12. Set the modules internal clock/calendar to ensure correct operation of the scheduler and event logging
functions. For details of this procedure see section entitled Front Panel Configuration – Editing the date
and time.
10.13. If despite repeated checking of the connections between the 8600 series controller and the customer’s
system, satisfactory operation cannot be achieved, then the customer is requested to contact the factory
for further advice on:-
INTERNATIONAL TEL: +44 (0) 1723 890099
INTERNATIONAL FAX: +44 (0) 1723 893303
E-mail: Support@Deepseaplc.com

Website : www.deepseaplc.com
114

115
14 FAULT FINDING
Unit is inoperative
Read/Write configuration does not
operate
Check the battery and wiring to the unit. Check the DC supply. Check the DC
fuse.
Unit shuts down Check DC supply voltage is not above 35 Volts or below 9 Volts
Check the operating temperature is not above 70°C. Check the DC fuse.
Unit locks out on Emergency Stop If no Emergency Stop Switch is fitted, ensure that a DC positive signal is
connected to the Emergency Stop input. Check emergency stop switch is
functioning correctly. Check Wiring is not open circuit.
Intermittent Magnetic Pick-up
sensor fault
Ensure that Magnetic pick-up screen only connects to earth at one end, if
connected at both ends, this enables the screen to act as an aerial and will pick
up random voltages. Check pickup is correct distance from the flywheel teeth.
Low oil Pressure fault operates
after engine has fired
Check engine oil pressure. Check oil pressure switch/sensor and wiring. Check
configured polarity (if applicable) is correct (i.e. Normally Open or Normally
Closed) or that sensor is compatible with the 73x0 Module and is correctly
configured.
High engine temperature fault
operates after engine has fired.
Check engine temperature. Check switch/sensor and wiring. Check configured
polarity (if applicable) is correct (i.e. Normally Open or Normally Closed) or that
sensor is compatible with the 8600 series module.
Shutdown fault operates Check relevant switch and wiring of fault indicated on LCD display. Check
configuration of input.
Warning fault operates Check relevant switch and wiring of fault indicated on LCD display. Check
configuration of input.
Fail to Start is activated after pre-set
number of attempts to start
Check wiring of fuel solenoid. Check fuel. Check battery supply. Check battery
supply is present on the Fuel output of the module. Check the speed-sensing
signal is present on the 8600 series module’s inputs. Refer to engine manual.
Continuous starting of generator
when in AUTO
Check that there is no signal present on the “Remote Start” input. Check
configured polarity is correct.
Generator fails to start on receipt
of Remote Start signal.
Check Start Delay timer has timed out.
Check signal is on “Remote Start” input. Confirm correct configuration of input
Check that the oil pressure switch or sensor is indicating low oil pressure to the
controller. Depending upon configuration, then set will not start if oil pressure is
not low.
Pre-heat inoperative Check wiring to engine heater plugs. Check battery supply. Check battery
supply is present on the Pre-heat output of module. Check pre-heat
configuration is correct.
Starter motor inoperative Check wiring to starter solenoid. Check battery supply. Check battery supply is
present on the Starter output of module. Ensure that the Emergency Stop input
is at Positive. Ensure oil pressure switch or sensor is indicating the “low oil
pressure” state to the 8610 series controller.
Engine runs but generator will not
take load
Check Warm up timer has timed out. Ensure generator load inhibit signal is not
present on the module inputs. Check connections to the switching device.
Note that the set will not take load in manual mode unless there is an active
remote start on load signal.
Synchronising or load sharing is
not operating satisfactorily
Follow the DSE “4 Steps To Synchronising” as detailed in the following section.

116
Incorrect reading on Engine
gauges
Fail to stop alarm when engine is
at rest
Check engine is operating correctly. Check sensor and wiring paying particular
attention to the wiring to terminal 47 (refer to appendix). Check that sensor is
compatible with the 8600 series module and that the module configuration is
suited to the sensor.
Module appears to ‘revert’ to an
earlier configuration
When editing a configuration using the PC software it is vital that the
configuration is first ‘read’ from the controller before editing it. This edited
configuration must then be “written” back to the controller for the changes to
take effect.
When editing a configuration using the fascia editor, be sure to press the
Accept button to save the change before moving to another item or exiting
the fascia editor
Set will not take load Ensure the generator available LED is lit
Check that the output configuration is correct to drive the load switch device
and that all connections are correct.
Remember that the set will not take load in manual mode unless a remote start
on load input is present or the close generator button is pressed.
Inaccurate generator
measurements on controller
display
Check that the CT primary, CT secondary and VT ratio settings are correct for
the application.
Check that the CTs are wired correctly with regards to the direction of current
flow (p1,p2 and s1,s2) and additionally ensure that CTs are connected to the
correct phase (errors will occur if CT1 is connected to phase 2).
Remember to consider the power factor. Ie (kW = kVA x power factor)
The 8600 series controller is true RMS measuring so gives more accurate
display when compared with an ‘averaging’ meter such as an analogue panel
meter or some lower specified digital multimeters.
Accuracy of the controller is better than 1% of full scale. I.e. Gen volts full
scale is 333V ph-n so accuracy is ±3.33V (1% of 333V).
NOTE:- The above fault finding is provided as a guide check-list only. As the module is
configurable for a range of different features, always refer to the source of your module configuration
if in doubt.

15 DSE 4 STEPS TO SUCCESSFUL SYNCHRONISING
Synchronising and load sharing is often considered to be a complex subject. In fact, it is very simple when
broken down into smaller steps.
After following the Commissioning section of this manual, the 4 Steps must be followed before any parallel
operation is attempted.
The following information is a short form guide only, intended as a memory jogger once the steps are fully
understood.
The full video presentation of the 4 Steps is available on the DSE website. www.deepseaplc.com. Registration
on the website is required. This is free of charge, along with all other downloads.
This page is also available as a training document (handout style) from DSE. Part Number 056-001 Four Steps
to Synchronising – included on the DSE website.
15.1 CONTROL
117
Check the control of the engine is working:
· Control of AVR
· Control of Governor
· Direction of Control
Failure of the above steps will result in poor control of the governor/AVR leading to problems during
synchronising and/or load sharing if not corrected.
15.2 METERING
· CTs on the Right Phase
· CTs in the Right Direction
Failure of the above steps will result in incorrect power factor and kW calculations leading to problems
load sharing if not corrected.
15.3 COMMUNICATIONS
· All Modules Connected on the MSC Link
· Re-Calibrate, Sync + Load Control, Multi-Set
· Remove One MSC Plug
Failure of the above steps will result in the controllers being unable to communicate leading to
problems during synchronising and/or load sharing if not corrected.
15.4 SYNC CHECKS
· Use the Built in Sync Scope to Determine Correct Phase Wiring
· Phase Checks across the Breaker.
Failure of the above steps will result in serious damage to the system (breakers, bus bars, alternators,
engines etc)

16 MAINTENANCE, SPARES, REPAIR AND SERVICING
The DSE8600 Series controller is Fit and Forget. As such, there are no user serviceable parts within the
controller.
In the case of malfunction, you should contact your original equipment manufacturer (OEM).
16.1 PURCHASING ADDITIONAL CONNECTOR PLUGS FROM DSE
If you require additional plugs from DSE, please contact our Sales department using the part numbers below.
118
16.1.1.1 Pack of plugs
Module type Plug Pack Part Number
DSE8620 100-400-86
16.1.1.2 Individual plugs
8600 series terminal designation Plug description Part No.
1-13
13 way 5.08mm 007-166
15-19 5 way 5.08mm 007-445
22-38
MSC GOV AVR 17 way 5.08mm 007-452
39-46 V1 8 way 7.62mm 007-454
47-50 V2 4 way 7.62mm 007-171
51-57 7 way 5.08mm 007-447
60-70 11 way 5.08mm 007-451
PC Configuration interface lead
(USB type A – USB type B)
016-125
NOTE:- Terminals 20, 21, 58 and 59 are not fitted to DSE8600 series controllers.
16.2 PURCHASING ADDITIONAL FIXING CLIPS FROM DSE
Item Description Part No.
8600 series fixing clips (packet of 4) 020-294
16.3 PURCHASING ADDITIONAL SEALING GASKET FROM DSE
Item Description Part No.
8600 series silicon sealing gasket 020-507

16.4 DSENET EXPANSION MODULES
NOTE:- A maximum of twenty (20) expansion modules can be connected to the DSENet®.
NOTE:- DSENet® utilises an RS485 connection. Using Belden 9841 (or equivalent) cable allows for
the expansion cable to be extended to a maximum of 1.2km.
DSE Stock and supply Belden 9841 cable. DSE Part Number 016-030.
119
Item Description
DSE Part numbers
Max No.
supported
Model order
number
Sales
literature
Operator
manual
Installation
Instructions
4
Model DSE2130 expansion input module
provides additional analogue and digital
inputs for use with the DSE8600 series
controller.
2130-001-00 055-060 057-082 053-033
10
Model DSE2157 expansion relay module
provides eight additional voltage free relays
for use with the DSE8600 series controller
2157-001-00 055-061 057-083 053-034
10
Model DSE2548 expansion LED module
provides additional LED indications, internal
sounder and remote lamp test/alarm mute
for use with the DSE8600 series controller.
2548-001-00 055-062 057-084 053-032
16.5 ETHERNET (LAN) CONNECTION
NOTE: - DSE860 and DSE865 cannot be used with the DSE8620 although this module does have
its own dedicated Ethernet port. (See beginning of manual for details)

120
17 WARRANTY
DSE provides limited warranty to the equipment purchaser at the point of sale. For full details of any applicable
warranty, you are referred to your original equipment supplier (OEM).
18 DISPOSAL
18.1 WEEE (WASTE ELECTRICAL AND ELECTRONIC EQUIPMENT)
Directive 2002/96/EC
If you use electrical and electronic equipment you must store, collect, treat, recycle and dispose of
WEEE separately from your other waste.
18.2 ROHS (RESTRICTION OF HAZARDOUS SUBSTANCES)
Directive 2002/95/EC: 2006
To remove specified hazardous substances (Lead, Mercury, Hexavalent Chromium, Cadmium, PBB & PBDE´s)
Exemption Note: Category 9. (Monitoring & Control Instruments) as defined in Annex 1B of the WEEE directive
will be exempt from the RoHS legislation. This was confirmed in the August 2005 UK´s Department of Trade
and Industry RoHS REGULATIONS Guide (Para 11).
Despite this exemption, DSE has been carefully removing all non RoHS compliant components from our supply
chain and products.
When this is completed, a Lead Free & RoHS compatible manufacturing process will be phased into DSE
production.
This process that is almost complete and is being phased through different product groups.

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