Cummins onan dgbc generator set with power command 2100 controller service repair manual

Service Manual
Generator Sets
DGBB (Spec A−M)
DGBC (Spec A−L)
DGCA (Spec A−V)
DGCB (Spec A−V)
DGCG (Spec A−C)
DGDA (Spec A−R)
DGDB (Spec A−S)
DGDK (Spec A−D)
DGFA (Spec A−S)
DGFB (Spec A−S)
DGFC (Spec A−N)
DGFS (Spec A−C)
with PowerCommand 2100 Controller
English − Original Instructions 11−2010 960−0518 (Issue 2)

i
Table of Contents
SECTION TITLE PAGE
IMPORTANT SAFETY INSTRUCTIONS iii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1 INTRODUCTION
About this Manual 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Overview 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test Equipment 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How To Obtain Service 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 CONTROL OPERATION
General 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Control Panel Power On/Off Modes 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Panel 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Menu Display and Buttons 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Main Menus 2-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Controller Configuration Menu 2-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Menu 2-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Alternator Menu 2-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjust Menu 2-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Faults Menu 2-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Menu 2-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
History Menu 2-20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
About Menu 2-22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Transfer Menu 2-24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 CIRCUIT BOARDS AND MODULES
General 3-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Base Board 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4 TROUBLESHOOTING
General 4-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
InPower Service Tool 4-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Network Application and Customer Inputs 4-1. . . . . . . . . . . . . . . . . . . . . . . . . .
Safety Considerations 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting Procedure 4-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ii
SECTION TITLE PAGE
5 POWER TRANSFER CONTROL (PTC) TROUBLESHOOTING
General 5-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PTC Module 5-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sequence of Events 5-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting using Fault Codes 5-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PTC Fault Code Troubleshooting Procedure 5-3. . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting with Symptoms 5-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Source 1 Power Fails, But Genset Does Not Start 5-9. . . . . . . . . . . . . . . . . . .
Genset Starts, But Does Not Assume Load 5-11. . . . . . . . . . . . . . . . . . . . . . . .
PTC Module Does Not Retransfer When Source 1 Utility Power
Is Restored After A Power Failure Or On Initial Installation 5-13. . . . . . . .
Genset Continues To Run After Retransfer Of Load To S1 Utility 5-15. . . . . .
Genset Starts During Normal Power Service 5-15. . . . . . . . . . . . . . . . . . . . . . .
Generator Test Runs But Genset Does Not Assume Load 5-15. . . . . . . . . . . .
6 CONTROL ADJUSTMENT AND SERVICE
General 6-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Circuit Board Removal/Replacement 6-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Modifying Setup Submenus 6-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Password Submenu 6-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Crank/Idle Setup Menu 6-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Governor/Regulator Setup Menu 6-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Transfer Setup Menu 6-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PCC Control Panel Box Components (Standard/Optional) 6-12. . . . . . . . . . .
Engine Sensors 6-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Magnetic Speed Pickup Unit (MPU) 6-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Current Transformer (CT) Installation 6-19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7 SERVICING THE GENERATOR
Testing the Generator 7-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Generator/Base Board Isolation Procedure 7-2. . . . . . . . . . . . . . . . . . . . . . . . .
Generator Disassembly 7-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Generator Reassembly 7-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Servicing the PMG 7-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8 FUEL TRANSFER PUMP AND CONTROL
General 8-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation 8-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wiring Connections 8-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel Transfer Pump Motor Connections 8-6. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Testing the Float Switch Assembly 8-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9 WIRING DIAGRAMS
General 9-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

LS-14L
iii
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS − This manual contains
important instructions that should be followed during
installation and maintenance of the generator and batter-
ies.
Before operating the generator set (genset), read the
Operator’s Manual and become familiar with it and the
equipment. Safe and efficient operation can be
achieved only if the equipment is properly operated
and maintained. Many accidents are caused by failure
to follow fundamental rules and precautions.
The following symbols, found throughout this manual,
alert you to potentially dangerous conditions to the oper-
ator, service personnel, or the equipment.
This symbol warns of immediate
hazards which will result in severe personal in-
jury or death.
WARNING This symbol refers to a hazard or un-
safe practice which can result in severe person-
al injury or death.
CAUTION This symbol refers to a hazard or un-
safe practice which can result in personal injury
or product or property damage.
FUEL AND FUMES ARE FLAMMABLE
Fire, explosion, and personal injury or death can result
from improper practices.
 DO NOT fill fuel tanks while engine is running, un-
less tanks are outside the engine compartment.
Fuel contact with hot engine or exhaust is a potential
fire hazard.
 DO NOT permit any flame, cigarette, pilot light,
spark, arcing equipment, or other ignition source
near the generator set or fuel tank.
 Fuel lines must be adequately secured and free of
leaks. Fuel connection at the engine should be
made with an approved flexible line. Do not use zinc
coated or copper fuel lines with diesel fuel.
 Be sure all fuel supplies have a positive shutoff
valve.
 Be sure battery area has been well-ventilated prior
to servicing near it. Lead-acid batteries emit a highly
explosive hydrogen gas that can be ignited by arc-
ing, sparking, smoking, etc.
EXHAUST GASES ARE DEADLY
 Provide an adequate exhaust system to properly
expel discharged gases away from enclosed or
sheltered areas and areas where individuals are
likely to congregate. Visually and audibly inspect
the exhaust daily for leaks per the maintenance
schedule. Make sure that exhaust manifolds are se-
cured and not warped. Do not use exhaust gases to
heat a compartment.
 Be sure the unit is well ventilated.
 Engine exhaust and some of its constituents are
known to the state of California to cause cancer,
birth defects, and other reproductive harm.
MOVING PARTS CAN CAUSE SEVERE
PERSONAL INJURY OR DEATH
 Keep your hands, clothing, and jewelry away from
moving parts.
 Before starting work on the generator set, discon-
nect battery charger from its AC source, then dis-
connect starting batteries, negative (−) cable first.
This will prevent accidental starting.
 Make sure that fasteners on the generator set are
secure. Tighten supports and clamps, keep guards
in position over fans, drive belts, etc.
 Do not wear loose clothing or jewelry in the vicinity of
moving parts, or while working on electrical equip-
ment. Loose clothing and jewelry can become
caught in moving parts.
 If adjustment must be made while the unit is run-
ning, use extreme caution around hot manifolds,
moving parts, etc.
DO NOT OPERATE IN FLAMMABLE AND
EXPLOSIVE ENVIRONMENTS
Flammable vapor can cause an engine to overspeed and
become difficult to stop, resulting in possible fire, explo-
sion, severe personal injury and death. Do not operate a
genset where a flammable vapor environment can be
created by fuel spill, leak, etc., unless the genset is
equipped with an automatic safety device to block the air
intake and stop the engine. The owners and operators of
the genset are solely responsible for operating the gen-
set safely. Contact your authorized Cummins Power
Generation distributor for more information.

iv
ELECTRICAL SHOCK CAN CAUSE
SEVERE PERSONAL INJURY OR DEATH
 Remove electric power before removing protective
shields or touching electrical equipment. Use rub-
ber insulative mats placed on dry wood platforms
over floors that are metal or concrete when around
electrical equipment. Do not wear damp clothing
(particularly wet shoes) or allow skin surface to be
damp when handling electrical equipment. Do not
wear jewelry. Jewelry can short out electrical con-
tacts and cause shock or burning.
 Use extreme caution when working on electrical
components. High voltages can cause injury or
death. DO NOT tamper with interlocks.
 Follow all applicable state and local electrical
codes. Have all electrical installations performed by
a qualified licensed electrician. Tag and lock open
switches to avoid accidental closure.
 DO NOT CONNECT GENERATOR SET DIRECT-
LY TO ANY BUILDING ELECTRICAL SYSTEM.
Hazardous voltages can flow from the generator set
into the utility line. This creates a potential for elec-
trocution or property damage. Connect only
through an approved isolation switch or an ap-
proved paralleling device.
GENERAL SAFETY PRECAUTIONS
 Coolants under pressure have a higher boiling point
than water. DO NOT open a radiator or heat ex-
changer pressure cap while the engine is running.
Allow the generator set to cool and bleed the system
pressure first.
 Used engine oils have been identified by some state
or federal agencies as causing cancer or reproduc-
tive toxicity. When checking or changing engine oil,
take care not to ingest, breathe the fumes, or con-
tact used oil.
 Keep multi-class ABC fire extinguishers handy.
Class A fires involve ordinary combustible materials
such as wood and cloth; Class B fires, combustible
and flammable liquid fuels and gaseous fuels; Class
C fires, live electrical equipment. (ref. NFPA No. 10).
 Make sure that rags are not left on or near the en-
gine.
 Make sure generator set is mounted in a manner to
prevent combustible materials from accumulating
under the unit.
 Remove all unnecessary grease and oil from the
unit. Accumulated grease and oil can cause over-
heating and engine damage which present a poten-
tial fire hazard.
 Keep the generator set and the surrounding area
clean and free from obstructions. Remove any de-
bris from the set and keep the floor clean and dry.
 Do not work on this equipment when mentally or
physically fatigued, or after consuming any alcohol
or drug that makes the operation of equipment un-
safe.
 Substances in exhaust gases have been identified
by some state or federal agencies as causing can-
cer or reproductive toxicity. Take care not to breath
or ingest or come into contact with exhaust gases.
 Do not store any flammable liquids, such as fuel,
cleaners, oil, etc., near the generator set. A fire or
explosion could result.
 Wear hearing protection when going near an oper-
ating generator set.
 To prevent serious burns, avoid contact with hot
metal parts such as radiator, turbo charger and ex-
haust system.
KEEP THIS MANUAL NEAR THE GENSET FOR EASY REFERENCE

1-1
1. Introduction
ABOUT THIS MANUAL
This manual provides troubleshooting and repair
information regarding the PowerCommand 2100
Control (PCC) and generators for the gensets listed
on the front cover. Engine service instructions are in
the applicable engine service manual. Operating
and maintenance instructions are in the applicable
Operator’s Manual.
This manual does not have instructions for
servicing printed circuit board assemblies. After
determining that a printed circuit board assembly is
faulty, replace it. Do not repair it. Attempts to repair a
printed circuit board can lead to costly damage to
the equipment.
This manual contains basic (generic) wiring
diagrams and schematics that are included to help
in troubleshooting. Service personnel must use the
actual wiring diagram and schematic shipped with
each unit. The wiring diagrams and schematics that
are maintained with the unit should be updated
when modifications are made to the unit.
Read Safety Precautions and carefully observe all
instructions and precautions in this manual.
SYSTEM OVERVIEW
The PCC is a microprocessor-based control for
Cummins Power Generation generator sets. All
generator set control functions are contained on
one circuit board (Base board). The Base board
provides engine speed governing, main alternator
voltage output regulation, and complete generator
set control and monitoring.
The operating software provides control of the gen-
erator set and its performance characteristics, and
displays performance information on a digital dis-
play panel. It accepts menu-driven control and set-
up input from the push button switches on the front
panel.
TEST EQUIPMENT
To perform the test procedures in this manual, the
following test equipment must be available
 True RMS meter for accurate measurement of
small AC and DC voltages. Fluke models 87 or
8060A are good choices.
 Grounding wrist strap to prevent circuit board
damage due to electrostatic discharge (ESD).
 Battery Hydrometer
 Jumper Leads
 Tachometer or Frequency Meter
 Wheatstone Bridge or Digital Ohmmeter
 Variac
 Load Test Panel
 Megger or Insulation Resistance Meter
 PCC Service Tool Kit (Harness Tool and Sen-
sor Tool)
 InPower Service Tool (PC based genset ser-
vice tool)
HOW TO OBTAIN SERVICE
Always give the complete Model, Specification and
Serial number of the generator set as shown on the
nameplate when seeking additional service
information or replacement parts. The nameplate is
located on the side of the generator output box.
WARNING Incorrect service or replacement of
parts can result in severe personal injury or
death, and/or equipment damage. Service per-
sonnel must be qualified to perform electrical
and mechanical service. Read and follow Safety
Precautions, on pages iii and iv.

2-1
2. Control Operation
GENERAL
The following describes the function and operation
of the PowerCommandR 2100 Control (PCC). All
indicators, control switches/buttons and digital dis-
play are located on the face of the control panel as
illustrated in Figure 2-1.
CONTROL PANEL POWER ON/OFF
MODES
The power on/off modes of the control panel and op-
erating software are Power On, Screen Saver and
Sleep/Awake.
Power On Mode: In this mode, power is continu-
ously supplied to the control panel. The control’s
operating software and control panel LEDs/digital
display will remain active until the Screen Saver
mode is activated.
Screen Saver Mode: Power to the digital display is
removed after 30 minutes (generator set not run-
ning or running). The 30 minute timer resets and be-
gins after each control panel action (any button or
switch selection) or signal received by the operating
software. All LEDs on the control panel operate nor-
mally during Screen Saver mode, indicating that the
operating software is active (Awake mode).
When a “Warning” signal is sensed by the PCC (for
example, low coolant temp), the control displays the
warning message.
Sleep/Awake Mode: In the Sleep mode, the con-
trol’s operating software is inactive and the LEDs
and the digital display on the control panel are all off.
Sleep mode is a feature used to reduce battery
power consumption when the control is not being
used and the O/Manual/Auto switch is in the O posi-
tion.
When all conditions are met (i.e., no unacknowl-
edged faults and O/Manual/Auto switch is in the O
position) the Sleep mode is activated.
The operating software is initialized and the digital
display and control panel LEDs are turned on in re-
sponse to moving/pressing the following control
panel switch/buttons:
 Off/Manual/Auto switch
 Emergency Stop button
 Fault Acknowledge/Reset button
 Panel Lamp/Lamp Test button
To activate the control and view the menu display
without starting the generator set, press Fault Ac-
knowledge or Panel Lamp button or move mode
switch from O to Manual.
The InPower service tool is required to enable or
disable the Sleep mode. When shipped from the
factory, the Sleep mode is disabled. When disabled,
the operating software will always remain active
(Awake mode). (If network and/or power transfer
control feature is installed, the sleep mode is not
available and should not be enabled − will cause er-
ror condition.)

2-2
PANEL
LAMP
(1 of 3)
CONFIGURABLE
INDICATORS
MANUAL
RUN/STOP
BUTTON
OFF/MANUAL/
AUTO SWITCH
SHUTDOWN
AND WARNING
STATUS
INDICATORS
EMERGENCY
STOP PUSH
BUTTON
(Pull to reset)
HOME
BUTTON
ANALOG AC
METERING
PANEL
(OPTIONAL)
DIGITAL
DISPLAY
MENU
SELECTION
BUTTON
(1 of 4)
PREVIOUS
MAIN MENU
BUTTON
FAULT
ACKNOWLEDGEMENT/
RESET BUTTON
RUNNING/REMOTE
START/NOT IN AUTO
INDICATORS
PANEL LAMP
AND LAMP
TEST
BUTTON
FIGURE 2-1. FRONT PANEL

2-3
FRONT PANEL
Figure 2-1 shows the features of the front panel.
Digital Display: This two-line, 20-characters per
line alphanumeric display is used to view menus of
the menu-driven operating system. Refer to the
menu trees later in this section. The display is also
used to show warning and shutdown messages.
Display Menu Selection Buttons: Four momen-
tary buttons—two on each side of the digital display
window—are used to step through the various
menu options and to adjust generator set parame-
ters. A green triangle ( or ), arrow ( , , , or ),
>>, or plus/minus sign (+ or −) in the digital display
adjacent to the button is shown when the button can
be used (button is “active”). Refer to Menu Display
And Buttons later in this section.
Home Button: Press this button ( ) to view the
Home Menu. Refer to the menu trees later in this
section.
Previous Main Menu Button: Press this button ( )
to view the previous Main Menu. All main menus in-
clude both types of green triangles ( and ). Refer
to the menu trees later in this section.
NOTE: The up and down arrows ( and ) are used
to navigate between submenus.
Emergency Stop Button: Push this button in for
emergency shutdown of the generator set. This will
stop the generator set immediately and prevent
starting of the set from any location (local and re-
mote).
To reset:
1. Pull the button and allow it to pop out.
2. Turn the O/Manual/Auto switch to O (Off).
3. Press the front panel Fault Acknowledge/Re-
set button.
4. Select Manual or Auto, as required.
Emergency Stop shutdown can be reset only at the
PCC front panel.
Running Indicator: This green lamp is lit whenever
the generator (local or remote) is running.
Remote Start Indicator: This green lamp is lit
whenever the control is receiving a remote start sig-
nal.
Not in Auto Indicator: This red lamp flashes con-
tinuously when the O/Manual/Auto switch is not in
the Auto position.
Analog AC Metering Panel (Optional): This panel
simultaneously displays (in percent of genset rated
output):
 3-phase line-to-line AC current (A~)
 Kilowatts (kW)
 Generator output frequency in hertz (Hz)
 3-phase line-to-line AC volts (V~)
 Power Factor (PF) (shown in 0.2 increments)
Shutdown Status Indicator: This red lamp is lit
whenever the control detects a shutdown condition.
The generator set cannot be started when this lamp
is on. After the condition is corrected, shutdown in-
dicators can be reset by turning the O/Manual/Auto
switch to the O position and pressing the Fault Ac-
knowledge/Reset button.
Warning Status Indicator: This yellow lamp is lit
whenever the control detects a warning condition.
After the condition is corrected, warning indicators
can be reset by pressing the Fault Acknowledge/
Reset button. (It is not necessary to stop the gener-
ator set.) In auto mode, warning indicators can also
be reset by cycling the remote reset input after the
condition is corrected.
Some warnings remain active after the condition is
corrected and the control reset button is pressed.
This will require the genset to be shutdown to reset
the warning indicator.
Fault Acknowledge/Reset Button: Press this but-
ton to acknowledge warning and shutdown mes-
sages after the fault has been corrected. Pressing
this button clears the fault from the current fault list.
To acknowledge a Warning message, the O/Manu-
al/Auto switch can be in any position. (It is not nec-
essary to stop the generator set to acknowledge an
inactive Warning condition.) To acknowledge a
shutdown message with this button, the O/Manual/
Auto switch must be in the O position.

2-4
Panel Lamp and Lamp Test Button: Press this
button to turn the control panel lamps on or off. The
lights will shut off after about ten minutes. Press and
hold this button to test all front panel LEDs and me-
ters. The meters will light one bar at a time.
Manual Run/Stop Button: This button starts and
stops the set locally and will bypass Time Delay to
Start and Stop sequences. The O/Manual/Auto
switch must be in the Manual position to enable this
button.
O/Manual/Auto Switch: The Manual position en-
ables the use of the Manual Run/Stop button.
The Auto position enables start/stop control of the
engine from a remote location. (It disables the use
of the Manual Run/Stop button.)
The O (Off) position prevents the starting of the set
(local or remote). If the switch is set to O during set
operation, the engine will immediately shut down
(cool-down timers are bypassed). This hot shut-
down should be avoided, if possible, to help prolong
the life of the engine.
Configurable Indicators
The following configurable indicators (default val-
ues shown) can be changed with the InPower ser-
vice tool. The configurable items are: change gen-
erator event and LED color (green, yellow or red),
and enable/disable indicator.
Low Oil Pressure Warning Indicator: This yellow
lamp indicates the oil pressure is lower than the nor-
mal range of operation.
High Engine Temperature Warning Indicator:
This yellow lamp indicates the engine temperature
is higher than the normal range of operation.
Low Oil Pressure Shutdown Indicator: This red
lamp indicates the engine has shut down because
of low oil pressure.
Overspeed Shutdown Indicator: This red lamp in-
dicates the engine has shut down because of ex-
cessive speed.
Fail to Start Indicator: This red lamp indicates the
engine failed to start.

2-5
MENU DISPLAY AND BUTTONS
Figure 2-2 shows the digital display and the menu
selection buttons.
Digital Display: The two-line, 20 characters per
line, digital display is used to view the menus of the
menu-driven operating system. Refer to the menu
trees later in this section. The display is also used to
show fault messages.
Display Menu Selection Buttons: Four momen-
tary buttons—two on each side of the digital display
window—are used to step through the various
menu options and to adjust generator set parame-
ters. The button is active when a symbol adjacent to
the button is displayed. The displayed symbol indi-
cates the function of the button.
 In the digital display for main menus (Figure
2-3), the and symbols indicate that pressing
the adjacent button causes the operating pro-
gram to go to the selected submenu (e.g., En-
gine Menu in Figure 2-5).
 In the digital display, the More>> symbol indi-
cates that pressing the adjacent button causes
the operating program to go to the next main
menu, as shown in Figure 2-3.
 In the digital display, the or symbols indi-
cate that pressing the adjacent button causes
the operating program to go to the next or pre-
vious submenu, as shown in the menu dia-
grams. Only the symbol is displayed in the
first submenu. Only the is displayed in the
last submenu. Both symbols are displayed in
the rest of the submenus.
 In the digital display, the plus or minus symbols
(+ or −) indicate that pressing the adjacent but-
ton can be used to change a parameter or val-
ue shown on the display.
When there is a choice of two parameters, one
parameter is associated with the + symbol and
the other is associated with the − symbol.
When changing values, pressing the button ad-
jacent to the + symbol increase the value and
pressing the button adjacent to the − symbol
decreases the value. Only one numeric char-
acter of a field can be changed at a time.
 In the digital display, the or symbol indicates
that pressing the adjacent button causes the
operating program to move the cursor to the
next numeric character. The selected numeric
character can then be changed by pressing the
buttons adjacent to the + and − symbols. Only
the symbol is displayed when the cursor is on
the first character of a field that can be
changed. Only the is displayed when the cur-
sor is on the last character. Both symbols are
displayed when the cursor is on any other char-
acter.
 After adjusting values/parameters, pressing
the symbol results in the changes being
saved. If the Home button or Previous Main
Menu button is pressed before pressing the
symbol, the changes are not saved.
Home Button: Pressing this button causes the op-
erating system to show Main Menu 1 (Figure 2-3) in
the digital display.
Previous Main Menu Button: Pressing this button
causes the operating system to show the previous
Main Menu in the digital display. All main menus in-
clude both types of green triangles ( and ).

2-6
HOME
BUTTON
PREVIOUS MAIN
MENU BUTTON
2 LINE, 20 CHARACTERS PER LINE
MENU DISPLAY
DIGITAL DISPLAY
FIGURE 2-2. DIGITAL DISPLAY AND MENU SELECTION BUTTONS

2-7
MAIN MENUS
Figure 2-3 shows the three major main menus avail-
able to the user. Figure 2-3 also includes references
to pages in this section where you can find addition-
al information on submenus. When viewing a sub-
menu, you can press the previous main menu but-
ton at any time to view its main menu.
As shown in the illustration, each main menu can
branch into one of four directions. Press the button
next to “More>>” in the display to view the next Main
menu. Main Menu 1 is redisplayed when you press
the button next to “More>>” in the Main Menu 3 dis-
play.
About
Pwr Tran
Setup
More>>
Faults
System
History
More>>
Engine
Alternator
Adjust
More>>
Main Menu 1
Main Menu 2
Main Menu 3
PAGE
2-11
PAGE
2-13
PAGE
2-15
PAGE
2-17
PAGE
2-19
PAGE
2-21
PAGE
6-5
PAGE
2-23
PAGE
2-25
FIGURE 2-3. MAIN MENUS

2-8
CONTROLLER CONFIGURATION MENU
Figure 2-4 shows a block representation of the Con-
troller Configuration menus. These menus are used
to change the default language, temperature units,
and pressure units to be displayed in menus.
To view the first Controller Configuration menu,
make sure Main Menu 1 is displayed and simulta-
neously press the Home Menu and Previous Main
Menu buttons.
As shown in the diagram, the Controller Configura-
tion menu has three submenus.
Press the buttons next to the and symbols in the
digital display to navigate between the menus.
Press the button next to the symbol in the display
until the + and − symbols are displayed.
Press the button next to the + or − symbol to select
the desired option.
After selecting option, pressing the symbol results
in the changes being saved. If the Home button or
Previous Main Menu button is pressed before
pressing the symbol, the changes are not saved.
Language Selected submenu: Used to select de-
sired language (default = English).
Temperature Units submenu: Used to select
Fahrenheit or Centigrade for temperature readings.
Fluid Pressure Units submenu: Used to select
PSI or kPA for pressure readings.

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Cummins onan dgbc generator set with power command 2100 controller service repair manual

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Cummins onan dgbc generator set with power command 2100 controller service repair manual