Advanced motion controls sx25a20
0 likes142 views
The SX25A20 analog servo drive is designed to drive 3-phase brushless motors with sine wave current at high switching frequencies. It requires two 120° phase-shifted sine wave command signals to control motor position and torque. The drive interfaces with digital controllers, operates in current mode, and includes protections from overvoltage, overcurrent, and overheating. It requires a single DC power supply and has adjustable current limits and gain settings.
Advanced motion controls sx25a20
- 1. Analog Servo Drive SX25A20 Description Power Range The SX25A20 PWM servo drive is designed to drive three phase brushless motors with sine wave current at a high switching frequency. The drive requires two sinusoidal command signals with a 120-degree phase shift (external commutation). The phase angle must correspond to the position of the motor rotor, while the signal amplitude controls the motor torque. The SX25A20 interfaces directly with digital controllers. The drive is fully protected against over-voltage, over- current, over-heating, and short-circuits, and requires only a single unregulated DC power supply (all logic and control voltages are generated internally). A red/green LED and two digital outputs indicate operating status. See Part Numbering Information on last page of datasheet for additional ordering options. Peak Current 25 A (17.7 ARMS) Continuous Current 12.5 ARMS Supply Voltage 60 - 190 VDC Features Optical Isolation Between High & Low Power Signals Four Quadrant Regenerative Operation Adjustable Current Limits High Switching Frequency Differential Input Command Selectable Inhibit/Enable Logic Digital Fault Output Monitor Sinusoidal Current Output Adjustable Input Gain DIP Switch Selectable Tuning Drive Status LED No Crossover Distortion MODES OF OPERATION Current COMMAND SOURCE 120° Sine COMPLIANCES & AGENCY APPROVALS UL cUL CE Class A (LVD) CE Class A (EMC) RoHS ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.com Sold & Serviced By:
- 2. Analog Servo Drive SX25A20 BLOCK DIAGRAM Information on Approvals and Compliances US and Canadian safety compliance with UL 508c, the industrial standard for power conversion electronics. UL registered under file number E140173. Note that machine components compliant with UL are considered UL registered as opposed to UL listed as would be the case for commercial products. Compliant with European CE for both the Class A EMC Directive 2004/108/EC on Electromagnetic Compatibility (specifically EN 61000-6-4:2007 and EN 61000-6-2:2005) and LVD requirements of directive 2006/95/EC (specifically EN 60204-1:2006), a low voltage directive to protect users from electrical shock. RoHS (Reduction of Hazardous Substances) is intended to prevent hazardous substances such as lead from being manufactured in electrical and electronic equipment. ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.com Sold & Serviced By:
- 3. Analog Servo Drive SX25A20 SPECIFICATIONS Power Specifications Description Units Value DC Supply Voltage Range VDC 60 - 190 DC Bus Over Voltage Limit VDC 196 Maximum Peak Output Current1 A 25 Maximum Continuous Sine Wave Current Arms 12.5 Maximum Continuous Output Power W 2256 Maximum Power Dissipation at Continuous Current W 119 Minimum Load Inductance (Line-To-Line)2 μH 250 Switching Frequency kHz 27 Control Specifications Description Units Value Command Sources - 120° Sine Commutation Methods - Sinusoidal Modes of Operation - Current Motors Supported - Three Phase (Brushless) Hardware Protection - Over Current, Over Temperature, Over Voltage, Short Circuit (Phase-Phase & Phase-Ground) Primary I/O Logic Level - 5V TTL Mechanical Specifications Description Units Value Agency Approvals - CE Class A (EMC), CE Class A (LVD), cUL, RoHS, UL Size (H x W x D) mm (in) 186.7 x 111.8 x 36.8 (7.4 x 4.4 x 1.4) Weight g (oz) 680 (24) Heatsink (Base) Temperature Range3 °C (°F) 0 - 65 (32 - 149) Storage Temperature Range °C (°F) -40 - 85 (-40 - 185) Form Factor - Panel Mount P1 Connector - 15-pin, female D-sub P2 Connector - 5-port, 5.08 mm spaced, screw terminal Notes 1. Maximum duration of peak current is ~2 seconds. 2. Lower inductance is acceptable for bus voltages well below maximum. Use external inductance to meet requirements. 3. Additional cooling and/or heatsink may be required to achieve rated performance. ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.com Sold & Serviced By:
- 4. Analog Servo Drive SX25A20 PIN FUNCTIONS P1 - Signal Connector Pin Name Description / Notes I/O 1 SIGNAL GND Signal Ground SGND 2 +REF-IN-A Differential reference input, maximum ±10 V, 40K input resistance I 3 -REF-IN-A I 4 SIGNAL GND Signal Ground SGND 5 +REF-IN-B Differential reference input, maximum ±10 V, 40K input resistance I 6 -REF-IN-B I 7 FAULT OUT TTL level (+5 V) output becomes high when power devices are disabled due to at least one of the following conditions: inhibit, output short circuit, over voltage, over temperature, power-up reset. O 8 INHIBIT/ENABLE IN TTL level (+5 V) inhibit/enable input. Pull to ground to enable drive (SW10-OFF). Pull to ground to inhibit drive (SW10-ON). Inhibit turns off all power devices. I 9 CURRENT MONITOR A OUT Phase Current Monitor. 7.25 V = amplifier peak rated current . O 10 CURRENT MONITOR B OUT O 11 CURRENT MONITOR C OUT O 12 SIGNAL GND Signal Ground SGND 13 RMS CURRENT LIMIT The RMS current limit can be controlled by an external voltage; 5 V = maximum RMS current limit. This is referenced to Signal Ground. No input to this pin is necessary to obtain maximum current. I 14 OVER-CURRENT FAULT OUT This transistor output becomes high if RMS current (in any phase) exceeds RMS current limit. This creates a fault condition. Drive will re-enable when the RMS current returns to values within the RMS current limit range. O 15 NC Not Connected (Reserved) - P2 - Power Connector Pin Name Description / Notes I/O 1 MOTOR A Motor Phase A O 2 MOTOR B Motor Phase B O 3 MOTOR C Motor Phase C O 4 PWR GND Power Ground (Isolated From Signal Ground) PGND 5 HIGH VOLTAGE DC Power Input I ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.com Sold & Serviced By:
- 5. Analog Servo Drive SX25A20 HARDWARE SETTINGS Switch Functions Switch Description Setting On Off 1 Input range selection. Input range can be set to ±5 V or ±10 V. Must be set the same as switch 2. ±5 V ±10 V 2 Input range selection. Input range can be set to ±5 V or ±10 V. Must be set the same as switch 1. ±5 V ±10 V 3 Peak Current Limit. Sets the peak current limit to 50% or 100% of the maximum peak current. Must be set the same as switch 4. 100% 50% 4 Peak Current Limit. Sets the peak current limit to 50% or 100% of the maximum peak current. Must be set the same as switch 3. 100% 50% 5 Reserved Function - - 6 Bit 0 of binary value for RMS current limit setting. See details below. 1 0 7 Bit 1 of binary value for RMS current limit setting. See details below. 1 0 8 Current loop proportional gain adjustment. ON by default. Decrease Increase 9 Current loop integral gain. Activates or deactivates integration. OFF by default. Inactive Active 10 Inhibit logic. Sets the logic level of inhibit pins. Active Low Active High Additional Details Switches 1 & 2, and switches 3 & 4 must be set the same. Switches 6 and 7 can be used to reduce the continuous current limit to a percentage given in the table below. 100% means no reduction. % Of Maximum Continuous Current Limit Switch 6 Switch 7 25 OFF OFF 50 ON OFF 100 OFF ON ON ON Through-hole Components† Location Description CF1* Current Loop Integrator. Three identical through-hole capacitors that can be added for more precise current loop tuning. See section below on Tuning with Through-hole components for more details. CF2* RF1* Current Loop Proportional Gain. Three identical through-hole resistors that can be added for more precise current loop tuning. See section below on Tuning with Through-hole components for more details. RF2* Tuning With Through-hole Components In general, the drive will not need to be further tuned with through-hole components. However, for applications requiring more precise tuning than what is offered by the potentiometers and dipswitches, the drive can be manually modified with through-hole resistors and capacitors as denoted in the above table. By default, the through-hole locations are not populated when the drive is shipped. Before attempting to add through-hole components to the board, consult the section on loop tuning in the installation notes on the manufacturer’s website. Some general rules of thumb to follow when adding through-hole components are: • A larger resistor value will increase the proportional gain, and therefore create a faster response time. • A larger capacitor value will increase the integration time, and therefore create a slower response time. Proper tuning using the through-hole components will require careful observation of the loop response on a digital oscilloscope to find the optimal through-hole component values for the specific application. †Note: Damage done to the drive while performing these modifications will void the warranty. ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.com Sold & Serviced By:
- 6. Analog Servo Drive SX25A20 MECHANICAL INFORMATION P1 - Signal Connector Connector Information 15-pin, female D-sub Mating Connector Details TYCO: Plug P/N 205206-3; Housing P/N 5745172-1; Terminals P/N 1658540-5 (loose) or 1658540-4 (strip) Included with Drive No CURRENT MONITOR A OUT9CURRENT MONITOR B OUT10CURRENT MONITOR C OUT11RMS CURRENT LIMIT13SIGNAL GND12OVER-CURRENT FALUT OUT14NC15INHIBIT/ENABLE IN8FAULT OUT7-REF-IN-B6+REF-IN-B5SIGNAL GND4-REF-IN-A3+REF-IN-A2SIGNAL GND1 P2 - Power Connector Connector Information 5-port, 5.08 mm spaced, screw terminal Mating Connector Details Not applicable Included with Drive Not applicable MOTOR A1MOTOR B2MOTOR C3PWR GND4HIGH VOLTAGE5 ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.com Sold & Serviced By:
- 7. Analog Servo Drive SX25A20 MOUNTING DIMENSIONS ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.com Sold & Serviced By:
- 8. Analog Servo Drive SX25A20 PART NUMBERING INFORMATION ADVANCED Motion Controls analog series of servo drives are available in many configurations. Note that not all possible part number combinations are offered as standard drives. All models listed in the selection tables of the website are readily available, standard product offerings. ADVANCED Motion Controls also has the capability to promptly develop and deliver specified products for OEMs with volume requests. Our Applications and Engineering Departments will work closely with your design team through all stages of development in order to provide the best servo drive solution for your system. Equipped with on-site manufacturing for quick- turn customs capabilities, ADVANCED Motion Controls utilizes our years of engineering and manufacturing expertise to decrease your costs and time-to-market while increasing system quality and reliability. Examples of Modifications and Customized Products Integration of Drive into Motor Housing Integrate OEM Circuitry onto Drive PCB Mount OEM PCB onto Drive Without Cables Custom Control Loop Tuned to Motor Characteristics Multi-axis Configuration for Compact System Custom I/O Interface for System Compatibility Custom PCB and Baseplate for Optimized Footprint Preset Switches and Pots to Reduce User Setup RTV/Epoxy Components for High Vibration Optimized Switching Frequency OEM Specified Connectors for Instant Compatibility Ramped Velocity Command for Smooth Acceleration OEM Specified Silkscreen for Custom Appearance Remove Unused Features to Reduce OEM Cost Increased Thermal Limits for High Temp. Operation Application Specific Current and Voltage Limits Feel free to contact Applications Engineering for further information and details. Available Accessories ADVANCED Motion Controls offers a variety of accessories designed to facilitate drive integration into a servo system. Visit www.a-m-c.com to see which accessories will assist with your application design and implementation. Power Supplies Shunt Regulators Drive(s) Filter Cards To Motor All specifications in this document are subject to change without written notice. Actual product may differ from pictures provided in this document. A20- B or BX:Brushless drive. Maximum peak current rating in Amps. Peak voltage rating scaled 1:10 in Volts.:DC Power SupplyBE:Encoder Velocity Mode AvailableBD:PWM CommandBDC:PWM Command, Closed Current LoopS or SX:Commutated Sine CommandAssigned a letter (A through Z) by manufacturer. AC:AC Power SupplyFAC:AC Power Connecter Relocated to the FrontI:Optical IsolationIsolation Option** 25SX-QD:Quick Disconnect* Options available for orders with sufficient volume. Contact ADVANCED Motion Controls for more information. ** Isolation comes standard on all AC supply drives and most DC supply drives 200V and above. Consult selection tables of the website or drive datasheet block diagram to see if isolation is included. Additional Options*Drive TypePeak CurrentPeak VoltageRevisionPower Supply ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.com Sold & Serviced By: