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3870 Del Amo Blvd. Suite 503, Torrance CA, 90503
www.varedan.com
LA Series Linear Servo Amplifier
LA-800 Series
LA-1500 Series
Technical Reference Manual
Manual Revision: D
代理商：北京慧摩森 电子系统技术有限公司
地址：北京市海淀区学院路7号弘彧大厦1510
电话：010-62311872
传真：010-62316782
E-mail:sales@bjsm.com.cn www.bjsm.com.cn
varedan中文网址：www.varedan.net
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Table of Contents
Related Manuals for Varedan Technologies LA-1500 Series
Summary of Contents for Varedan Technologies LA-1500 Series
- Page 1 LA Series Linear Servo Amplifier LA-800 Series LA-1500 Series Technical Reference Manual Manual Revision: D 3870 Del Amo Blvd. Suite 503, Torrance CA, 90503 代理商：北京慧摩森 电子系统技术有限公司 地址：北京市海淀区学院路7号弘彧大厦1510 www.varedan.com 电话：010-62311872 传真：010-62316782 E-mail:sales@bjsm.com.cn www.bjsm.com.cn varedan中文网址：www.varedan.net...
- Page 2 Eastern Region Sales & Support Phone: 860-295-0048 www.varedan.com This document contains proprietary and confidential information of Varedan Technologies, LLC and is protected under Federal copyright law. The information in this document is subject to change without notice. No part of this document may be reproduced or transmitted in any form without the express written consent of Varedan Technologies, LLC.
- Page 3 LA Series Linear Servo Amplifier Technical Reference Manual CAUTION! READ THIS SECTION BEFORE PROCEEDING. Warning! Potentially lethal voltages exist within the amplifier when power is applied. Never attempt to handle or probe the amplifier with power applied. This product contains static sensitive devices and requires proper handling with ESD protection.
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Page 4: Table Of Contents
SPECIFICATIONS..........................8 MODEL NUMBERING ...........................9 PROTECTIVE FEATURES .........................10 OPERATIONAL DESCRIPTION ......................11 JUMPER SETTINGS ...........................11 6.1 LA-800 SERIES JUMPER SETTINGS ..................12 6.2 LA-1500 SERIES JUMPER SETTINGS ..................13 6.3 JUMPER DESCRIPTIONS ......................14 CONNECTOR CONFIGURATIONS....................15 7.1 J1 SIGNAL CONNECTOR ......................15 7.2 J2 BIAS POWER CONNECTOR ....................15... - Page 5 LA Series Linear Servo Amplifier Technical Reference Manual 8.4 L.E.D. ERROR CODES AND MEANING ..................20 8.5 STATUS INDICATOR/REMOTE DISPLAY PORT ..............22 8.6 SERIAL PORT ...........................22 8.6.1 SERIAL COMMANDS........................23 8.6.2 SERIAL PARAMETER SETTINGS .....................25 8.6.2.1 SOFTWARE PARAMETER SETTING TABLE SUMMARY ............26 BALANCING ............................27 9.1 AUTOBALANCE ..........................27...
- Page 6 Figure 6. Typical Connections Single-Phase Models with “S” suffix.......... 33 Figure 7. Typical Connections Three-Phase Models with “T” suffix .......... 33 Figure 7. Typical Connections Three-Phase Models with “T” suffix .......... 34 Figure 8. LA-800 Series Mechanical Dimensions ..............35 Figure 9. LA-1500 Series Mechanical Dimensions ..............36...
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Page 7: Introduction
LA Series Linear Servo Amplifier Technical Reference Manual 1 Introduction The LA series of Linear Amplifiers are the perfect choice for systems requiring low radiated noise and zero distortion from the drive electronics. These high power current mode linear amplifiers are well suited to drive low inductance/resistance loads such as brushless and brush servo motors or voice coils. -
Page 8: Specifications
Absolute Overcurrent Trip Time 50ms Hall Sensor Supply (+5 Ext.) +5V @ 100mA max. Command Signal (A and B inputs) +/-10V Single-Ended, +/-20V Differential LA-1500 Series LA-1535 LA-1545 LA-1555 Peak Output Current Continuous Output Current Peak Output Power (25° C) -
Page 9: Model Numbering
LA Series Linear Servo Amplifier Technical Reference Manual 3 Model Numbering Amplifier Module The LA Series Linear Amplifier modules are available in various power options and in either single-phase or 3-phase models. 800 Series Model Number Breakdown: LA-830-T Linear Amplifier Power Level (see table) S=Single Phase, T= 3 phase 1500 Series... -
Page 10: Protective Features
LA Series Linear Servo Amplifier Technical Reference Manual 4 Protective Features DSP Fault – Set when the internal DSP checksum fails following reset NVM Fault – Set when NVM checksum fails following reset. Parameter defaults set. External +5V – Set when on board +5V supply for Halls is out of range Autobalance Fault –... -
Page 11: Operational Description
LA Series Linear Servo Amplifier Technical Reference Manual 5 Operational Description Before applying power to the amplifier be sure to read all sections in this document. Upon power up of the +/- 15V bias supply, the amplifier derives all the necessary internal voltages for operation related to the logic and output drivers. -
Page 12: La-800 Series Jumper Settings
LA Series Linear Servo Amplifier Technical Reference Manual 6.1 LA-800 Series Jumper Settings F G H Figure 1. Jumper Locations Sine/Hall Mode Selection* Continuous Overcurrent Mode JP2-A Trip Level Amps (model specific) Sine Mode Open LA-830 LA-835 LA-840 JP1-A JP1-B Hall Mode Open Open *See Notes 1&2... -
Page 13: La-1500 Series Jumper Settings
LA Series Linear Servo Amplifier Technical Reference Manual 6.2 LA-1500 Series Jumper Settings F G H Figure 2. Jumper Locations Sine/Hall Mode Selection* Continuous Overcurrent Mode JP2-A Trip Level Amps (model specific) Sine Mode Open LA-1535 LA-1545 LA-1555 JP1-A JP1-B... -
Page 14: Jumper Descriptions
LA Series Linear Servo Amplifier Technical Reference Manual 6.3 Jumper Descriptions JP1-A, B – Continuous Overcurrent Level – This setting determines the continuous level of current allowed by the amplifier. Any phase current value above this setting causes an internal timer to run. If the timer reaches the set value for Overcurrent Trip Time, the drive disables and the “L”... -
Page 15: Connector Configurations
LA Series Linear Servo Amplifier Technical Reference Manual 7 Connector Configurations 7.1 J1 Signal Connector Pin Function DAC Phase A+ Input Used in both Single Ended and Differential modes DAC Phase A- Input Used only in Differential mode DAC Phase B+ Input Used in both Single Ended and Differential modes. -
Page 16: J4 Bus Power Connector
LA Series Linear Servo Amplifier Technical Reference Manual 7.4 J4 Bus Power Connector Function +Bus Power Bus Common (Ground) –Bus Power 7.5 J5 Motor Connector Function Phase A Output Phase B Output. Note: For Single-phase operation, use Phases B and C. Phase C Output Motor Ground (for cable shield and/or FG connection if used) (J5 pin 4 is internally connected to amplifier common or ground) -
Page 17: J8 Status Output Connector
LA Series Linear Servo Amplifier Technical Reference Manual 7.8 J8 Status Output Connector Function 7 Segment display – A 7 Segment display – B 7 Segment display – C 7 Segment display – D 7 Segment display – E 7 Segment display – F 7 Segment display –... -
Page 18: Connector Part Numbers
LA Series Linear Servo Amplifier Technical Reference Manual 7.11 Connector Part Numbers Connector Manufacturer Mate P/N Digi-Key # 3408-1302 3452-7600 MSD16K-ND Phoenix 17-59-03-3 17-57-035 277-1013-ND 3793-1302 3473-7600 MSD10K-ND Thomas & Betts 4PCR-03-008 Thomas & Betts 4PCR-04-008 Molex 90147-1212 Contact Factory Molex 90147-1212 Contact Factory... -
Page 19: User Interfaces
The full part number of the software can be displayed during power-on-reset by holding in the push button and applying bias power. The part number will be displayed in the following format: Example: 4002-12.2.0-2 “4002”= Varedan Technologies product code “12” = Upper level part number designator (“10”=LA-400, “11”=LA-525,“12”=LA4-07,13”=LA-200 ) -
Page 20: Error Codes And Meaning
LA Series Linear Servo Amplifier Technical Reference Manual 8.4 L.E.D. Error Codes and Meaning The following table lists the L.E.D. error codes and their meaning. If multiple errors are present, the display will cycle through all the error codes, displaying each for ½ second. Amp ok, motor current enabled. - Page 21 LA Series Linear Servo Amplifier Technical Reference Manual Hall Error – Set when hall sequence is invalid (hall inputs are all 1’s or all 0’s) Fatal Error – Set if the DSP encounters an unidentified problem. Amplifier Over Temp – Set when the heat sink temperature is above 70 C. Motor Over Temp –...
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Page 22: Status Indicator/Remote Display Port
LA Series Linear Servo Amplifier Technical Reference Manual 8.5 Status indicator/Remote Display Port Connector J8 can be used to monitor system status via a parallel bus or remote display. The data written to this port is the same data used to drive the 7-segment display. An “on” segment results in the corresponding J8 pin to be at +5 volts. -
Page 23: Serial Commands
LA Series Linear Servo Amplifier Technical Reference Manual 8.6.1 Serial Commands The following commands are supported over the serial port communications interface. A – Alarm Reset This command allows viewing or resetting the alarm status. “A” with no parameter is used to read the alarm status. - Page 24 LA Series Linear Servo Amplifier Technical Reference Manual Y – Display Fault History The last 8 errors from the fault history buffer are displayed. If a fault occurs while the drive is enabled, the fault is saved into the fault history buffer. The last 8 errors are saved in NVM and recalled for display when this command is issued.
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Page 25: Serial Parameter Settings
LA Series Linear Servo Amplifier Technical Reference Manual 8.6.2 Serial Parameter Settings The user parameter settings are configured either by jumpers or via the serial interface. When jumpers are used, the serial interface can only be used to read the jumper settings. If no jumpers are installed, the software settings are used. -
Page 26: Software Parameter Setting Table Summary
LA Series Linear Servo Amplifier Technical Reference Manual 8.6.2.1 Software Parameter Setting Table Summary P0 – Transconductance switch value P0 Value Transconductance Ratio DAC Single End/Differential Differential (Bipolar) Differential (Bipolar) Differential (Bipolar) Differential (Bipolar) Single Ended (Unipolar) Single Ended (Unipolar) Single Ended (Unipolar) Single Ended (Unipolar P1 –... -
Page 27: Balancing
LA Series Linear Servo Amplifier Technical Reference Manual 9 Balancing Motor phase balancing is performed to minimize torque ripple in the motor caused by impedance variations in the motor windings and to compensate for component tolerance variations in the amplifier drive circuits. The intent of this adjustment is to get the three motor voltages approximately equal taking into account polarity. -
Page 28: Manual Balance
LA Series Linear Servo Amplifier Technical Reference Manual 9.2 Manual Balance The procedure to manually balance the phases is shown below. A voltmeter is required to measure the phase voltages. Refer to Figure 2 on the next page for the location of the balance pots. The procedure to manually balance the phases: 1) With power off, connect the Phase A motor lead to J5-1. -
Page 29: Test Points
LA Series Linear Servo Amplifier Technical Reference Manual 10 Test Points Five user test points are provided on the amplifier, TP1-TP5. They are located at the top of the amplifier, between JP2 and the Pushbutton switch. TP1 – I Out – This test point provides an analog voltage proportional to the current output of the amplifier. The scaling for this output is 6.6 amps per volt. -
Page 30: Figure 3 - Location Of Jumpers, Balance Potentiometers And Test Points
LA Series Linear Servo Amplifier Technical Reference Manual Figure 3 – Location of Jumpers, Balance Potentiometers and Test Points J10 Serial Jumpers Test Points Connector Reset & Autobalance J1 Main Signal Connector... -
Page 31: Figure 4. Functional Block Diagram - All Models
LA Series Linear Servo Amplifier Technical Reference Manual Figure 4. Functional Block Diagram – All Models... -
Page 32: Figure 5. Installation Drawing Details
LA Series Linear Servo Amplifier Technical Reference Manual Figure 5. Installation Drawing Details S1 Reset & Autobalance J1 Signal J3 Halls J9 Motor Temp. J2 Bias Power +15VDC Common Common -15VDC... -
Page 33: Figure 6. Typical Connections Single-Phase Models With "S" Suffix
LA Series Linear Servo Amplifier Technical Reference Manual Figure 6. Typical Connections Single-Phase Models with “S” suffix... -
Page 34: Figure 7. Typical Connections Three-Phase Models With "T" Suffix
LA Series Linear Servo Amplifier Technical Reference Manual Figure 7. Typical Connections Three-Phase Models with “T” suffix... -
Page 35: Figure 8. La-800 Series Mechanical Dimensions
LA Series Linear Servo Amplifier Technical Reference Manual Figure 8. LA-800 Series Mechanical Dimensions 4.000 6-32 DETAIL - TEST POINTS AND 2.206 BALA NCE POTENTIOMETERS TOP VIEW Note 2 Note 2 REF. RESET / AUTOBALANCE MAIN SIGNAL MOTOR FEEDBACK 8.48 8.160 MOTOR REF. -
Page 36: Figure 9. La-1500 Series Mechanical Dimensions
LA Series Linear Servo Amplifier Technical Reference Manual Figure 9. LA-1500 Series Mechanical Dimensions... -
Page 37: Appendix A. Serial Communication Messages
LA Series Linear Servo Amplifier Technical Reference Manual Appendix A. Serial Communication Messages This section describes the details of the serial communication messages. The only white space character used in this protocol is the Space (ASCII 0x20). All lines are terminated with a Carriage Return and Line Feed (cr/lf) followed by a “>”... -
Page 38: Sign On Message
10.1 Sign on Message Upon power up or following a reset, the amplifier sends the following message. “Varedan Technologies, (c) 2007 Ver 4002-11-2.3.0-2” “>” In addition, if any faults are present, the fault status is show following the above message. -
Page 39: Enable Status Messages
LA Series Linear Servo Amplifier Technical Reference Manual 10.4 Enable Status Messages In response to the “E” command: If disabled with alarm: “DISABLED” cr/lf “Alarm = BUS UV” “>” If disabled without alarm: “DISABLED” “>” If enabled: “ENABLED” “>” 10.5 Factory Default Message In response to the “F”... -
Page 40: List Messages
LA Series Linear Servo Amplifier Technical Reference Manual 10.7 List Messages In response to the “L” command: “Bus+= 0 V” “Bus-=-0 V” “Vpha= 0 V” “Vphb= 0 V” “Vphc= 0 V” “Ipha= 0.0 A” “Iphb= 0.0 A” “Iphc= 0.0 A” “+15 = 15.2 V”... -
Page 41: Fault History Messages
LA Series Linear Servo Amplifier Technical Reference Manual 10.10 Fault History Messages In response to the “Y” command: cr/lf “Alarm History (Last to First)” cr/lf “Alarm = BUS UV” cr/lf “Alarm = 15VREF” cr/lf “Alarm = 15VREF” cr/lf “Alarm = BUS UV” cr/lf “Alarm = 15VREF”... -
Page 42: Soa Fault History Messages
LA Series Linear Servo Amplifier Technical Reference Manual 10.12 SOA Fault History Messages In response to the “YS” command: cr/lf “Saved SOA History” cr/lf “Cnts= 0” “MaxP= 0 W” “ActP= 0 W” “Bus+= 0.0 V” “Bus-=-0.0 V” “Vpha= 0.0 V” “Vphb= 0.0 V”...
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