Varedan Technologies LA Series Product User Manual

La series stand-alone linear amplifiers
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Varedan Technologies
LA Series
Stand-Alone Linear Amplifiers
Product User Guide
Revision A10

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Summary of Contents for Varedan Technologies LA Series

  • Page 1 Varedan Technologies LA Series Stand-Alone Linear Amplifiers Product User Guide Revision A10...
  • Page 2 LA Stand-Alone Product User Guide Record of Revisions Date Valid For Description 07/20/2011 All units Initial release 10/15/2011 All units Revise part numbering 11/11/11 All units Add connection drawing 6/1/2012 All units Correct mating CPC part numbers 6/18/2012 All units Add J8 Male pinout 7/27/2012 4016-RC...
  • Page 3 LA Stand-Alone Product User Guide Revision A7 Technical changes to improve performance may be made at any time without notice! All rights reserved. No part of this work may be reproduced in any form without written permission from Varedan Technologies. Page 3...
  • Page 4: Table Of Contents

    LA Stand-Alone Product User Guide Revision A7 Contents Introduction ............................6 Model Numbering ..........................7 Specifications 200W, 400W, 500W ....................7 Specifications 800W ......................... 8 Safety Information ..........................9 1.4.1 Grounding ............................. 9 1.4.2 Hazardous Voltage Information ....................9 System Installation ..........................10 Mechanical Dimensions .........................
  • Page 5: Revision A7 Page

    LA Stand-Alone Product User Guide Revision A7 Serial Parameter Settings ........................27 P – Parameter Command ......................27 Software Parameter Setting Table Summary................. 28 Troubleshooting ..........................31 Autobalance............................ 31 Appendix A – Serial Interface Details....................32 Sign on Message..........................32 Alarm Messages..........................
  • Page 6: Introduction

    LA Stand-Alone Product User Guide Revision A7 1 Introduction The LA Series Stand-Alone linear amplifier system is an AC line powered unit based on the LA series current-mode linear amplifiers. Some of the key features of this system: Available in 4 power levels...
  • Page 7: Model Numbering

    LA Stand-Alone Product User Guide Revision A7 Model Numbering The LA Series Stand-Alone Linear Amplifier System is available in various power options and in either single-phase or 3-phase models. Model Number Breakdown: LA-415-SA-T Linear Amplifier Power Level (see table) Stand Alone Package S=Single Phase, T= 3 phase 1.1 Specifications 200W, 400W, 500W...
  • Page 8: Specifications 800W

    LA Stand-Alone Product User Guide Revision A7 1.2 Specifications 800W Parameter LA-830-SA-S LA-830-SA-T Output Phases 1 or 2 Peak Output Current Continuous Output Current Peak Output Power (25° C) 1500W Continuous Power Dissipation (25° C) 800W Weight 26.0lbs Size - Height 7.93 in.
  • Page 9: Safety Information

    LA Stand-Alone Product User Guide Revision A7 1.3 Safety Information Read this information before operating this system. 1.3.1 Grounding The AC power connection to the box must have a connection to ground. CAUTION The LA StandAlone must be plugged into a properly grounded AC outlet. Failure to provide this ground could result in a fatal electric shock.
  • Page 10: System Installation

    LA Stand-Alone Product User Guide Revision A7 2 System Installation 2.1 Mechanical Dimensions 2.1.1 200W, 400W, 500W Case Dimensions Figure 1: LA StandAlone Dimensions for 200W, 400W and 500W units Page 10...
  • Page 11: 800W Case Dimensions

    LA Stand-Alone Product User Guide Revision A7 2.1.2 800W Case Dimensions 0.21 17.28 4.03 7.93 1.94 8.75 17.70 1.22 17.28 Notes: A: 0.2in x 0.313in Slot for UNC 10-32 Screws (8 places) 1) All dimensions in inches 6.22 0.21 Figure 2: LA StandAlone Dimensions for 800W units Page 11...
  • Page 12: Selecting A Mounting Area

    LA Stand-Alone Product User Guide Revision A7 2.2 Selecting a mounting area The unit should be mounted in a solid, clean, dry location with adequate ventilation. Avoid mounting areas that: Obstruct the intake or exhaust of the internal forced air cooling. Allow dust, debris to enter and contaminate the cooling capability of the drive.
  • Page 13: Front Panel

    LA Stand-Alone Product User Guide Revision A7 2.3 Front Panel AC Input Selector Panel AC Power Switch 115 / 230VAC ON / OFF AC Input Module Fan Exhaust / Exit 14 Pin CPC Motor Connector USB Connector Reset Switch LED Display Signal Connector RS232 Interface Aux.
  • Page 14: Ac Input

    LA Stand-Alone Product User Guide Revision A7 2.3.1 AC Input The LA Stand-Alone amplifier can accept AC input voltages of 100 – 120 and 208 - 240VAC at 47 – 63Hz. Note that the Stand-Alone amplifier utilizes an unregulated linear power supply. Therefore a higher AC input (for a given range) will provide a higher voltage to the spindle and allow the spindle to reach higher velocities.
  • Page 15: Interface Connections

    LA Stand-Alone Product User Guide Revision A7 2.4 Interface Connections 2.4.1 Motor Connector (J1) CPC-14 Pin # Description Motor Phase C or Single-Phase - Pin 1 Pin 3 Motor Phase B or Single-Phase + Pin 4 Pin 7 Motor Phase A (not used for Single-Phase) Pin 11 Pin 8 Pin 12...
  • Page 16: Signal Connector Electrical Interface

    LA Stand-Alone Product User Guide Revision A7 2.4.7 Signal Connector Electrical Interface The following drawings illustrate the electrical interface for the J8 & J9 signal connectors. Note that there are 2 configurations available from the factory, one with optical isolation and one without. Please be sure to use the correct drawing.
  • Page 17: J8 & J9 Electrical Interface, Non-Isolated

    LA Stand-Alone Product User Guide Revision A7 2.4.7.2 J8 & J9 Electrical Interface, Non-isolated The following drawing shows the non-isolated interface for J8 and J9. Note: Pin outs are shown for DB15M connector option. Refer to 2.4.8 or 2.4.9 as appropriate Page 17...
  • Page 18: Signal Connector (J8) Db-15 Female

    LA Stand-Alone Product User Guide Revision A7 2.4.8 Signal Connector (J8) DB-15 Female Note: Two different genders of J8 are used. Be sure to use the correct pin out (Male or Female). Pin 8 Pin 1 Pin 15 Pin 9 Pin # Description Common - Signal Ground...
  • Page 19: Signal Connector (J8) Db-15 Male

    LA Stand-Alone Product User Guide Revision A7 2.4.9 Signal Connector (J8) DB-15 Male Note: Two different genders of J8 are used. Be sure to use the correct pin out (Male or Female). Pin 1 Pin 8 Pin 9 Pin 15 Pin # Description Command A+ Input - +/- 10vdc command input.
  • Page 20: Rs232 Connector (J3) Db-9F

    LA Stand-Alone Product User Guide Revision A7 2.4.10 RS232 Connector (J3) DB-9F Pin 5 Pin 1 Pin 6 Pin 9 Pin # Description No Connection RS232 Receive - Data into amplifier RS232 Transmit - Data from amplifier No Connection Ground No Connection No Connection No Connection...
  • Page 21: Auxiliary I/O Connector (J9) Db-9M

    LA Stand-Alone Product User Guide Revision A7 2.4.11 Auxiliary I/O Connector (J9) DB-9M Pin 1 Pin 5 Pin 6 Pin 9 Pin # Description Ground to enable amplifier (switch closed). Pulled up to +5vdc. Motor Temperature Switch Input - Common - Use as return for Motor Temperature Switch. Common - Ground Hall C Input.
  • Page 22: 7-Segment Display

    LA Stand-Alone Product User Guide Revision A7 2.4.12 7-Segment Display The 7 segment LED display on the front panel shows the status of the controller in real-time. The following table lists the front panel LED display codes and their meaning. If multiple errors are present, the display will cycle through all the error codes, displaying each for ½...
  • Page 23 LA Stand-Alone Product User Guide Revision A7 Heatsink Over Temp – Set when the heat sink temperature is above 70 C. Remove power and allow the unit to cool before attempting to run again. Overcurrent – Set when amplifier detects an overcurrent condition. (“L”ow speed circuit breaker).
  • Page 24: Establishing Communications

    LA Stand-Alone Product User Guide Revision A7 Establishing Communications The LA StandAlone amplifier communicates via a RS232 port or USB port at 19200 baud. A serial communication program such as HyperTerminal can be used for communications. The standard settings are 8 data bits, 1 stop bit, no parity and no hardware or software handshaking. Settings Emulation = ANSIW.
  • Page 25: Serial Commands

    LA Stand-Alone Product User Guide Revision A7 3.3 Serial Commands The following commands are supported over the serial port communications interface. 3.3.1 A – Alarm Reset This command allows viewing or resetting the alarm status. “A” with no parameter is used to read the alarm status.
  • Page 26: M - Mode

    LA Stand-Alone Product User Guide Revision A7 3.3.9 M – Mode This command is used to view or set the commutation mode of the drive. M0 sets trapezoidal commutation, M1 sets Sinusoidal 2 phase input commutation. The “M command can only be used to view the commutation setting if jumpers are installed.
  • Page 27: Serial Parameter Settings

    LA Stand-Alone Product User Guide Revision A7 4 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 28: Software Parameter Setting Table Summary

    LA Stand-Alone Product User Guide Revision A7 4.2 Software Parameter Setting Table Summary P0 – Transconductance value P0 Value LA-210 LA-415 LA-525 DAC Single End/Differential 0.25 Differential (Bipolar) Differential (Bipolar) 0.75 Differential (Bipolar) Differential (Bipolar) 0.25 Single Ended (Unipolar) Single Ended (Unipolar) 0.75 Single Ended (Unipolar) Single Ended (Unipolar...
  • Page 29 LA Stand-Alone Product User Guide Revision A7 Figure 9. Typical Three-Phase Mode Connections Page 29...
  • Page 30 LA Stand-Alone Product User Guide Revision A7 Figure 10. Typical Single-Phase Mode Connections Page 30...
  • Page 31: Troubleshooting

    LA Stand-Alone Product User Guide Revision A7 Troubleshooting 5.1 Autobalance The amplifier has a built-in algorithm for balancing the linear amplifier power stage. Normally it is not necessary to perform this procedure as the amplifier stage is balanced at the factory. Due to the inherent offsets of the analog circuitry in the power stage, offsets may occur in the system over time that cause unwanted torque ripple.
  • Page 32: Appendix A - Serial Interface Details

    6.1 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 33: Alarm Messages

    LA Stand-Alone Product User Guide Revision A7 6.2 Alarm Messages Sent in response to “A” command or upon detection of alarm condition. 16 possible responses, 14 characters in length. "Alarm = DSP " "Alarm = NVM " "Alarm = HALLS " "Alarm = AMP OT"...
  • Page 34: Factory Default Message

    LA Stand-Alone Product User Guide Revision A7 6.5 Factory Default Message In response to the “F” command: "Loading Default Parameters" “>” 6.6 Help Messages In response to the “H” command: “Command List” “A<n> = Show/Reset Alarm Status” “E<n>= Set/View Enable Status Enable=1 Disable=0” “F = Load Factory Defaults”...
  • Page 35: List Messages

    LA Stand-Alone Product User Guide Revision A7 6.7 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” “-15 =-15.2 V”...
  • Page 36: Fault History Messages

    LA Stand-Alone Product User Guide Revision A7 6.10 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 37: Soa Fault History Messages

    LA Stand-Alone Product User Guide Revision A7 6.12 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” “Vphc= 0.0 V”...
  • Page 38: Appendix B - Firmware Updates

    LA Stand-Alone Product User Guide Revision A7 Appendix B – Firmware Updates It may become necessary to update the firmware in the controller if a new release of code becomes available, or if additional features are added. Updates are easily done in the field using a personal computer with a USB or RS-232 serial interface port and a small application program that sends the updated code to the controller from the host PC.
  • Page 39: Sales And Service

    LA Stand-Alone Product User Guide Revision A7 8 Sales and Service Varedan Technologies 3870 Del Amo Blvd Suite 503 Torrance, CA 90503 1-310-542-2320 www.varedan.com sales@varedan.com Page 39...

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