Varedan Technologies LA Series, LA-210-SA-S, LA-210-SA-T, LA-415-SA-S, LA-415-SA-T Product User Manual
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Varedan Technologies
LA Series
Stand-Alone Linear Amplifiers
Product User Guide
Revision A10
LA Stand-Alone Product User Guide
Record of Revisions
Rev Date Valid For Description
A1 07/20/2011 All units Initial release
A2 10/15/2011 All units Revise part numbering
A3 11/11/11 All units Add connection drawing
A4 6/1/2012 All units Correct mating CPC part numbers
A5 6/18/2012 All units Add J8 Male pinout
A6 7/27/2012 4016-RC Add optical isolation for new front panel
A7 10/11/12 All units Add 800W version
A8 08/11/14 All units Fix limit - opto input drawing
A9 10/24/14 All units Revise Appendix A
A10 11/14/14 All units Add e and f commands, update LA525 settings
A11 11/18/14 All units Autobalance update, connector updates
A12 12/23/14 All units Update opto section
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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.
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LA Stand-Alone Product User Guide
Revision A7
Contents
1 Introduction .......................................................................................................................................... 6
1.1 Model Numbering ............................................................................................................................. 7
1.2 Specifications 200W, 400W, 500W ................................................................................................. 7
1.3 Specifications 800W......................................................................................................................... 8
1.4 Safety Information ............................................................................................................................ 9
1.4.1 Grounding ..................................................................................................................................... 9
1.4.2 Hazardous Voltage Information .................................................................................................... 9
2 System Installation............................................................................................................................. 10
2.1 Mechanical Dimensions ................................................................................................................. 10
2.1.1 200W, 400W, 500W Case Dimensions ...................................................................................... 10
2.1.2 800W Case Dimensions ............................................................................................................. 11
2.2 Selecting a mounting area.............................................................................................................. 12
2.3 Front Panel..................................................................................................................................... 13
................................................................................................................................................................. 13
2.3.1 AC Input...................................................................................................................................... 14
2.3.1.1 Changing the AC input configuration ...................................................................................... 14
2.4 Interface Connections .................................................................................................................... 15
2.4.1 Motor Connector (J1) CPC-14 .................................................................................................... 15
2.4.2 USB Connector (J2) USB B........................................................................................................ 15
2.4.3 Command B+ Input BNC (J4) ..................................................................................................... 15
2.4.4 Command A+ Input BNC (J5) ..................................................................................................... 15
2.4.5 Enable Input BNC (J6)................................................................................................................ 15
2.4.6 Fault Output BNC (J7) ................................................................................................................ 15
2.4.7 Signal Connector Electrical Interface.......................................................................................... 16
2.4.7.1 J8 & J9 Electrical Interface, Optically Isolated ....................................................................... 16
2.4.7.2 J8 & J9 Electrical Interface, Non-isolated ............................................................................... 17
2.4.8 Signal Connector (J8) DB-15 Female......................................................................................... 18
2.4.9 Signal Connector (J8) DB-15 Male ............................................................................................. 19
2.4.10 RS232 Connector (J3) DB-9F..................................................................................................... 20
2.4.11 Auxiliary I/O Connector (J9) DB-9M............................................................................................ 21
2.4.12 7-Segment Display...................................................................................................................... 22
3 Establishing Communications............................................................................................................ 24
3.1 RS232 Serial Interface ................................................................................................................... 24
3.2 USB Interface ................................................................................................................................. 24
3.3 Serial Commands........................................................................................................................... 25
3.3.1 A – Alarm Reset.......................................................................................................................... 25
3.3.2 B – AutoBalance ......................................................................................................................... 25
3.3.3 E – Enable Status ....................................................................................................................... 25
3.3.4 e - Enable Level.......................................................................................................................... 25
3.3.5 F – Factory Defaults.................................................................................................................... 25
3.3.6 f - Fault Output Level .................................................................................................................. 25
3.3.7 H – Help...................................................................................................................................... 25
3.3.8 L – List all parameters ................................................................................................................ 25
3.3.9 M – Mode.................................................................................................................................... 26
3.3.10 R – Reset.................................................................................................................................... 26
3.3.11 S – Save Parameters.................................................................................................................. 26
3.3.12 Y – Display Fault History............................................................................................................. 26
3.3.13 YC – Clear Fault History ............................................................................................................. 26
3.3.14 YS – Display SOA Fault History.................................................................................................. 26
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LA Stand-Alone Product User Guide
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4 Serial Parameter Settings .................................................................................................................. 27
4.1 P – Parameter Command .............................................................................................................. 27
4.2 Software Parameter Setting Table Summary................................................................................. 28
5 Troubleshooting ................................................................................................................................. 31
5.1 Autobalance.................................................................................................................................... 31
6 Appendix A – Serial Interface Details................................................................................................. 32
6.1 Sign on Message............................................................................................................................ 32
6.2 Alarm Messages............................................................................................................................. 33
6.3 Autobalance Messages .................................................................................................................. 33
6.4 Enable Status Messages................................................................................................................ 33
6.5 Factory Default Message................................................................................................................ 34
6.6 Help Messages............................................................................................................................... 34
6.7 List Messages ................................................................................................................................ 35
6.8 Mode Command Messages ........................................................................................................... 35
6.9 Save Parameters Message ............................................................................................................ 35
6.10
Fault History Messages .............................................................................................................. 36
6.11
Clear Fault History Message....................................................................................................... 36
6.12
SOA Fault History Messages...................................................................................................... 37
7 Appendix B – Firmware Updates ....................................................................................................... 38
8 Sales and Service .............................................................................................................................. 39
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LA Stand-Alone Product User Guide
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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
Available in single/two-phase or 3-phase models
Commonly available front panel connectors for easy wiring
Single phase 110 or 220 VAC input is only power required for operation
All required power supplies are contained in the box
Factory configurable transformer for various bus voltage options
Front panel status indicator shows amplifier status
Integrated fans provide sufficient cooling for most applications
USB or RS-232 communication capability
Flexible mounting options for bottom or side mounting
Simple setup and operation
Since the Stand Alone contains a LA amplifier module, we recommend referring to the LA Series
Technical Reference manual for the modules as well. That document is available on our website.
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Continuous Power Dissipation (25°C)
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
Parameter
LA-210-SA-S LA-210-SA-T LA-415-SA-S LA-415-SA-T LA-525-SA-S LA-525-SA-T
Output Phases 1 or 2 3 1 or 2 3 1 or 2 3
Peak Output Current 10A 15A 25A
Continuous Output Current 2.5A 5A 10A
Peak Output Power (25°C) 400W 1200W 1500W
200W 400W 500W
Weight 22.0lbs
Size - Height 7.87 in.
Size - Length x Width 12.17 in. x 6.28 in.
Motor Bus Voltage – Bipolar +/-56VDC (Contact factory for other transformer choices)
Max. Heat Sink Temperature 70°C
Current Loop Bandwidth* up to 10kHz
Operating Modes Sinusoidal (w/ external commutation) / Trapezoidal
Absolute Overcurrent Trip Time 50ms
Hall Sensor Supply (+5 Ext.) +5V @ 100mA max.
Command Signal (A and B inputs) +/-10V Single-Ended, +/-20V Differential
Power Requirements 120VAC, 10A or 230VAC, 5A
Fuse 8A Slow Blow 10A Slow Blow
Notes: 1 - Single-phase models can drive 2 motor coils using ½ the bus voltage by connecting one side of
the motor coil to the phase output and the other to ground.
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ontinuous Power Dissipation (25°C)
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 3
Peak Output Current 30A
Continuous Output Current 15A
Peak Output Power (25°C) 1500W
C
800W
Weight 26.0lbs
Size - Height 7.93 in.
Size - Length x Width 17.70 in. x 8.75 in.
Motor Bus Voltage – Bipolar +/-56VDC (Contact factory for other transformer choices)
Max. Heat Sink Temperature 70°C
Current Loop Bandwidth* up to 10kHz
Operating Modes Sinusoidal (w/ external commutation) / Trapezoidal
Absolute Overcurrent Trip Time 50ms
Hall Sensor Supply (+5 Ext.) +5V @ 100mA max.
Command Signal (A and B inputs) +/-10V Single-Ended, +/-20V Differential
Power Requirements 120VAC, 15A or 230VAC, 7.5A
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LA Stand-Alone Product User Guide
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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.
The LA StandAlone must be plugged into a properly grounded AC outlet.
Failure to provide this ground could result in a fatal electric shock.
Verify ground continuity to all metal pieces on the system.
Metal components bolted only to granite may not be grounded. Black anodized and
1.3.2 Hazardous Voltage Information
CAUTION
painted surfaces are not conductive.
Hazardous voltages are present at the motor output terminals and within the sheet
metal enclosure. Disconnect the AC power before plugging / unplugging any
connections or before servicing or disassembling the enclosure.
CAUTION
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LA Stand-Alone Product User Guide
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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
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LA Stand-Alone Product User Guide
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2.1.2 800W Case Dimensions
A
17.28
0.21
A
4.03
7.93
A
A
1.94
17.70
8.75
A
17.28
1.22
A
Notes:
A: 0.2in x 0.313in Slot for UNC 10-32 Screws (8 places)
1) All dimensions in inches
6.22
A
A
0.21
Figure 2: LA StandAlone Dimensions for 800W units
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LA Stand-Alone Product User Guide
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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.
Have humidity above 80% or are susceptible to moisture or coolant.
Are prone to corrosive or flammable materials.
Have an ambient temperature higher than 85°F (30°C).
Vibrate, are susceptible to vibration or that could transmit the cooling fan vibration to sensitive
test equipment.
Note: The StandAlone’s allowable power output is limited by the amplifier heatsink temperature. Any
reduction in cooling capability will be directly proportional to a reduction in performance.
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