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CONTENTS
Page SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . 1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
ABBREVIATIONS AND EXPLANATIONS . . . . . . . . . . 2 Required Publications. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Getting Assistance from Rockwell Automation . . . 2
IDENTIFYING DRIVE COMPONENTS. . . . . . . . . . . .
Alternate Wire Lugs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Verify Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Configure the VFD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Commissioning the Unit. . . . . . . . . . . . . . . . . . . . . . . . . . 6
Check Internal Jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . 7
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting the Drive . . . . . . . . . . . . . . . . . . . . . . . . 8
•ICVC ALERT CODES
•ICVC ALARM CODES
•TEST EQUIPMENT NEEDED TO TROUBLESHOOT
•VERIFYING THAT DC BUS CAPACITORS ARE DISCHARGED
•HIGH TEMPERATURE ALARMS
•MAIN CONTROL BOARD (MCB) COMPONENTS
Checking Power Modules and Motor Input
with Input Power Off . . . . . . . . . . . . . . . . . . . . . . . . . . 22 → Servicing the Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
•REMOVING THE DRIVE
•RIGGING THE ENCLOSURE
•REPLACING THE GATEWAY
OPTION CARD)
•CHILL PLATE FAN AND INTERNAL FAN REPLACEMENT
Parts Identification and Location . . . . . . . . . . . . . . . . 26 APPENDIX A — WIRING SCHEMATICS . . . . . . .
APPENDIX B — OPTIONAL BACNET COMMUNICATIONS WIRING . . . . . . . . . . . . . . .
INTRODUCTION
The Carrier VFD option
ABBREVIATIONS AND EXPLANATIONS
Frequently used abbreviations in this manual include:
CCM | — Chiller Control Module |
DC | — Direct Current |
DPI | — Drive Peripheral Interface |
ENET | — Ethernet |
ICVC | — International Chiller Visual Controller |
IGBT | — Insulated Gate Bipolar Transistor |
I/O | — Inputs/Outputs |
IP | — Internet Protocol |
IPWM | — Inverter Pulse Width Modulation |
MCB | — Main Control Board |
MOV | — Metal Oxide Varistor |
PE | — Protective Earthing Conductor |
SIO | — Sensor Input/Output |
STS | — Status |
Required Publications — The Carrier VFD option
•The latest version of the PowerFlex
•The latest revision of the
Getting Assistance from Rockwell Automa-
tion — Contact the local Rockwell Automation sales office with any questions or problems relating to the products de- scribed in this manual. For technical support on drives between the hours of 7:00 am and 6:00 pm CST,
Before calling, have the following information available from the
•
•Carrier VFD Code
•
Fig. 1 — Allen Bradley Data Nameplate
IDENTIFYING DRIVE COMPONENTS
A chiller control schematic and a VFD schematic are in- cluded in Appendix A.
WARNING
DC bus capacitors retain hazardous voltages after input power has been disconnected. After disconnecting input power, wait five (5) minutes for the DC bus capacitors to discharge and then check the voltage with a voltmeter rated for the DC bus voltage to ensure the DC bus capacitors are discharged before touching any internal components. Fail- ure to observe this precaution could result in severe bodily injury or loss of life.
An isolated multimeter will be needed to measure DC bus voltage and to make resistance checks. The drive’s DC bus capacitors retain hazardous voltages after input power has been disconnected.
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