Machine check, I3 comm loss, C3 comm loss – Rockwell Automation 21G PowerFlex 750-Series AC Drives Programming Manual User Manual
Page 323

Rockwell Automation Publication 750-PM001J-EN-P - October 2014
323
Troubleshooting
Chapter 6
331
332
333
I1 Comm Loss
I2 Comm Loss
I3 Comm Loss
Resettable
Fault
Coast
A communications fault has occurred between the main control board
and the power layer interface board on inverter n.
341
342
343
C1 Comm Loss
C2 Comm Loss
C3 Comm Loss
Resettable
Fault
Coast
A communications fault has occurred between the main control board
and the converter gate board on converter n.
351
352
353
In Cur Share L1
In Cur Share L2
In Cur Share L3
Alarm 1
There is an input current sharing imbalance between parallel converters
in the AC line indicated that is greater than 15% of the converter rated
current.
357
358
359
In Vlt Imbal L12
In Vlt Imbal L23
In Vlt Imbal L31
Alarm 1
There is a input line voltage imbalance between parallel converters in
the AC lines indicated that is greater than 5% of the converter rated
voltage.
360
N-1 See Manual
Resettable
Fault
Coast
The number of active inverters has been reduced from the original
parallel configuration.
Refer to
N-1 and Re-Rate Functions on page 341
361
Rerate See Manual
Resettable
Fault
Coast
The drive rating has changed from the original parallel configuration.
Refer to
N-1 and Re-Rate Functions on page 341
362
Cnv/Inv Mismatch
Alarm 2
There is a voltage class mismatch between the installed parallel
inverters and converters.
363
CBP/Inv Mismatch
Alarm 2
There is a voltage class mismatch between the installed parallel
inverters and common DC bus precharge units.
364
CBP Num Mismatch
Alarm 2
The number of active inverters and active common DC bus precharge
units does not match.
365
Zero Cnv/Prechrg
Alarm 2
No converter or common DC bus precharge unit exists.
366
Cnv Num Mismatch
Alarm 2
The number of active inverters and active converters does not match.
371
372
P1 Comm Loss
P2 Comm Loss
Resettable
Fault
Coast
A communications fault has occurred between the main control board
and the DC precharge control board on the common DC bus precharge
unit n.
380
PWM FPGA Overrun
Alarm 1
The time limit on the PWM write to the FPGA was exceeded.
900
900
Resettable
Fault
Coast
Critical input exception.
Cycle power to clear this fault. Contact technical support.
901
Machine Check
Resettable
Fault
Coast
Internal error.
Replace the main control board.
902
Data Storage Error
Resettable
Fault
Coast
Cache memory corrupt.
Replace the main control board.
903
Instruction Storage Error
Resettable
Fault
Coast
Cache memory corrupt.
Replace the main control board.
905
Alignment Error
Resettable
Fault
Coast
Pointer is pointing to a non-boundary member.
Obtain test points and check grounding.
906
Program Error
Resettable
Fault
Coast
Bad memory read.
Check grounding or replace the main control board.
907
Floating Point Unit Not
On
Resettable
Fault
Coast
Firmware issue.
Obtain test points.
909
Aux Processor Not On
Resettable
Fault
Coast
Auxiliary processor interrupt.
Cycle power to clear this fault. Contact technical support.
912
Watchdog
Resettable
Fault
Coast
Timer counted down, reached 0, and fault occurred.
Replace the main control board.
913
Data TLB Error
Resettable
Fault
Coast
Processor attempted to access non-boundary memory.
Check grounding or replace the main control board.
914
Instruction TLB Error
Resettable
Fault
Coast
Processor attempted to access non-boundary memory.
Check grounding or replace the main control board.
Event
No.
Fault/Alarm Text
Type
Fault
Action
Configuration
Parameter
Auto
Reset
Description/Action(s)