Section 1
General Information
5-2 Troubleshooting
MN722
Table 5-1 Converter Control Board Fault Messages
FAULT MESSAGE
DESCRIPTION
Current Sens FLT
Defective phase current sensor or open circuit detected between control board and current
sensor.
DC Bus High
Bus over voltage condition occurred.
DC Bus Low
Bus under voltage condition occurred.
GND FLT
Low impedance path detected between an output phase and ground.
High INIT CUR
Phasing between main power connections, zero crossing detectors, line reactor and
control does not match.
ID:No Feedback
Control board installed in power base that does not have current feedback and current
feedback is required.
INT Over-Temp
Temperature of control heatsink exceeded safe level.
Invalid Base ID
Control does not recognize power base ID.
Logic Supply FLT
Logic power supply not working properly.
Lost AB Phase
Missing phase detected by
m
P.
Lost BC Phase
Missing phase detected by
m
P.
Lost User Data
Battery backed RAM parameters have been lost or corrupted.
When fault cleared (Reset), the control should reset to factory preset values.
Low INIT Bus V
Insufficient bus voltage on startup.
Memory Error
EEPROM error occurred. Contact Baldor.
m
P Reset
Watchdog timer detected error.
New Base ID
Control board sensed a different power base since last time it was powered up.
No Faults
Fault log is empty.
Overcurrent FLT
Instantaneous over current condition detected by bus current sensor.
Overload
Output current exceeded allowable rating.
PWR Base FLT
Desaturation of power device occurred or bus current threshold exceeded.
Sync To Line
Incorrect line phasing or frequency detected on startup.
Содержание 22H series
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