GE AF-650 GP Programming Manual page 172

Troubleshooting
connections from motor – encoder – to frequency
converter. Select motor feedback function in H-20 Motor
Feedback Loss Function. Adjust tracking error band in
H-25 Tracking Error and H-27 Tracking Error Ramping.
ALARM 79, Illegal power section configuration
The scaling card is the incorrect part number or not
installed. Also MK102 connector on the power card could
not be installed.
ALARM 80, Drive initialised to default value
Parameter settings are restored to factory settings after a
manual reset. Reset the unit to clear the alarm.
ALARM 83, Illegal option combination
The mounted options are not supported to work together.
WARNING 89, Mechanical brake sliding
The hoist brake monitor has detected a motor speed > 10
RPM.
ALARM 90, Feedback monitor
Check the connection to encoder/resolver option and
eventually replace the OPCENC or OPCRES.
WARNING/ALARM 104, Mixing fan fault
The fan monitor checks that the fan is spinning at power-
up or whenever the mixing fan is turned on. If the fan is
not operating, then the fault is annunciated. The mixing-
fan fault can be configured as a warning or an alarm trip
by SP-53 Fan Monitor.
Troubleshooting Cycle power to the frequency converter
to determine if the warning/alarm returns.
ALARM 246, Power card supply
This alarm is only for 6x unit size frequency converters. It is
equivalent to Alarm 46. The report value in the alarm log
indicates which power module generated the alarm:
1 = left most inverter module.
2 = middle inverter module in 62 or 64 frequency
converter.
2 = right inverter module in 61 or 63 frequency
converter.
3 = right inverter module in 62 or 64 frequency
converter.
5 = rectifier module.
WARNING 250, New spare part
A component in the frequency converter has been
replaced. Reset the frequency converter for normal
operation.
WARNING 251, New typecode
The power card or other components have been replaced
and the typecode changed. Reset to remove the warning
and resume normal operation.
AF-650 GP Programming Guide
DET-618C
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