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Alarms, faults and system messages
9.4 List of alarms and faults
Frequency inverters with Control Units CU230P-2 HVAC, CU230P-2 DP, CU230P-2 CAN
Operating Instructions, 01/2011, FW 4.4, A5E02430659B AD
301
Number Cause
Remedy
F30005
I2t converter overload
Check the rated currents of the motor and Power Module.
Reduce current limit p0640.
When operating with U/f characteristic: Reduce p1341.
F30011
Line phase failure
Check the converter's input fuses.
Check the motor cables.
F30015
Motor cable phase failure
Check the motor cables.
Increase the ramp-up or ramp-down time (p1120).
F30021
Ground fault
•
Check the power cable connections.
•
Check the motor.
•
Check the current transformer.
•
Check the cables and contacts of the brake connection (a wire might
be broken).
F30027
Time monitoring for DC link pre-
charging
Check the supply voltage at the input terminals.
Check the line voltage setting (p0210).
F30035
Overtemperature, intake air
F30036
Overtemperature, inside area
•
Check whether the fan is running.
•
Check the fan filter elements.
•
Check whether the ambient temperature is in the permissible range.
F30037
Rectifier overtemperature
See F30035 and, in addition:
•
Check the motor load.
•
Check the line phases
A30049
Internal fan defective
Check the internal fan and if required replace.
A30502
DC link overvoltage
•
Check the unit supply voltage (p0210).
•
Check the dimensioning of the line reactor.
A30920
Temperature sensor fault
Check that the sensor is connected correctly.
F30059
Internal fan defective
Check the internal fan and if required replace.
For further information, please refer to the List Manual.
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