User Manual

4 Faults and alarms
4.2 List of faults and alarms
SINAMICS G120 CU230P-2 Control Units
732 List Manual (LH9), 04/2014, A5E33838102B AA
F30052 EEPROM data error
Message class: Hardware / software error (1)
Reaction: OFF2
Acknowledge: POWER ON
Cause: EEPROM data error of the power unit module.
Fault value (r0949, interpret decimal):
0, 2, 3, 4:
The EEPROM data read in from the power unit module is inconsistent.
1:
EEPROM data is not compatible to the firmware of the Control Unit.
Remedy: Replace power unit module.
F30055 Power unit: Braking chopper overcurrent
Message class: Braking Module faulted (14)
Reaction: OFF2
Acknowledge: IMMEDIATELY
Cause: An overcurrent condition has occurred in the braking chopper.
Remedy: - check whether the braking resistor has a short circuit.
- for an external braking resistor, check whether the resistor may have been dimensioned too small.
Note:
The braking chopper is only enabled again at pulse enable after the fault has been acknowledged.
A30057 Power unit: Line asymmetry
Message class: Network fault (2)
Reaction: NONE
Acknowledge: NONE
Cause: Frequencies have been detected on the DC link voltage that would suggest line asymmetry or failure of a line phase.
It is also possible that a motor phase has failed.
Fault F30011 is output if the alarm is present and at the latest after 5 minutes.
The precise duration depends on the power unit type and the particular frequencies. For booksize and chassis power
units, the duration also depends on how long the alarm has been active.
Alarm value (r2124, interpret decimal):
Only for internal Siemens troubleshooting.
Remedy: - check the line phase connection.
- check the motor feeder cable connections.
If there is no phase failure of the line or motor, then line asymmetry is involved.
- reduce the power in order to avoid fault F30011.
F30059 Power unit: Internal fan faulty
Message class: Auxiliary unit faulted (20)
Reaction: OFF2
Acknowledge: IMMEDIATELY
Cause: The internal power unit fan has failed and is possibly defective.
Remedy: Check the internal fan and replace if necessary.
A30065 (F, N) Voltage measured values not plausible
Message class: Power electronics faulted (5)
Reaction: NONE
Acknowledge: NONE
Cause: The voltage measurement supplies values that are not plausible
Bit01: Phase U.
Bit02: Phase V.
Bit03: Phase W.
Remedy: - Deactivate voltage measurement (p247.0 = 0).
- Deactivate flying restart with voltage measurement (p247.5 = 0) and deactivate fast flying restart (p1780.11 = 0).