Siemens SINAMICS G120 Manual page 708

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Faults and Alarms
List of Faults and Alarms
A30042
Power unit: Fan operating time reached or exceeded
Reaction:
NONE
Acknowledge:
NONE
Cause:
The maximum operating time of the fan in the power unit is set in p0252.
This message indicates the following:
Fault value (r0949, decimal interpretation):
0: The maximum fan operating time is 500 hours.
1: The maximum fan operating time has been exceeded.
Remedy:
Replace the fan in the power unit and reset the operating hours counter to 0 (p0251 = 0).
A30049
Power unit: Internal fan faulty
Reaction:
NONE
Acknowledge:
NONE
Cause:
The internal fan has failed.
Remedy:
Check the internal fan and replace if necessary.
F30052
EEPROM data error
Reaction:
NONE
Acknowledge:
POWER ON
Cause:
EEPROM data error of the power unit module.
Fault value (r0949, interpret hexadecimal):
0: The EEPROM data read in from the power unit module is inconsistent.
1: The EEPROM data is not compatible with the CU firmware.
Remedy:
For fault value = 0:
Replace power unit module.
For fault value = 1:
Replace power unit module.
F30055
Power unit: Braking chopper overcurrent
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.
F30059
Power unit: Internal fan faulty
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.
F30071
No new actual values received from the Power Module
Reaction:
OFF2
Acknowledge:
IMMEDIATELY
Cause:
More than one actual value telegram from the power unit module has failed.
Remedy:
Check the interface (adjustment and locking) to the power unit module.
F30072
Setpoints can no longer be transferred to the Power Module
Reaction:
OFF2
Acknowledge:
IMMEDIATELY
Cause:
More than one setpoint telegram was not able to be transferred to the power unit module.
Remedy:
Check the interface (adjustment and locking) to the power unit module.
3-708
SINAMICS G120 Control Units CU230P-2 Parameter Manual (LH9), 01/2011
© Siemens AG 2011 All Rights Reserved

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