4 Faults and alarms
4.2 List of faults and alarms
SINAMICS G120D
918
List Manual (LH14), 01/2016, A5E33842313
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.
A30054 (F, N)
Power unit: Undervoltage when opening the brake
Message class:
Supply voltage fault (undervoltage) (3)
Reaction:
NONE
Acknowledge:
NONE
Cause:
When the brake is being opened, it is detected that the power supply voltage is less than 21.4 V
Alarm value (r2124, interpret decimal):
Supply voltage fault [0.1 V].
Example:
Alarm value = 195 --> voltage = 19.5 V
Remedy:
Check the 24 V voltage for stability and value.
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.
A30065 (F, N)
Voltage measured values not plausible
Message class:
Power electronics faulted (5)
Reaction:
NONE
Acknowledge:
NONE
Cause:
The voltage measurement is not supplying any plausible values
Alarm value (r2124, interpret bitwise binary):
Bit 1: Phase U.
Bit 2: Phase V.
Bit 3: Phase W.
Remedy:
- De-activate voltage measurement (p0247.0 = 0).
- De-activate flying restart with voltage measurement (p0247.5 = 0) and de-activate fast flying restart (p1780.11 = 0).
