Siemens SINAMICS G120 List Manual page 1141
Cu250s-2 control units
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Also See for SINAMICS G120:
- List manual (924 pages) ,
- Manual (732 pages) ,
- Operating instructions manual (550 pages)
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Alarm value (r2124, interpret decimal):
Only for internal Siemens troubleshooting.
Remedy:
- possibly use an additional fan.
- check whether the ambient temperature is in the permissible range.
Notice:
This fault can only be acknowledged once the permissible temperature limit minus 5 K has been fallen below.
A30031
Power unit: Hardware current limiting in phase U
Message class:
Power electronics faulted (5)
Reaction:
NONE
Acknowledge:
NONE
Cause:
Hardware current limit for phase U responded. The pulsing in this phase is inhibited for one pulse period.
- closed-loop control is incorrectly parameterized.
- fault in the motor or in the power cables.
- the power cables exceed the maximum permissible length.
- motor load too high
- power unit defective.
Note:
Alarm A30031 is always output if, for a Power Module, the hardware current limiting of phase U, V or W responds.
Remedy:
- check the motor data and if required, recalculate the control parameters (p0340 = 3). As an alternative, run a motor
data identification (p1910 = 1, p1960 = 1).
- check the motor circuit configuration (star/delta).
- check the motor load.
- check the power cable connections.
- check the power cables for short-circuit or ground fault.
- check the length of the power cables.
A30032
Power unit: Hardware current limiting in phase V
Message class:
Power electronics faulted (5)
Reaction:
NONE
Acknowledge:
NONE
Cause:
Hardware current limit for phase V responded. The pulsing in this phase is inhibited for one pulse period.
- closed-loop control is incorrectly parameterized.
- fault in the motor or in the power cables.
- the power cables exceed the maximum permissible length.
- motor load too high
- power unit defective.
Note:
Alarm A30031 is always output if, for a Power Module, the hardware current limiting of phase U, V or W responds.
Remedy:
Check the motor data and if required, recalculate the control parameters (p0340 = 3). As an alternative, run a motor
data identification (p1910 = 1, p1960 = 1).
- check the motor circuit configuration (star/delta).
- check the motor load.
- check the power cable connections.
- check the power cables for short-circuit or ground fault.
- check the length of the power cables.
A30033
Power unit: Hardware current limiting in phase W
Message class:
Power electronics faulted (5)
Reaction:
NONE
Acknowledge:
NONE
Cause:
Hardware current limit for phase W responded. The pulsing in this phase is inhibited for one pulse period.
- closed-loop control is incorrectly parameterized.
- fault in the motor or in the power cables.
- the power cables exceed the maximum permissible length.
SINAMICS G120 CU250S-2 Control Units
List Manual, 09/2017, A5E33842890
4 Faults and alarms
4.2 List of faults and alarms
1141
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