Siemens sinamics G120 Operating Instructions Manual page 413

Low voltage inverters chassis devices with cu250s-2 control units and encoder evaluation

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After acknowledgement, the faults that have not been removed are located in the fault buffer

as well as in the fault history. For these faults, the "fault time coming" remains unchanged

and the "fault time removed" remains empty.

If less than eight faults were shifted or copied into the fault history, the memory locations with

the higher indexes remain empty.

The inverter shifts the values previously saved in the fault history by eight indexes. Faults,

which were saved in indexes 56 ... 63 before the acknowledgement, are deleted.

Deleting the fault history

If you wish to delete all faults from the fault history, set parameter p0952 to zero.

Converter with CU250S-2 Control Unit

Operating Instructions, 01/2016, FW V4.7 SP6, A5E31759476B AE

Fault history after acknowledging the faults

Alarms, faults and system messages