Siemens SINAMICS G120 Operating Instructions Manual page 356

Alarms, faults and system messages
9.4 Faults
The fault buffer can accept up to eight actual faults. The next to last fault is overwritten if an
additional fault occurs after the eighth fault.
Figure 9-7
Acknowledgement
You have multiple options to acknowledge a fault, e.g.:
● PROFIdrive control word 1, bit 7 (r2090.7)
● Acknowledge via the operator panel
● Switch-off the inverter power supply and switch-on again.
Faults detected during the inverter-internal monitoring of hardware and firmware can be
acknowledged only by switching the supply voltage off and on again. The list of faults in the
List Manual contains a note on this limited acknowledgment possibility.
Emptying the fault buffer: Fault history
The fault history can contain up to 56 faults.
356
Complete fault buffer
Converter with CU230P-2 Control Units
Operating Instructions, 04/2015, FW V4.7 SP3, A5E34257946B AB