Siemens SINAMICS G220 - Page 752

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Figure15-6 Current incident
Acknowledging faults
Once the cause of the fault has been eliminated, the converter writes the time to "Fault time
resolved". The "Fault time resolved" of the faults that have not been resolved remains at 0. To
acknowledge a fault, the converter o󹪜ers the following options:
• Acknowledge via PROFIdrive control signal (STW1 bit7): r2090.7=0/1 edge
• Acknowledge via binary signal sink:
r2103 (signal 1 for acknowledging faults)
r2104 (signal 2 for acknowledging faults)
r2103 and r2104 are equivalent interconnection options for acknowledging faults.
• Acknowledgement via a digital input
• Acknowledgement via an operating unit or via the commissioning tool
• Acknowledging by switching o󹪜/switching on the converter power supply
The faults active before switch-o󹪜 are automatically moved to the history when the converter
runs up.
Faults detected during converter-internal monitoring of hardware and 󹪝rmware can be
acknowledged only by switching the supply voltage o󹪜 and on again.
Resolved and acknowledged faults are cleared from the active incident. Unresolved faults
remain stored in the active incident.
If more than 8 faults are active, then these faults are added to the active incident.
Fault history
Up to 7 incidents, each with 8 already acknowledged faults, are stored in the fault history.
The converter moves the acknowledged faults from the current incident to the fault history
as follows:
1. The converter shifts the values previously saved in the fault history by 8 indices.
The converter deletes the faults that were saved in the indexes [56…63] before
acknowledgement.
2. The converter copies the actual incident together with the acknowledged faults to the fault
history. The fault history can include acknowledged faults that have still not been resolved
(fault time resolved=0). These faults remain as active faults until they are resolved.
System messages
15.8Fault bu󹪜er
SINAMICS G220 converter
750 Operating Instructions, 04/2024, FW V6.2, A5E51781573B AB