Alarms, Alarm Buffer, And Alarm History - Siemens SINAMICS G120C USS/MB Operating Instructions Manual

Alarms, faults and system messages

8.3 Alarms, alarm buffer, and alarm history

8.3 Alarms, alarm buffer, and alarm history
Alarms
Alarms have the following properties:
● Incoming alarms have no direct influence on the inverter.
● Alarms disappear again when the cause is eliminated.
● Alarms do not have to be acknowledged.
● Alarms are displayed as follows:
– Display via bit 7 in status word 1 (r0052)
– Display on the operator panel with Axxxxx
– Display in Startdrive or STARTER
Alarm code or alarm value describe the cause of the alarm.
Alarm buffer
Figure 8-1
The inverter saves incoming alarms in the alarm buffer. An alarm includes an alarm code, an
alarm value, and two alarm times:
● Alarm code: r2122
● Alarm value: r2124 in fixed-point format "I32", r2134 in floating point format "Float"
● Alarm time received = r2123
● Alarm time removed = r2125
Up to 8 alarms can be saved in the alarm buffer.
In the alarm buffer, the warnings are sorted according to "Warning time received". If the alarm
buffer is completely filled and an additional alarm occurs, then the inverter overwrites the values
with Index [7].
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Alarm buffer
Operating Instructions, 09/2017, FW V4.7 SP9, A5E34263257B AF
SINAMICS G120C converter