Alarms - Siemens SINAMICS G120 Operating Instructions Manual

12.2

Alarms

Alarms have the following properties:
● They do not have a direct effect in the inverter and disappear once the cause has been
● They do not need have to be acknowledged
● They are signaled as follows
In order to pinpoint the cause of an alarm, there is a unique alarm code and also a value for
each alarm.
Alarm buffer
The inverter saves an alarm code and an alarm value for every alarm it receives.
Figure 12-1
r2124 and r2134 contain the alarm value - important for diagnostics - as "fixed point" or
"floating point" number.
The alarm remains in the alarm buffer even if the alarm has been removed.
If an additional alarm is received, then this is also saved. The first alarm is still saved. The
alarms that have occurred are counted in p2111.
Figure 12-2
SINAMICS G120C frequency converter
Operating Instructions, 03/2012, FW V4.5, A5E02999804B AB
removed
– Status display via bit 7 in status word 1 (r0052)
– at the Operator Panel with a Axxxxx
– via STARTER
Saving the first alarm in the alarm buffer
Saving the second alarm in the alarm buffer
Alarms, faults and system messages
12.2 Alarms
281