Alarms, Faults And System Messages; Alarms - Siemens SINAMICS G120D Operating Instructions Manual

Alarms, faults and system messages

11.1

Alarms

Alarms have the following properties:
● They do not have a direct effect in the converter 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
For each incoming alarm, the converter saves the alarm, alarm value and the time that the
alarm was received.
Figure 11-1
r2124 and r2134 contain the alarm value - important for diagnostics - as "fixed point" or
"floating point" number.
The alarm times are displayed in r2145 and r2146 (in complete days) as well as in r2123 and
r2125 (in milliseconds referred to the day of the alarm).
The converter uses an internal time calculation to save the alarm times. More information on
the internal time calculation can be found in Chapter System runtime (Page 244).
As soon as the alarm has been removed, the converter writes the associated instant in time
into parameters r2125 and r2146. The alarm remains in the alarm buffer even if the alarm
has been removed.
Converter with control units CU240D-2
Operating Instructions, 04/2014, FW V4.7, A5E34262100B AA
removed
– Status display via bit 7 in status word 1 (r0052)
– At the Operator Panel with a Axxxxx
– Via STARTER, if you click on TAB
Saving the first alarm in the alarm buffer
at the bottom left of the STARTER screen
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