Siemens SINAMICS DCM Operating Instructions Manual page 493

● If the cause of at least one fault in "Current fault incident" is remedied and acknowledged,
● If "Current fault incident" contains 8 faults and a new fault occurs, the fault in the
● r0944 is incremented each time the fault buffer changes.
● A fault value (r0949) can be output for a fault. The fault value is used to diagnose the fault
Clearing the fault buffer
● The fault buffer is reset as follows: p0952 = 0
Alarm buffer, alarm history
The alarm buffer comprises the alarm code, the alarm value, and the alarm time (received,
resolved). The alarm history occupies the last indices ([8...63]) of the parameter.
Figure 10-70 Structure of alarm buffer
SINAMICS DCM DC Converter
Operating Instructions, 1.2012, C98130-A7066-A1-05-7619
the fault buffer is reorganized. Faults that have not been remedied remain in "Current
fault incident".
parameters in index 7 is overwritten by the new fault.
more accurately; please refer to the fault description for details of the meaning.
Descriptions of functions
10.30 Diagnostics
491