Descriptions of functions
10.34 Diagnostics
SINAMICS DCM DC Converter
Operating Instructions, 12/2018, A5E34763375A
651
Buffer for faults and alarms
Note
A fault buffer and alarm buffer are provided for each drive.
The drive and device-specific
messages are entered in these buffers.
The contents of the fault buffer are saved to the non
-volatile memory when the Control Unit
the fault buffer history is still available when the unit is powered up
gain.
Note
The entry in the fault/alarm buffer is made after a delay. For this reason, the fault/alarm
buffer should not be read until a change in the buffer is also recognized (r0944, r2121) after
"
Fault active"/"Alarm active" is output.
Faults which occur are entered in the fault buffer as follows:
Figure 10-99 Structure of the fault buffer
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