Fault Buffer - Siemens SINAMICS Series Operating Instructions Manual

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Buffer for faults and alarms

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

is powered down, i.e. the fault buffer history is still available when the unit is powered up

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.

Fault buffer

Faults which occur are entered in the fault buffer as follows:

Figure 10-99 Structure of the fault buffer

SINAMICS DCM DC Converter

Operating Instructions, 12/2018, A5E34763375A

Descriptions of functions

10.34 Diagnostics