Operation
7.16 Diagnostics
SINAMICS DCP
Operating Instructions, 09/2019, A5E34382853K
369
Properties of the alarm buffer/alarm history:
● The alarms in the alarm buffer are arranged from 7 to 0 according to the time that they
occurred. In the alarm history, this is from 8 to 63.
● If eight alarms have been entered in the alarm buffer, and a new alarm is received, the
alarms that have been resolved are transferred to the alarm history.
● r2121 is incremented each time the alarm buffer changes.
● An alarm value (r2124) can be output for an alarm. The alarm value is used to diagnose
the alarm more accurately; please refer to the alarm description for details of the
meaning.
Clearing the alarm buffer, index [0...7]:
● The alarm buffer index [0...7] is reset as follows: p2111 = 0.
7.16.3.3 Configuring messages
The properties of the faults and alarms in the SINAMICS DCP are permanently defined.
The following configuration settings can be made for some of the messages within a
permanently defined framework for the SINAMICS DCP:
Change message type (example)
Change fault reaction (example)
Change acknowledgment (example)