Alarms, Alarm Buffer, And Alarm History - Siemens SINAMICS G110M Operating Instructions Manual

9.5

Alarms, alarm buffer, and alarm history

Overview
An alarm generally indicates that the converter may no longer be able to maintain the operation
of the motor in future.
The extended diagnostics have an alarm buffer and an alarm history, in which the converter
stores the most recent alarms.
Function description
Alarms have the following properties:
• Incoming alarms have no direct influence on the converter.
• A warning disappears as soon as its cause is eliminated.
• Alarms do not have to be acknowledged.
Alarm code or alarm value describe the cause of the alarm.
Alarm buffer
Figure 9-2
The converter saves incoming alarms in the alarm buffer. An alarm includes an alarm code, an
alarm value, and two alarm times:
• Alarm code: r2122
• Alarm value: r2124 in fixed-point format "I32", r2134 in floating-point format "Float"
• Alarm time received = r2145 + r2123
• Alarm time removed = r2146 + r2125
The converter takes its internal time calculation to save the alarm times.
Up to 8 alarms can be saved in the alarm buffer.
In the alarm buffer, the alarms are sorted according to "Alarm time received". If the alarm buffer
is completely filled and an additional alarm occurs, then the converter overwrites the values with
Index [7].
Distributed converter for SIMOGEAR geared motors
Operating Instructions, 10/2020, FW V4.7 SP13, A5E31298649B AL
Alarm buffer
System runtime (Page 349)
Alarms, faults and system messages
9.5 Alarms, alarm buffer, and alarm history
351