Siemens CU240B-2 Parameter Manual page 655

Differences between faults and alarms
The differences between faults and alarms are as follows:
Table 3-1
Type
Faults
Alarms
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SINAMICS G120 / Control Units CU240B/E-2 Parameter Manual (LH11), 01/2011
Differences between faults and alarms
What happens when a fault occurs?
 The appropriate fault reaction is triggered.
 Status bit ZSW1.3 is set.
 The fault is entered in the fault buffer.
How are faults eliminated?
 Remove the original cause of the fault.
 Acknowledge the fault.
What happens when an alarm occurs?
 Status bit ZSW1.7 is set.
 The alarm is entered in the alarm buffer.
How are alarms eliminated?
 Alarms acknowledge themselves. If the cause of the alarm is no
longer present, then they automatically reset themselves.
Faults and Alarms
Faults and Alarms – Overview
Description
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