Faults And Alarms - Siemens SINAMICS G120 List Manual

4 Faults and alarms

4.1 Overview of faults and alarms

4.1

Overview of faults and alarms
4.1.1 General
Fault and alarm displays (messages)
In the case of a fault, the drive signals the corresponding fault(s) and/or alarm(s).
For example, the following methods for displaying faults and alarms are available:
• Display via the fault and alarm buffer with PROFIBUS/PROFINET
• Display online via the commissioning software
• Display and operating unit (e.g. BOP, AOP)
Differences between faults and alarms
The differences between faults and alarms are as follows:
Table 4-1
Faults
Alarms
992
Differences between faults and alarms
Type
What happens when a fault occurs?
• The appropriate fault response 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 signal ZSW1.7 is set.
• The alarm is entered into the alarm buffer.
How are alarms eliminated?
• Alarms acknowledge themselves. If the cause of the alarm is no longer
present, they automatically reset themselves.
Description
SINAMICS G120 CU250S-2 Control Units
List Manual, 09/2017, A5E33842890