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System messages
12.3 Faults and alarms
12.3
Faults and alarms
12.3.1
Overview of faults and alarms
Description
Definitions
A message includes a letter and a relevant number.
The letters have the following meaning:
• A means "Alarm"
• F means "Fault"
• N means "No message" or "Internal message"
• C means "Safety message"
In the delivery state (p3117 = 0), safety messages correspond to message type "C" and the
safety message buffer is active. With p3117 = 1, safety messages correspond to the message
types "A" or "F" and are stored in the fault buffer or the alarm buffer.
Differences between faults and alarms
An alarm reports an operating state which is non-critical at present. A fault means that it is
normally no longer possible to run the motor. The converter therefore responds to alarms
and faults differently.
Table 12-4
Type
Faults
Alarms
428
Differences between faults and alarms
Description
How does a converter respond when a fault occurs?
•
Initiate the appropriate fault reaction.
•
Set the status signal ZSW1.3.
•
Enter the fault into the fault buffer.
How are faults eliminated?
•
Remove the cause of the fault.
•
Acknowledge the fault.
What happens when the converter is switched off and switched on?
•
Faults are saved retentively.
How does a converter respond when an alarm occurs?
•
Set the status signal ZSW1.7.
•
Enter the alarm into the alarm buffer.
How are alarms eliminated?
•
Alarms are self-acknowledging.
If the cause of the alarm is no longer present, the converter resets the alarm.
What happens when the converter is switched off and switched on?
•
The alarm buffer is lost when the supply voltage is switched off.
SINAMICS S200 PROFINET servo drive system with SIMOTICS S-1FL2
Operating Instructions, 11/2023, FW V6.3, A5E51646752B AB
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