Overview Of Warnings And Faults; External Alarm 1 - Siemens SINAMICS G150 Operating Instructions Manual

10.3

Overview of warnings and faults

If a fault occurs, the drive indicates the fault and/or alarm. Faults and alarms are listed in a
fault/alarm list, together with the following information:
● Fault/alarm number
● Standard drive response
● Description of the possible cause of the fault/alarm
● Description of the procedure for rectifying the problem
● Standard fault acknowledgement after it has been rectified
Note
The list of faults and alarms is included on the customer DVD!
It also contains descriptions of possible fault responses (OFF1, OFF2, ...).
Note
The faults and alarms described below have been wired specially for the cabinet units listed
in this document and preset via macro. In this way, the appropriate reaction is triggered by
the additional components in the cabinet unit when faults and alarms are signaled.
It is possible to reprogram the faults and alarms described, provided that the stated options
are not included in the scope of the equipment.
10.3.1

"External alarm 1"

Causes
Alarm A7850 ("External alarm 1") is triggered by the following optional protection devices in
the cabinet unit:
● Temperature sensor for triggering the alarm threshold in the Line Harmonics Filter
● Thermistor motor protection unit alarm (option L83)
● PT100 Evaluation Unit (Option L86)
Converter cabinet units
Operating Instructions, 03/2012, A5E03263466A
compact (option L01)
Diagnosis / faults and alarms
10.3 Overview of warnings and faults
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