Siemens SINAMICS S120 Installation And Start-Up Manual page 218

Diagnosis
Messages – faults and alarms
Acknowledging faults
The list of faults and alarms specifies how each fault is acknowledged after the
cause has been remedied.
1. Acknowledgement of faults by "POWER ON"
– Switch the drive on/off (POWER ON)
– Press the RESET button on the Control Unit
2. Acknowledgement of faults by "IMMEDIATE"
– Via PROFIBUS control signal
STW1.7 (reset fault memory): 0/1edge
Set STW1.0 (ON/OFF1) = "0" and "1"
– Via external input signal
Binector input and interconnection with digital input
p2103[0...n] = "desired signal source"
p2104[0...n] = "desired signal source"
p2105[0...n] = "desired signal source"
Note
The drive cannot resume operation until all active faults have been acknowledged.
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E Siemens AG, 2004. All rights reserved
SINAMICS S120 Installation and Start-Up Manual, 12/04 Edition