Resetting The Protection Scheme - Siemens SINAMICS PERFECT HARMONY GH180 Operating Instructions Manual

Operation

9.2 Resetting the Protection Scheme

9.2 Resetting the Protection Scheme
Protection Scheme Reset Procedure
Reset Protection Scheme Caution
Failure to obey all safety precautions may cause death and equipment damage and drive
failure. Prior to resetting the protection scheme, read the section of this manual titled
Drive Faults and Alarms" , and then contact Siemens technical personnel.
Resetting the protection scheme
1. In the control section, reset the LFR using SW2 or keyed reset pushbutton. The LFR N.C.
contacts are immediately reclosed.
2. Initiate a "Drive Fault Reset". The control will not re-close M1_DOUT (NXGpro) if the fault
conditions still exist. Refer the NXGpro Control Manual (A5E33474566) provided with the
drive.
Note
Given the amperage rating of the components used in the coordinated input protection
scheme, an additional customer pilot relay may be required.
72
DANGER
DANGER
MV IP Breaker Enable
This contact must be integrated with input switchgear to deactivate the drive input medium
voltage upon the rare event of a secondary circuit fault. Failure to do so may result in
death, and equipment damage.
● Contacts close = Permissive to close breaker
● Contacts open = Trip breaker
Operating Instructions, 07/2018, A5E42736645A_AB
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Air Cooled 6SR5