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Veelgestelde vragen (FAQ's) zoeken
How do contacts 95-96 and 97-98 operate on the LTMR product?
Issue:
Contacts 95-96 and 97-98 do not appear to be operating properly.

Product Line:
Tesys T LTMR motor controllers.

Environment:
All models, All serial numbers.

Cause:
Unexpected operation

Resolution:
Contacts 95-96 are labeled as Normally Closed but are open when de-energized.  Contacts 97-98 are labeled as Normally Open but are closed when de-energized.   When power is applied to the LTMR, the unit will perform a self test which usually completes in 7 to 10 seconds, but may take as much as 30.   After the Power On Self Test has completed, if no faults are found, the relay will be energized internally and contact 97-98 will open, 95-96 will close.   This is normal operation.

Schneider Electric Netherlands

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