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Where is the DC choke wired on Altivar 61 and 71 drives?

Published date: 05 June 2018

Issue:
Customer installed an ATV drive and connected the DC choke to PA to PB terminals, now the drive shows No Line Power, NLP.

Product line:
Altivar 61  & 71

Environment:
any

Cause:
Not correctly installed.

Resolution:
DC chokes are connected to the positive bus terminals, between PO-PA.  From the factory there may be a jumper wire and this would need to be removed to add a DC choke.

PA to PB connection is used for Brake Resistors only.  

 

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