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Old January 19th, 2020, 06:02 AM   #4
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geofftheelectrician is offline
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Join Date: Jan 2016
Location: London, ON Canada
Posts: 30
Thanks for the reply..

Yes there are brake resistors installed and they should be sized properly for the drive.

The project is an upgrade on an old panel with old SLC controller corporate said had to be replaced (went with 1756-L73 processor). The VFDs in the old panel were no longer available so it was thought best to replace them as well. I am working with an engineering/integration company and we are scratching our heads but i see Ken Roach has also replied with a knowledge base article and some ideas I think we can look at in the morning.
Iíve learned electronic devices obviously run on smoke, once it leaks out you then have to replace it.
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