On 12/26/2015 08:19 PM, Bertho Stultiens wrote: >> Not sure how I might isolate the VFD from the chassis at this moment. >> Well I could machine some delrin standoffs... I have a machine shop. > > No problem. If you ensure that the chassis connection is firm and > electrically sound, then you just ommit the earth wire (my comment in > the drawing).
One more comment. If you are unsure that the internal earth/chassis connection in the VFD controller holds, then you usually see a connection as seen in the attached image. A short thick wire is run from the earth screw connection to one of the chassis mounting bolts. -- Greetings Bertho (disclaimers are disclaimed)
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