I am using a 1/2HP motor controlled by a VFD to rotate an electronics package ~2 ft away as part of a testing fixture. The motor is fixed to an aluminum plate as is the fixture for rotating the electronics package. For *some* of my packages I am getting garbled output when the drive is engaged (but fine when it is off). When the package is moved to ~4 ft away there is no problem. I am suspecting EMI from the drive as the cause of the problem, but I would like to not have to re-build the base of my fixture and drive to create the increased separation. Is there any simple way to shield my electronics from the EMI to avoid the signal problems? I do not know the frequency of the EMI (if that is indeed the problem).
Thanks for any help.
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