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Question Does my metal base frame cause a ground loop? AC motors

Discussion in 'DIY Motion Simulator Building Q&A / FAQ' started by F22raptom, Jul 6, 2018.

  1. F22raptom

    F22raptom New Member

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    My Motion Simulator:
    Arduino, 6DOF
    If all my single phase VFD are wired to their 3 phase motor - and each motor is grounded to the metal base frame it sits on, does it make any sort of ground loop because they are all grounded to the same object?

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  2. mprofitt

    mprofitt New Member

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    Only if your frame was connected to another ground sink.
  3. F22raptom

    F22raptom New Member

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    My Motion Simulator:
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    Cool, thanks. Does each VFD need its own EMI filter, do you know? One for each VFD located immediately before the drive or can they all share one that feeds to a distribution point?