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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 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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    F22raptom, Jul 6, 2018
    #1
  2. mprofitt

    mprofitt Member

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    Only if your frame was connected to another ground sink.
    mprofitt, Jul 11, 2018
    #2
  3. F22raptom

    F22raptom Member

    Joined:
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    My Motion Simulator:
    Arduino, 6DOF
    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?
    F22raptom, Jul 11, 2018
    #3