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  1. 27-12-2015 #1
    Jonathan's Avatar
    Lives in Leicester (Home) or Nottingham University (2nd Home), United Kingdom.
    Jonathan
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    Quote Originally Posted by Clive S View Post
    3. It is ok to earth the shield at the VFD end only, 4 core is not a necessity .
    Just to clarify, this is true for the shield but you should ideally also earth the body of the spindle, not relying on earthing through the machine frame as the bearings are not predictable.
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  2. 27-12-2015 #2
    Clive S's Avatar
    Lives in Marple Stockport, United Kingdom.
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    Quote Originally Posted by Jonathan View Post
    Just to clarify, this is true for the shield but you should ideally also earth the body of the spindle, not relying on earthing through the machine frame as the bearings are not predictable.
    Yes I agree with that also it is a good idea to put some form of cable restraint on the spindle so as to stop the connections breaking in the plug and causing the VFD to fail.
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