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  1. #1
    Hi JazzCNC,

    The photo is for reference only. My pump came with a bigger plastic connector. I will have a look on that site.
    Still maybe know where I can buy the right one. I bought the 3/4" barb and doesn't fit, it is a hair big...

    Thx
    Gabi

  2. #2
    Got some Noob questions. Thanks for any help.

    1. Can anyone confirm if its safe to power up the VFD without the spindle connected for setting the parameters at the beginning ?

    2. I have already purchased 3 core foil shielded Belden Cable for my spindle.
    http://www.ebay.co.uk/itm/111817521022
    Is this ok ?
    I just read i was supposed to use 4 core CY Cable.

    3. Do i have to earth the spindle at the spindle end by removing the top and making a ground point and connect to pin 4?
    E.g. Should I have 4 core cable as well as the shielding ?



    Cheers
    Martin

  3. #3
    Quote Originally Posted by mturneruk View Post
    Got some Noob questions. Thanks for any help.

    1. Can anyone confirm if its safe to power up the VFD without the spindle connected for setting the parameters at the beginning ?

    2. I have already purchased 3 core foil shielded Belden Cable for my spindle.
    http://www.ebay.co.uk/itm/111817521022
    Is this ok ?
    I just read i was supposed to use 4 core CY Cable.

    3. Do i have to earth the spindle at the spindle end by removing the top and making a ground point and connect to pin 4?
    E.g. Should I have 4 core cable as well as the shielding ?



    Cheers
    Martin
    1. I believe it is ok to run the vfd without being connected BUT do not connect or disconnect with it powered up.
    2. Yes it will be OK CY cable is generally used but you have already purchased it so use it.
    3. It is ok to earth the shield at the VFD end only, 4 core is not a necessity .
    ..Clive
    The more you know, The better you know, How little you know

  4. #4
    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.
    Old router build log here. New router build log here. Lathe build log here.
    Electric motorbike project here.

  5. #5
    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.
    ..Clive
    The more you know, The better you know, How little you know

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