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  1. #1
    Join Date
    Dec 2006
    Posts
    85

    Wiring earth/ground

    Hi, I would find some answers for a few ground wiring dudes. (I made a diagram for us)

    B1: Metal Geckodrive case must be isolated from "electronic metal case" wich is connected to ground (earth) by A3? (see diagram)

    C2: The shield cable must be connected to negative pole from steppers 60V power supply ?

    D1: 1) My stepper motor has a screw with simbol like "earth ground", where is suposed to wire it?? to A2 o B5???

    2) What happen if a discharge happen between the spindle case ( in contact with the iron mill structure) and stepper motor case?


    Regards!!
    (Sorry for my inglish!!)

    Tiwanacote

  2. #2
    Join Date
    Dec 2006
    Posts
    85
    I will try upload the diagram later, because I can´t now

  3. #3
    tiwanacote,

    It's not complicated. Screw the G540 down to your control cabinet. Connect your power supply to the G540. Take one wire from your power supply GND and connect it to your control cabinet chassis. Take all of your cable shields to your power supply GND. Take a wire from your motor case back to power supply GND. That's it. It's that easy.

    Mariss

  4. #4
    Join Date
    Dec 2006
    Posts
    85
    Quote Originally Posted by Mariss Freimanis View Post
    tiwanacote,

    It's not complicated. Screw the G540 down to your control cabinet. Connect your power supply to the G540. Take one wire from your power supply GND and connect it to your control cabinet chassis. Take all of your cable shields to your power supply GND. Take a wire from your motor case back to power supply GND. That's it. It's that easy.

    Mariss

    Mariss, thank you for your atention!
    Finaly I make this diagram, please could you take a look? It is OK??
    http://www.cnczone.com/forums/showth...=27363&page=55
    (Pay atenttion to B1 in contact with A3 (metal case) wich is wired to earth not to stepper motor power supply ground)

    Regards
    Tiwanacote

  5. #5
    I looked at your wiring diagram. Why are you using a breakout board?

    Mariss

  6. #6
    Join Date
    Dec 2003
    Posts
    24216
    On a side note, if the AC supply has a grounded neutral you normally should not fuse the neutral side, i.e. only one fuse in the 'Hot', not in both.
    Al.
    CNC, Mechatronics Integration and Custom Machine Design

    “Logic will get you from A to B. Imagination will take you everywhere.”
    Albert E.

  7. #7
    Join Date
    Dec 2006
    Posts
    85
    Quote Originally Posted by Mariss Freimanis View Post
    I looked at your wiring diagram. Why are you using a breakout board?

    Mariss
    Mariss, I´m using this electronic board from CNC4PC, http://www.cnc4pc.com/Store/osc/prod...roducts_id=161
    It´s called "multifunction board" instead of "breakout board", I was wrong...

    (I m not using G540, I m using G203V)
    Regards

    Tiwanacote

  8. #8
    Quote Originally Posted by Mariss Freimanis View Post
    tiwanacote,

    It's not complicated. Screw the G540 down to your control cabinet. Connect your power supply to the G540. Take one wire from your power supply GND and connect it to your control cabinet chassis. Take all of your cable shields to your power supply GND. Take a wire from your motor case back to power supply GND. That's it. It's that easy.

    Mariss
    When you say "power supply GND" are you refering to VDC-?

  9. #9
    Yes indeed.

    Mariss

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