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  1. #1

    Question Controller Wiring Type

    I assume all internal controller wiring should be stranded to handle any potential vibration?

    I'm thinking for simplicity I'd use all 18 AWG for everything except the mains and router etc.

    Are twisted pairs and/or shielding needed for wiring between the step controller and stepper drives over relative short distances?

  2. #2
    Community Moderator ger21's Avatar
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    Re: Controller Wiring Type

    You'd normally use MTW wire for the control box.

    18 awg is much larger than needed for low voltage and step/dir wires.

    Are twisted pairs and/or shielding needed for wiring between the step controller and stepper drives over relative short distances?
    Only if you are using differential signals.
    Gerry

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  3. #3

    Re: Controller Wiring Type

    Quote Originally Posted by ger21 View Post
    18 awg is much larger than needed for low voltage and step/dir wires..
    I know. My thought was to use a jacketed 4, 5, or 6 conductor wire and use the same wire for the stepper motors that are stationary. It seemed that any twisted or shielded wire was cheapest by the foot at 18 AWG. I assume its a volume manufacturing thing.

    I'll investigate the MTW, honestly never though of that. Trying to keep cost to a minimum.

  4. #4
    Community Moderator ger21's Avatar
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    Re: Controller Wiring Type

    You can probably use 20 or 22 gauge for everything.

    500' of 20 gauge MTW wire is only about 20 bucks.
    Gerry

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  5. #5
    Super Moderator Al_The_Man's Avatar
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    Re: Controller Wiring Type

    For control enclosure wiring it is definitely customary to use stranded conductors, there is TEW/MTW etc, but if packing a lot of conductors in a raceway, I use TR64 control wire, the insulation is not so heavy as the other two, but still retains the voltage insulation value.
    Al.
    CNC, Mechatronics Integration and Custom Machine Design

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