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  1. #1
    Join Date
    May 2018
    Posts
    30

    mach3 interface

    Hi, I hope you can help me. I'm trying to install the limit switches in a mach3 interface in the cnc, but I can't find the solution, the green cable can't find it.
    Attached Thumbnails Attached Thumbnails final carrera.jpg  

  2. #2
    Join Date
    Jan 2018
    Posts
    1516

    Re: mach3 interface

    Quote Originally Posted by tazma View Post
    Hi, I hope you can help me. I'm trying to install the limit switches in a mach3 interface in the cnc, but I can't find the solution, the green cable can't find it.
    Hi there.
    For a start. Those boards need a 12-24 power supply attached to the middle 2 pins that say 12v-24v/gnd on the right hand side for the inputs to work. If you don't have that then the inputs have no power.
    https://warp9td.com/images/BOB_Vendo...line/ST-V2.pdf

    I have no idea about the green wire but my NPN 3 pin/wire inductive switches have brn/blue/blk. Those wire in as: brn= v+, blue= gnd, blk= xyz trigger.
    I assume either the blk or grn on yours are v/gnd or signal. (this is all assuming the red is v+).
    You need to figure out which is the gnd wire (either grn/blk will be) then the other will be the trigger.

    This is a basic image of 24v inductive switch wiring both npn or pnp:


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