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Nema 23HS30 suddenly going in random rotations

Discussion in 'General Electronics' started by ward0n, Aug 22, 2020.

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  1. ward0n

    ward0n New
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    I am using the Blackbox on a diy build and my Y axis is run by dual Nema 23 motors with the Y2 in reversed direction. When jogging the y axis, 1 motor will randomly spin in whichever direction it wants, causing the y axis to bind. I have removed the motor and ran it plugged into the x and y Blackbox plugs all by itself and it does the same. What could be going on here?
     
  2. Gary Caruso

    Gary Caruso OpenBuilds Volunteer
    Staff Member Moderator Builder

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    One of the four wires has a bad connection.
    Check every connection, could be a broken wire or bad solder joint, or loose connector.
    Gary
     
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  3. ward0n

    ward0n New
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    Thank you! Good call. Pulled all the wiring out of my drag chain and found a crease in the red and black wire. Did a quick splice to check rotation and that did it. Going to run a new wire tomorrow.
     

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