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Thread: ATC Driver Motor Fault on Z-Axis/Input 5 Constantly On

  1. #1
    Join Date
    May 2012
    Location
    Murrieta, CA
    Posts
    12

    Default ATC Driver Motor Fault on Z-Axis/Input 5 Constantly On

    For the last week, with growing frequency, my ATC Alpha will quit during runs and give a driver motor fault on the Z-axis. I have rewired the motor, re wired the prox switch on the Z-axis and even reloaded the control software....at a loss now. Also, should input 5 be constantly lit-up on the software? Please help. Thanks.

  2. #2
    Join Date
    Jan 2004
    Location
    iBILD Solutions - Southern NJ
    Posts
    7,986

    Default

    No input 5 should not be on all the time. IIRC, it is the Z prox switch on ATC machines. Re-check the wiring for that & make sure nothing metal is hanging down in front of it when off the Z target - otherwise it will never sense the target, the Z can over-shoot the target and bump the hard stop - and cause a motor driver fault.

    -B
    High Definition 3D Laser Scanning Services - Advanced ShopBot CNC Training and Consultation - Vectric Custom Video Training IBILD.com

  3. #3
    Join Date
    Jan 2015
    Location
    Palm Coast, FL
    Posts
    193

    Default

    Quote Originally Posted by Art Sign Works View Post
    Also, should input 5 be constantly lit-up on the software?
    My input 5 light is always on. It only turns off when the z-axis proxy switch is hit. Input 2 and 3 lights are always off and only turn on when the x or y-axis proxy switches are hit.

    If you look under VN (values - input/output switch mode) you will see that switch 2 and 3 are nominally closed while switch 5 is a standard switch.
    PRS Alpha 96-60 ATC
    16.9hp Republic Regenerative Blower
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  4. #4
    Join Date
    Jan 2015
    Location
    Palm Coast, FL
    Posts
    193

    Default

    I'm not entirely clear from your description, but I think I went through a similar issue. ShopBot support was very helpful in tracing the issue, although it took a while to finally isolate the problem.

    We replaced, in order, the z-prox switch, the z-prox switch cable, the controller card and ribbon and then finally the main control board. Once the main control board was replaced the problem went away.

    The issue was intermittent which made it very difficult to trace.
    PRS Alpha 96-60 ATC
    16.9hp Republic Regenerative Blower
    Aspire 8.5
    eCabinets with ShopBot Link

    https://www.facebook.com/SyzygyWoodworks/

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