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IndustryArena Forum > CNC Electronics > Spindles / VFD > Stop machine if spindle motor fails.

Thread: Stop machine if spindle motor fails.

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  1. 11-17-2014, 05:34 AM #1
    erkiwi
    erkiwi is offline Registered
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    Question Stop machine if spindle motor fails.

    I have built a cnc with axis driven by stepper motors,the spindle is driven by a DC motor.I want to know how to stop the machine running if the spindle motor stops,Do I need to put a speed sensor on the motor shaft,if so how do I wire it up.?Eric
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  2. 11-17-2014, 06:23 AM #2
    jalessi
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    Re: Stop machine if spindle motor fails.

    erkiwi,

    Assuming you are using Mach3,

    Hardware wise it would require a sensor to provide a index pulse and an available input port.

    A custom macro would then be required in order to monitor lack of spindle motion while there is g code program activity and initiate a eStop.

    Jeff...
    Patience and perseverance have a magical effect before which difficulties disappear and obstacles vanish.
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  3. 11-21-2014, 10:37 PM #3
    erkiwi
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    Re: Stop machine if spindle motor fails.

    Thanks for your help...Eric
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