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IndustryArena Forum > CNC Electronics > Stepper Motors / Drives > my stepper motor make sound when stop
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  1. #1
    Join Date
    Dec 2015
    Posts
    7

    my stepper motor make sound when stop

    i make a new cnc and connect the motor to the driver and the board and testing the right and left derctions all is ok but when i stop the motor make sound like a whistle
    i dont know why is that ........if any one have the solution pleas tell me to connect the tow other motors

  2. #2
    Join Date
    Jun 2014
    Posts
    777

    Re: my stepper motor make sound when stop

    They do make noise stopped as they are in electro magnetic hold. Usually not that noisy tho. What motor, driver and current setting are you running?

  3. #3
    Join Date
    Dec 2015
    Posts
    7

    Re: my stepper motor make sound when stop

    my motor 3 a and driver set up to 3 a

  4. #4
    Join Date
    Jun 2014
    Posts
    777
    Quote Originally Posted by emad_models View Post
    my motor 3 a and driver set up to 3 a
    What driver is it though?

  5. #5
    Join Date
    Apr 2004
    Posts
    733

    my stepper motor make sound when stop

    It really depends on the driver. Most use some sort of PWM or chopper type circuit to limit current. Depending on the frequency, it can be very audible. Also some people have better hearing at those frequencies than others. Having watched hundreds of live bands over the years, my hearing is not nearly as good anymore. I don't notice my gecko steppers to much.

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