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Servo motor

Discussion in 'Sensors and Actuators' started by jeffie3, Dec 21, 2015.

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  1. jeffie3


    May 21, 2015
    I picked up a Bridgeport CNC knee mill. The past owner says it ran, but never hooked it up. I want to test the servo motors in place. 72 volt 1250 watts. Can someone point me to a simple circuit that I can buy-build to test these motors, forward and reverse?


  2. Minder


    Apr 24, 2015
    If you just want to exercise the motors there are PWM controllers on ebay for ~$5.00, you would need to swap the output over for reverse, however.
    Or you can make your own 555 version.
    You do not need the full 72 volts.
    You can also just hook them up to a 12vdc Automotive battery to see them run.
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