90v dc motor controler

Discussion in 'The Projects Forum' started by anectine, Dec 28, 2012.

  1. anectine

    Thread Starter New Member

    Dec 28, 2012
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    0
    I am new here and have a very limited (but growing) knowledge of electronic design. I Have aquired a 90v dc treadmill motor I want to use on a lathe. The mcb that came on the treadmill looks to be all solid state and I am not sure how to use it to control the motor.

    I am looking for some advice on either using this board or how to build a suitable alternative.

    The motor is 90v dc, 2.5 hp, 21 amp, and a 3100 rpm rating
    Here is a link to the service manual if that helps

    http://www.resembly.net/files/Johns...ice Manuals/2006Treadmillserviceguide 1.5.pdf

    on page 22 of the document is the drive wiring diagram
    Any help is appreciated
     
  2. R!f@@

    AAC Fanatic!

    Apr 2, 2009
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    759
    If the board is OK, maybe u can try to use it.
    May be it's easier than building a PWM driver.

    The board will handle torque far better than a DIY circuit I believe.
     
  3. anectine

    Thread Starter New Member

    Dec 28, 2012
    2
    0
    The treadmill was a $25 cl find that works great. the running board under the belt was broken and not safe anymore. I was considering placing a pot across the EL VCC +2.5v, EL Pot, and Ground lines to see it that would power the motor.

    Any suggestions?
     
  4. R!f@@

    AAC Fanatic!

    Apr 2, 2009
    8,733
    759
    to make tht kinda suggestion I need to see the PCB close range. Since without a schema it's hard to say.

    I bet the control signal is digital rather than analog.
    But still it can be done if the motor driver PCB is not toast.
     
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