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Will this Pololu work instead of JRK 12v12? this is a 24v12

Discussion in 'SimTools compatible interfaces' started by shannonb1, Mar 3, 2011.

  1. shannonb1

    shannonb1 Well-Known Member

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    My Motion Simulator:
    2DOF, AC motor, Arduino, JRK, 4DOF
    please help me understand
    1. Will this work?
    2. If it wont, why wont it?


    http://www.pololu.com/catalog/product/1378
    shannonb1, Mar 3, 2011
    #1
  2. bsft

    bsft

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    From what I have read, the 12v12 is has feedback, the 24v12 does not. You could incorporate a feedback system somewhere with the 24v12, But I am not sure how. Perhaps another member of this community can advise. Or failing that, trawl through the http://forum.pololu.com/ . There may be an answer there. I would like to know as well as the 24v12 is half the cost of a 12v12, and if a feedback circuit can be incorporated for a minimal cost, this would be of benefit to all of us scrounging for cash at the moment.
    Thanks, David.
    bsft, Mar 3, 2011
    #2
  3. shannonb1

    shannonb1 Well-Known Member

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    My Motion Simulator:
    2DOF, AC motor, Arduino, JRK, 4DOF
    It says a key feature is the following.

    4. 0–3.3 V analog voltage interface for direct connection to potentiometers and analog joysticks.
    shannonb1, Mar 3, 2011
    #3
  4. Frakk

    Frakk Active Member

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    bsft is right, these controllers don't have feedback, they are open loop. Only speed control, no positioning.

    You can connect pots to control how fast the motor is turning..
    Frakk, Mar 3, 2011
    #4
  5. eaorobbie

    eaorobbie Well-Known Member SimTools Developer Gold Contributor

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    My Motion Simulator:
    2DOF, DC motor, JRK, SimforceGT, 6DOF
    maybe connected through a k8055 they should work, k8055 handling the feed back and pwm signal to smc, might need some research, should work like the vnh2sp30. mmmmm
    eaorobbie, Mar 3, 2011
    #5