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A couple of random questions

Discussion in 'DIY Motion Simulator Building Q&A / FAQ' started by Doon1, Jan 12, 2018.

  1. Doon1

    Doon1 Member

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    My e660 motors have an electro-magnetic clutch type brake on them. Should I utilize it? is there a way to hook it into the controller or should I just put it in series with the motor so it disengages with motor voltage?

    The gear ratio of the motors is just over 28:1. I plan to use the end of the motor shaft (where the brake mounts) to drive the position potentiometer. I would need at least a 14 turn pot but can't find any over 10 turns. Is there a higher turn pot somewhere?

    The welding teacher just cut out an actuator arm and motor holding fixture for me today so we are going to test the lifting capabilities of the motors tomorrow. The arm is 300mm long from the center of the shaft to the end with a hole every 50mm along it's length. The plan is to mount the motor to the bench and hook up some weight. I plan to determine the stall weight and amp draw at each hole. I couldn't find any specs on these motors; so was wondering if those of you that are experienced with platform motors can give me an idea of what I should be shooting for as a max draw on these 24v motors. Maybe a percentage of stall or something.

    I have 2 variable voltage (15.3 volt max per) 40 amp power supplies that I have hooked up in series using balancing diodes. I did run them while holding the spinning pulleys with my gloved hands. It didn't slow them down at all and I was able to get the amp draw up to about 12 amps total. I'm wondering if these motors can run at the 30.6 volts supplied by the power supplies or will that be to much for them to handle. I can dial it back to 24 volts but I only have 40 amps to play with. which brings me to the next question. Will 40 amps be enough to run the 2 motors?

    What are you guys using to absorb back EMF and back voltages? I would rather not use batteries. If I have to use batteries then the whole power supply solution will have to be re-thought.

    If you made it this far THANKS. I look forward to your enlightened answers.
    John
    Doon1, Jan 12, 2018
    #1