Re: [CAD_CAM_EDM_DRO] Seaking information Compumotor M83-135 Stepper Motors

Well they dont have voltage requirements as such, it depends on the
resistance of the windings. Just set your drives current limiter to the
labeled current and you will be ok. Make sure the current marking on the
label is qualified by how the motor is connected unipolar, bipolar,
series, parallel, see the papers with your drives. Power supply voltage
must not exceed the drives max of course but be 4-5 times the voltage
dropped by the motor winding as a min. for best proformance, that E over
I times R thing. Power supply current would be: current per winding X 2
windings X 3 motors = 12A average. Put a big watt bleeder resistor
across the supply that draws about 5% of the out put current to
discharge it fast when its turned off (safety), improve regulation and
it prevents the voltage from going to peak value and maybe over
voltaging the drives when they are in standby.

Mark

shawnusa2002 wrote:

> I have 3 Compumotor M83-135 Stepper motors and can not seem to
> locate the voltage requirments for these steppers. Anyone have a
> clue? Here is what I do know about it.
>
> Torque 400oz
> Max driver input 1.8A
> Max current per phase 2A
>
> I will be controlling these motors with Compumotor C Series drivers.
> The Drivers can support 12 - 90v supply to the steppers. IF you have
> any information as to what size power supply I need would be great.
> I would really like to only have to build one power supply if
> possible. Again any help is highly appricated.
>
> Thanks,
>
> Shawn
>
>
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