Re: [CAD_CAM_EDM_DRO] Stepper Calculation Help?

In a message dated 02-Aug-01 08:34:46 Central Daylight Time,
cnc@... writes:

> Is (rated winding voltage) the voltage of the stepper motor ie 5.1V?
> IS (+V motor) the input voltage from the power supply?
> Is (rated winding current) the stepper motor current ie 1.3A?
>
> Or do the winding voltage, current, etc have different values?
>
> I know this sounds realy dumb but I think it could be the wording on
> the diagram has confused me a little..... LOL
>
>

YES on all-three questions! They are NOT "dumb" questions, as you have it
right, the wording is VERY clumsy, as if translated word-for-word from some
less-common Medditeranean language!

Your confusion is understandable!

I leave a link, via which you should be able to get ALL the information about
this particular motor (AND many others), as this seems to be a Superior
Electric PN.

that "R" you would be calculating is generally a very LARGE resistor (in
physical size, i.e. "wattage dissipation rating"). I have built devices
using some Size-34 motors (MO-92, for example) with 100 W. "R" !!! Hot,
energy-wasteful, expensive, and... part of the reason that, once I first
tried the newer bipolar-chopper configurations and KML-nnn motors, I was DONE
with "unipolar" (tapped winding) steppers for good!

Lotsa luck! Jan Rowland, Troll


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