Re: Question for Mariss

More uninitiated peoples questions.

for a uni-polar dirve, you would use a higher
voltage power supply and a current liminting
resistor.

does the bi-polar steppers have the same needs?

anybody have a link to a site that details
the how and why this is ?

I am still looking for a link that goes that next
step and explains how to run steppers at higher
currents and not just the baiscs of how the steppers
actually work. (of course I might just be missing
or glossing over that data in the links like the one
posted a couple days ago)

Dave

--- In CAD_CAM_EDM_DRO@y..., "rsgoldner" <rgoldner@i...> wrote:
> The documentation for the G201 driver specifies that the power
> supply should have a voltage between 4 and 20 times the rated
> voltage of the motor. My motors are rated at 3 volts. Multiplied by
> 20 is 60 volts. It also states that a maximum of 67% of the rated
> current will be drawn. Three motors at 4 amps is 12 amps.
Multiplied
> by .67 we get 8.04 amps. I added a safety factor and came up with
10
> amps.
>
> --- In CAD_CAM_EDM_DRO@y..., "a_w_abate" <a_w_abate@y...> wrote:
>
> > Being new at this, can I ask why and how you arrived at the 20,
> 12A
> > and .67 figures for your formula? I have often wondered about but
> > have been afraid to ask!