Re: [CAD_CAM_EDM_DRO] what effect does higher nameplate voltage on stepper have.

cnc4me@... wrote:

> I was looking at some of the steppers i have and noticed some of them
> go from 1.45 volts to 6 volts or so. It seems the current on these
> higher voltage steppers is usally lower than i would expect for a
> motor that size.
>
> Does anyone know what type of performance these motors have in
> comparison to the lower voltage higher current motors....assuming
> running them both with a good bipolar chopper drive.

These motors will be restricted to lower speeds (all other things
being equal). The higher voltage motors generally have more turns
of thinner wire. They get the same number of amp-turns that way,
but the inductance goes up as the SQUARE of the number of turns!
So, roughly, a 2 x higher voltage means 4 x SLOWER!

Jon