Re: [CAD_CAM_EDM_DRO] phases on steppers

smeboss wrote:

>Hello, Could anyone explain the differences between the 2-phase, 5-
>phase stepper motor and one that lists no phases?
>
>

All stepper motors have phases. 2 phase is vastly the most common.
There are some 3-phase stepper motors, and Berger-Lahr invented the
5-phase design. Oriental motor (under their Vexta trade name) has
made a LOT of 5-phase motors. These have amazing performance,
and can be run at 5000 RPM while still maintaining usable torque.
There are some motors described as 4-phase, but this is really just a
2-phase motor with a unipolar driver.

I think Mariss Freimanis posted a desciption of the phase sequence
of a 2-phase stepper drive last week.

Jon