Re: [CAD_CAM_EDM_DRO] Bipolar stepper wiring

In a message dated 11/27/2002 10:48:49 AM Central Standard Time,
erhart01@... writes:

> Now, can some of the slowness of running in series be compensated by using a
> higher voltage?
>

George: Yes, but not 100%. AND, it would also probably mean a "higher
voltage" drive-rating which is of no electrical nor mechanical benefit, but
COSTS more, and probably would be more likely to fail for nebulous reasons.

I was amazed to use my first Gecko G210 drives, and the CURRENT into two
drives was less than the "single-coil rating" of ONE of the two motors
involved! The G210 drives "integrate" the chopped higher voltage (I measured
35 VDC unreg.) so that the max.-I, max.-E of the windings is not exceeded,
and I·E=Watts, Watts/35 V. is less than that current! So, a small
transformer was adequate for the DC supply for TWO steppers, driven by two
G210's. It's an education!


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