Re: wiring Gecko drivers

The stepper rate seems not to be the problem. The GEckos are
limited to 7 amps and the motors are rated at 9 amps unipolar and
12.7 amps bipolar. What does that mean in terms of how they are
wired and how they will perform when using the lower amperage
Gecko? Could that be the reason they only move at 20 ipm before
stalling?

Keith

--- In CAD_CAM_EDM_DRO@yahoogroups.com, Stephen Wille Padnos
<spadnos@s...> wrote:

> JanRwl@A... wrote:
>
> >In a message dated 8/17/2004 12:22:08 AM Central Standard Time,
> >mail@t... writes:
> >Does it make sense that the old Bridgeport motors can't handle

the high rate

> >or is it a problem of how I wired the motor. Do you think the

201s should be

> >able to move a 200 step rev motor at over 60 ipm. <<
> >No clue. Best you refer these questions to others in the group

who WORK with

> >BP's. Mine is manual, and I have no impetus to change it to

CNC.

> >
> >Your second question: I assume you mean with 0.200"/turn

screws? The 201's

> >will want 2000 steps/turn. Then, 60 IPM = 300 TURNS per minute.

300 x

> >2000=0.6 mHz. Hmmm... Dunno. Read the spec. sheet for "Max. f

In"

> >
> I'd say this is off by a factor of 60.
> 300x2000 = 600ksteps/minute, not per second. It's a 10kHz pulse

train.

>
> - Steve