RE: [CAD_CAM_EDM_DRO] Re: Gecko connection to unipolar stepper??

COMMON only means 'shared' on GECKO products. Elsewhere in the electronics
world COMMON means ground or the common point between a split supply which
is still usually earth or ground. Call it LINKED if you will or SHARED or
SIGNAL_RETURN or SIGNAL_SUPPLY or SIGNAL_SHARED or SENSOR_RETURN or
SENSOR_DRIVE.

Yes, I'm sure it's possible to find designers out there that will call it
something different from lack of experience or to obfuscate their designs
but IMHO it was a mistake to call it COMMON.

Alas, that's the way it is now once a product has been out for a while.
Pretty difficult to change to something else but it doesn't make it right.

John Dammeyer

> -----Original Message-----
> From: CAD_CAM_EDM_DRO@yahoogroups.com
> [mailto:CAD_CAM_EDM_DRO@yahoogroups.com] On Behalf Of Mariss Freimanis
> Sent: Wednesday, May 17, 2006 10:15 AM
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> Subject: [CAD_CAM_EDM_DRO] Re: Gecko connection to unipolar stepper??
>
>
> COMMON means "shared". What would you call it on a G210/G212 where
> COMMON can be jumper-configured as either +5V or GND?
>
> Mariss
>
>
> --- In CAD_CAM_EDM_DRO@yahoogroups.com, "ballendo" <ballendo@...>
> wrote:
> >
> > Mariss,
> >
> > I have ultimate respect for you as a product designer, but...
> >
> > Calling that term 10 "common" was/is a mistake?<G>
> >
> > Sure, I understand what you were thinking at the time--you've
> posted
> > before the rationale--but it sure seems to confuse a whole bunch of
> > folks that visit these forums...
> >
> > Ballendo
> >
> > --- In CAD_CAM_EDM_DRO@yahoogroups.com, "Mariss Freimanis"
> > <mariss92705@> wrote:
> > >
> > > So far so good; that is correct. Make sure the two unused wires
> > are
> > > insulated and not touching each other or anything else. Use a 33K
> > > current set resistor, connect 5VDC from your PC to COMMON (term
> > 10),
> > > STEP and DIRECTION and you're good to go.
> > >
> > > Mariss
> >
>
>
>
>
>
>
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