Re: wiring geckos to stepper motors - common wires to where?

Alan,

Thanks for the suggestion, but I tried to get to the white papers
but the link on the www.geckodrives.com website is not active.

I realize how the com is connected to the Campbell board from the
geckos. There is a step, dir and com between the Gecko and the
Campbell.

The question I have is about the 8 wires from the motor. 1 wire is
for A phase, 1 for A' abd the next 2 are to be connected together
and are called common. Then the next 1 is for B phase and the next
B'. Then the next 2 are again connected together and labelled
common. That accounts for all 8 wires. I am assuming that the wires
connected together are just to be left connected to themselves.
Only the other 4 wires for the 4 phases will connect to the Gecko at
A,A',B, and B'. Does that sound correct?


Thanks,
Keith Clark

--- In CAD_CAM_EDM_DRO@yahoogroups.com, Alan Marconett <KM6VV@a...>
wrote:

>
> Hi Keith,
>
> DON'T connect the common wires together! Check out the "white

papers"

> on the Gecko website.
>
> Alan KM6VV
>
> Keith Clark wrote:
> > I am wiring the gecko drives with stepper motors with 8 wires.

The

> > unipolar wiring requires connecting 2 wires together and these

are

> > labelled common. There is on pair for each phase. Where do the
> > common wires from the motor go? I have a common from the Gecko

drives

> > for each motor that goes to the Campbell board but I don't

believe

> > that is where the wire from the motor goes. Perhaps these wires
> > labelled common just connect together at the motor and do not go
> > anywhere else?
> >
> > Thanks,
> >
> > Keith Clark
> >
> >
> >
> >
> >
> >
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