RE: [CAD_CAM_EDM_DRO] One direction Gecko????

>

This happened to me. The direction opto isolators went bad in two Gecko
G201's at the same time. Everything was working fine one day and the next
time I turned the machine on both drives would only go in one direction.
This was probably due to lightning in my case.

Terry

> I bought a Gecko driver off of LloydLeung in this group and it only
> turns the stepper one direction. Strange huh??
> Ive tried hooking it up in place of the other 2 geckos that I have,
> connecting it to different motors, but I still cant get it to turn
> any of them more than one direction, CCW.
> I initially thought it was the motor, but It wasnt.
> I then thought it might be the parallel port pinout from my breakout
> board,after switching all of the pins around to other drivers(both
> hardware wise and software) I discovered that it wasnt.
> Then I thought, well maybe I had wired it up wrong some how, so I
> took apart and reassembled everything about 10 times and still got
> the same results no matter what pin the step/dir' were running off
> of.
> I now am pretty sure it is defective. And when I asked Lloyd for
> help figuring this thing out, all he could say was either it should
> work or it doesnt.And I should ask someone else for troubleshooting.
>
> He then suggested me to query the list and see what I can come up
> with. Or contact Mariss and ask him.
>
> Anybody ever hear of this happening with a Gecko G201?
>
> It would be great if someone could maybe suggest something for me to
> check, and possibly make this thing work the way it was designed to.
> If not, then I guess I got the old Ebay screw job, and am stuck with
> a driver that only goes one way, because Lloyd has no intention of
> replacing it or the money I paid for it.
>
> Anybody ever hear of this happening with a Gecko G201?
> Any ideas??
>
> Thanks in advance
>
> Joe
>