Re: [CAD_CAM_EDM_DRO] Gecko wiring question

Do not hook any of the wires from the computer to term 1 or 2. Your ground
for the logic is the step and direction line. The optos turn on when the
step and direction pins are low (or ground) and the current flows from the
+5 V controller source. When the pins go high (+5 v) there is no potential
as both sides of the opto are now at +5 V and no current flows.

Tim
[Denver, CO]
Sherline products at Deep Discount
Mach1 & DeskCNC with Credit Card ordering
www.KTMarketing.com/Sherline
www.KTMarketing.com/DeskCNC

----- Original Message -----

> This is about the wiring of the power to a gecko 201a.
> term.1 power ground
> term. 2 motor power + 24-80V
> Term. 10 5vdc from controller.
>
> OK the question is I run a + an - from the power supply to term 1 and
> 2. no problem. I also run a +5vdc line from the controller.
> but what about the negative for from the controller? do I just run it
> to term.1?
> I read something, but don't remember where about burning the opti
> iso. on geckos if you goofed up the grounding. that is why I'm asking
> this "stupid question".
>
>
> Thanks
>
> Jerry
>
>
> Addresses:
> FAQ: http://www.ktmarketing.com/faq.html