Re: I let the smoke out... motors

--- In CAD_CAM_EDM_DRO@yahoogroups.com, Weyland <weyland@v...> wrote:

> Oops.
>
> Well, got everything wired today, and it
> looked like I was going to see motion at last.
>
> Plugged it all in, fired up the computer portion, switched on the

motor

> power portion, saw that the Geckos had power, computer was humming
> away fine, and satisfied, shut it down and moved it over to the

mill.

>
> Plugged in all back in and grabbed the three cables for the motors.
> Connected a motor and "***BZZT***, **FLASH~!** **WHOMP~!!!!!**"
>
> Oops. There goes the smoke...
>
> Has anyone ever gotten the smoke back inside?
>
> Seems I blew up my regulator on the home-made power supply.
>
> Any ideas why? (besides my being an idiot?)

First thing that come to mind is that you might have had the motors
wires up wrong.

if you did not start pulling things apart, you can do a resistance
check on the Gecko terminals for the motors.

if you get ANY reading between phases, you got a problem.

also loose shielding can do things that are bad.