Re: burning Gecko drive

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "theokspindoctor" <mail@t...>
wrote:

> Jon, I think I understand that the 210 will just make more steps

and

> not fewer steps. I will keep working with the 201s for now. I

hope

> you might look over this.
>
> Ok, just burned out my Gecko drive. the motor looks like this
>
>
> 3 2
> 5 8
>
> 6 7
> 1 4
>
> 2-8 one winding
> 3-5 "
> 6-1 "
> 4-7 "
>
> Originally it was wired as below to the Gecko by my installer. It
> worked that way but the maximum rapid I could get was 20 ipm
> phase A+ to 2
> phase A- to 1
> phase B+ to 8
> phase B- to 6
>
> I rewired it tonight as below and it burned it up. Why?
> phase A+ to 1
> phase A- to 6
> phase B+ to 2
> phase B- to 8
>
> Les Newell said his were wired as below and worked fine for him.
> Shouldn't his have burned as well? It looks the same as mine above.

> phase A+ to 2
> phase A- to 8

2 and 8 are one coil

1 and 6 are the other coil

> phase B+ to 1
> phase B- to 6

your motors are not 2-8 and 1-6, but 1-2 and 8-6

Guess you just found out the hard way that every motor is different.

You connected one coil (1-2) to the other coil (8-6) and creatd a
dead short.

Dave