Re: [CAD_CAM_EDM_DRO] Re: Gecko 201 how to

Joe Vicars wrote:

> Tim, Matt, Elliot,
>
> I also have a pile of guts from the inside of my series 1 CNC. I am
> hoping to find a shop that will have one still running and needs
> spares.
> The BIG transformer in mine was 230 or 460 3 phase Primary. 60, 70,
> 80V secondaries.

This may be hard to use without 3-phase power.

>
> The 24 volt supply is in the control cabinet just under the tape
> reader.
>
> The three identical things I thought were transformers are:
> Part #1921375 Saturable Reactor... What the hell is that?

This is used to reduce idle current on the motors when they are
not moving. When the motors need to move, the controller turns
on a small current through many winding turns that saturates the reactor,
thereby increasing voltage and current to the motors.

Jon