Re: [CAD_CAM_EDM_DRO] Refitting a Lynx

hllrsr@... wrote:

>Guys,
>I have a chance at getting a good deal on a burning table but am in need
>of some help.
>The rig is an Union Carbide CS-56 table with the original GE amps left
>on it, and a Lynx Technologies controller scabbed onto it.
>The GE amps are smoked and I need to know what (if anything) would be a
>reasonably easy hook up to replace them?
>Geckos?
>The motors are Balder dc servos at approx 80 volt, 5A.
>Any help greatly appreciated.
>
>

You need to find out what feedback devices are on the servo motors. If
they have both
encoders and tachometers, then almost any servo amp (Westamp, Servo
Dynamics,
Kollmorgen, Copley Controls) should work. Assuming these are brush
motors, you need amps
that will drive that motor type. If no tachometers are fitted, that
narrows the choice a
bit. Geckos will work if you want to use a stepper-oriented CNC program.
But, you get a bit more flexibilty using a program that accepts encoder
feedback, such
as DRO-like operation when the servo amps are off, and sensing of
position error
when they are on.

Jon