Re: [CAD_CAM_EDM_DRO] Now have possession of my mill

Hi Dennis,

Sounds like you have quite a beast there :-)

Keep the servo amps and power supply if you can. Assuming they use a
+/-10V control voltage you can use the Rutex step-and-direction to
+/-10V converter. They are a lot cheaper than new motor drives!

Les

Dennis Cartier wrote:

> Well I managed to move that Moog S-24 I purchased on eBay today. It was
> quite an undertaking. Just finding someone to move a 2 ton machine
> 350Km's and not charge me more than I paid for the whole mill was the
> hard part.
>
> The good news is that I received a manual with the mill, and although it
> covers every Moog mill under the sun, it indicates the machine(s) use a
> 5V 1000CPR rotary encoder mounted to the ballscrews. Excellent.
>
> Now I just have to decide how much of the, state of the art, Z-80 based
> controller with its whopping 16K of ram I want to replace. Ummm, all of
> it :)
>
> The machine currently has an 'Inland Motor, AC Spindle servo unit' that
> takes 0-10V signal along with a spindle enable and direction signal to
> control the RPM and rotation of the spindle. It would be nice to keep
> this and somehow interface it to EMC, I am just not sure if I can.
>
> I am bit confused on 1 point. The machine was operated on 480V 3P and I
> want to use 230 3P, and the specs for the spindle controller show either
> 230 or 480 input, then a power transformer with the controller
> delivering 220V to the spindle motor. What is the point of providing
> 480V if the motor only needs 220V? But if it uses 220V ... I'm not
> complaining.
>
> The servos are quite large, and again if the specs in the manual can be
> believed, are 120V DC. Yow. Hmm, that would make for a cheap unregulated
> supply. No transformer required? :)
>
> Well maybe not, each axis amp delivers 16A :(
>
> The existing axis controllers and servo amps are again, Inland Motor
> units. I guess scrap these and use Jon's PWM units?
>
> Last but not least, the tool changer is pneumatic. Have to figure out
> how to isolate and salvage this subsystem, or even if it can be.
>
> Fun times ahead.
>
> Dennis
>
>
>
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