Re: [CAD_CAM_EDM_DRO] A Mouse's' Tale: ref: kitamura zero z axis amp

Ken Campbell wrote:

>Being as how it's a week end, I thought you all might like to share some of
>my misery... and give me some advice ... off list unless it would apply to
>the list in general.
>****
>A mouse incredibly found it's way into the main box of my Kitamura zero (
>1988 with Kit 100 computer,8000 rpm spindle, 12 tool carousel ) :: this
>was bad enough, but the little guy chewed through all kinds of wiring ...
>and somehow resulted in burning out the z axis amplifyer. we got the main
>computer working, but the z amp appears trashed. simple :Call Kitamura::
>oops, the 1988 machine is obsolete, no longer supported. they could have a
>z amplifyer built in japan, take 6 months, and be about $10 K ( 10 0 0 0 )
>... eeek. OK, check out retrofit ... $10K from centroid ....
>************
>the biggest problem is that we are a very small shop, and 10K is too big a
>load to swing in the near future.
>the iron on this little cutie is still very nice, and is still as accurate
>as ever ... any ideas? The main box talks to one PLC, and half the
>actuators are pnuematic, including the tool carousel and main spindle clamp
>and changer arm sequence.
>
>

What type of servo amp does it use? If it is a +/- 10 V velocity servo,
you can get a
Copley Controls amp for about $400 new, or a used Copley or Servo
Dynamics on
eBay for $100 - 150. The Copleys are TINY, and will fit inside any
imaginable nook
in the cabinet.

Jon