Re: Servo Drive

John,
I don't think you can get a Rutex at this point.

The analog drive is a good option, maybe expensive if not surplus. You
will also need to find a Rutex 990H or pixie step analog converter
laying about somewhere. I don't think either are available from the
manufacturers at this point. The converters may be problematic or
difficult to tune based on messages I've seen on the various groups.

Granite, in Europe, makes a nice drive for about $250 which puts out
more than the Gecko's but not 180 volts. Baldor makes nice, but
costly, PM digital drives.

Jon Ellison has a nice solution that works under EMC which supports
closed loop control. I looked into it and saw it running at Cardinal.
I don't remember the specs but the cost was reasonable and they were
pretty impressive. EMC's lathe implementation is pretty solid and
handled a much higher than 400 line (may have been 2K) spindle encoder.

If you can wait a bit the ULI drive kit may be the best solution.
Thats the way I'm going. I need 20 amps at 120 volts. I think they max
at 160 volts at 25 amps. See:
<http://www.cnczone.com/forums/showthread.php?t=14217&page=999>

Roger

> What would you guys recommend for a 180 volt servo drive?