Re: Re: Re: Re: Re: GE 1050CM control

Gus

Don't know your definition of expensive for the resolver/encoder converter
cards but I've seen them for about $300 an axis. The device that I want to
recommend isn't quite ready for the retail market -- perhaps a month away --
and no list price yet.

If you can fit encoders where the resolvers were and want to use the EMC, I
would think that this would be a better option for about the same money but
more time.

I'd guess that each of the axis motors has a tach built in someplace. You
are probably seeing it in the spindle because it is outboard from the motor.
As long as you use the existing motor amps, you will need to keep the tachs.

Aux I/O is handled almost on a per machine basis when you use the EMC. Axis
limits and home signals are in there with axis motion commands. There is one
bridgeport definition that includes spindle, lube and coolant. Beyond these
we will have to do some custom work. The quick answer is that you can
control the tool changer and the arm similar to the way they work now but you
will have to write your own module, or get the emc list to help with this.

HTH

Ray

BTW I see the concern about 250 as the magic number. Long ago, I serviced
some old lathes that used these controls. They ran 200 ipm. Is the current
device running this fast? If not, I've seen a bunch of Mazak VQC's on the
used market for not a lot more than you will have in time and material on the
Monarch. These claim to run 750 ipm.

>    From: "Harlan Gustafson" <accellodyne@...>
> The position feedback is by resolver.  Are the interface cards you spoke of
> expensive?  It might easier and more reliable to just install modern
> encoders.  The spindle has both position(resolver) and dc tach feedback.
> What about the tool changer?  This is very important to me.  Will EMC
> handle that?  Also, the Monarch has an "arm" which is really the entire
> milling head, spindle, motor, quill, etc. and it moves in 1" increments
> parallel to the Z-axis.  It has a definite sequence of unlocking, moving to
> next position, seeking exactly that position, then finally locking in
> place. This can be initiated manually from the console or from the program
> with an M-code.  Could we contol the "arm" with EMC?  If I am asking too
> many questions, tell me and I'll shut up.
> Thanks,
> Gus