Re: [CAD_CAM_EDM_DRO] Accuracy of Step/Dir Driven Brushless Servos

In a message dated 12/7/2002 9:13:02 PM Eastern Standard Time,
mark@... writes:

> I really need some input. Does anyone have any experience with
> driving brushless servo motors with Step/Dir signals? My plan is to
> use the Rutex 997 board that inputs step/dir signals from the
> parallel port and outputs the 0-10v signal to my Aerotech drives.
> The Rutex board also receives encoder feedback. My question is: Am I
> sacrificing accuracy with this approach? (or anything else?) Also,
> will my encoder feedback go to both the Rutex board as well as the
> drive/amp because the amp has encoder input too. Any feedback
> greatly appreciated!
>
> Mark
>

Mark:

You might want to take a closer look at those amplifier / drives. The ones
you already have very well may take step/direction inputs already without the
need for another board. I know a lot of the brushless systems do this, I am
more familiar with Emerson brushless and I know the ones I have used of
theirs does this.

Randy


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