RE: How can I change the polarity of the direction signal?

["jguenther-at-loudoun.com" <jguenthe-at-loudoun.com>]

Tim,

Thanks!  I am at work to but I will try that as soon as I get home.  I knew
it had to be something simple like this.

John Guenther

> -----Original Message-----
> From: emc-at-nist.gov [emc-at-nist.gov]On Behalf Of Tim Goldstein
> Sent: Tuesday, March 13, 2001 12:02 PM
> To: Multiple recipients of list
> Subject: RE: How can I change the polarity of the direction signal?
>
>
>
> You change the sign of the OUTPUT_SCALE (I think, it may be the
> INPUT_SCALE). One handles the direction of the signal to the steppers, the
> other handles the direction of the signal from the encoders. If using
> STEPPERMOD you only need to change the one. If using FREQMOD you have to
> change both. The one you want to change it the top one of the two in the
> .ini file. It is the same value you change for setting the steps per unit
> except you are changing the sign, not the value.
>
> Sorry I am at work and don't have an .ini file to look at to give you a
> definitive answer.
>
> Tim
> [Denver, CO]
>
> > -----Original Message-----
> > From: John Guenther [jguenthe-at-nafis.fp.trw.com]
> > Sent: Tuesday, March 13, 2001 9:43 AM
> > To: Multiple recipients of list
> > Subject: How can I change the polarity of the direction signal?
> >
> >
> >
> > My question is, how can I change the polarity of the direction signals
> > without using negatifve values for movement?  I would like to
> > be able to
> > switch the polarity of the direction signal so that positive movement
> > commands would move the machine in the proper direction.  I suppose
> > I could rewire the steppers, but I would rather not.
> >
> > John Guenther
> >
> >
>
>