Re: freqmod step clock instability

["patrick mendiuk" <patman-at-home.com>]

I'm using freqmod at 20k steps per inch, at various speeds up to 40 in/min.

-----Original Message-----
From: Ray <rehenry-at-up.net>
To: Multiple recipients of list <emc-at-nist.gov>
Date: Wednesday, August 08, 2001 6:50 AM
Subject: Re: freqmod step clock instability


>
>
>"patrick mendiuk" <patman-at-home.com> wrote
>
>>Has anyone experienced step pulse instability? =20
>>I have been monitoring the step and dir pulses and have been seeing =
>>glitches in the step pulse stream during moves.  The period sometimes =
>>changes as much 200% during what should be constant velocity during the =
>>move. =20
>
>Patrick
>
>It's running!  What motion module, speed, and steps per unit are you
>using for your tests?
>
>Ray
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>