On Wednesday 06 April 2016 19:18:15 Marshland Engineering wrote: > Summary of replies > > >It might work better with an inner speed loop and an outer position > > loop. > > Not sure what this means. > > >INPUT_SCALE and > >DEADBAND > > No INPUT_SCALE parameter > DEADBAND=0 > OUTPUT_SCALE=10 > > >Can you run those drives in velocity mode? > > My servo drives in velocity mode require a tacho feedback. > > > Did you read control theory? Use the automatic tuning functionality > > within > > linuxcnc? > I can't seem to find this ?
"man 9 at_pid" from the command line. > > You mentioned linear scales as the feedback source, and many of > > those, while > > accurate, are > > >not (from previous postings I recall) close enough to real time. > > Sorry, they are glass scales and I they should be as fast the motor > encoder. They output A/B/Z then? Although for a linear, it seems Z might be optional as that is intended to be for rotary encoders, where Z is true for a short period once each revolution of the encoder's wheel/shaft. > Thanks Wallace. > > > > ---------------------------------------------------------------------- >-------- _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
