Sorry, for the record I'll try to be as clear as possible. I have confirmed the fix. When using pncconf with version 2.4.3, I needed to invert the motor signal as determined in the open loop pncconf test. This was also causing the MAX_OUTPUT parameter to be set to negative for that axis. Manually changing the ini file to have a positive MAX_OUTPUT resolved the issue.
Thanks to all who helped resolve this. Scott On Thu, Aug 18, 2011 at 8:26 PM, Scott Hasse <scott.ha...@gmail.com> wrote: > That was absolutely the bug I was hitting. After manually changing the I'm > now moving forward with the PID tuning! > > Thanks all! > > Scott > > > On Thu, Aug 18, 2011 at 8:18 PM, Scott Hasse <scott.ha...@gmail.com>wrote: > >> I'm running 2.4.3 per the live CD. I'll try manually making the max >> output positive again manually. >> >> Scott >> >> >> On Thu, Aug 18, 2011 at 7:18 PM, Chris Morley <chrisinnana...@hotmail.com >> > wrote: >> >>> >>> >>> > >>> > You might check whether pncconf is producing the proper polarity in the >>> > INI file for INPUT_SCALE (for the encoder) and OUTPUT_SCALE (for the >>> PWM >>> > & servos). >>> > >>> > I believe there was a bug in an earlier version of pncconf. I ran into >>> > that and had to edit the INI file by hand to make both values negative, >>> > which was required for my setup. >>> > >>> > Karl >>> > >>> >>> There indeed was a bug in PNCconf that would not negate the encoder >>> scale. That was fixed in 2.4.5 >>> There also was a bug that would create a following error if one inverted >>> the motor direction as it would negate the max output setting too. >>> also fixed in 2.4.5 >>> >>> I asked earlier but I'm not sure you answered Scott. What version of >>> EMC are you using? >>> >>> Chris M >>> >>> >>> ------------------------------------------------------------------------------ >>> Get a FREE DOWNLOAD! and learn more about uberSVN rich system, >>> user administration capabilities and model configuration. Take >>> the hassle out of deploying and managing Subversion and the >>> tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 >>> _______________________________________________ >>> Emc-users mailing list >>> Emc-users@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/emc-users >>> >> >> > ------------------------------------------------------------------------------ Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
