On Wednesday 10 February 2021 23:09:36 Jon Elson wrote: > On 02/10/2021 07:08 PM, Gene Heskett wrote: > > But is the error also in degrees? The halsope is > > measuriing volts and I have not found anyplace where it > > states the error is in the same sized unit the rest of > > that particular servo is using. And, if its degrres I > > should have tripped a coup le dozen or more times while > > playing as I'm seeing very short term peaks that are 2x > > that setting.. Thank you Jon. Cheers, Gene Heskett > > Halscope measures "Units". It has no idea what they mean. > Position and following error > are in "user units", ie. whatever you have defined them with > in your SCALE parameters in > the .ini file. Velocities are in user units/second, except > encoder deltas are in counts/servo period. > > So, looking at PID_ERROR with Halscope, with a scale of > 200u, and assuming inch units, > that means one vertical division is 200 uInch, or 0.0002 inch. > > The only place Volts really show up is in velocity DAC > commands, where a properly scaled DAC driver would show the > same thing as a physical analog scope hooked to the DAC output. > > Jon > Thanks Jon. Printed, I'll take it to the machine and see if I can mentally translate what I'm seeing into degrees.
I went to take the bs-1 off its table, and found I can't take it very far as I have negleted to build a 2nd set of inline connectors so I can disconnect the encoder and really take it away. And I've yet to come up with a scheme to detect that it is plugged in, and if not, disable linuxcnc's ability to see an error because its not there. 2 of my machines need such a bit of ini and hal magic. > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > 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) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis Genes Web page <http://geneslinuxbox.net:6309/gene> _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
