On Tuesday 05 May 2020 21:19:23 Dan Henderson wrote: > I have LinuxCNC fully operational. In halscope I’m able to view the > signals for both the spindle index, phase a, and I now have phase b > hooked up. I’m conducting my testing with the LinuxCNC MDI. The > number on the opto chips is EL817C807. > The BOB PN is DB25-1205.
ok, using the halscope, take a look at the pid.command input, pid.output and the pid.feedback input. If the command input is wandering around, its a control problem. If the output was wandering around, disconnect and ground the pid.feedback pin if it goes to a higher speed, steady, its a feedback problem. Look at the feedback at various motor speeds, ideally you should only see a relatively low variation you can divide into a repeating 4 step pattern if its a quality encoder. Larger than 20% variations should be traced back to the src. And fixed. And tell us what you you see and where. 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 [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
