Okay the direction issue may be solved with pwmgen type 1 (which is discussed in another post from me) so it is not important in this post.
The Index signal issue in the other hand may be because of electrical interferences (i have to look for that) Am Sonntag, 6. November 2016 16:33:46 UTC+1 schrieb Sag ich Dir nich: > > Hi, > > i am using a Cramps board and want to control a spindle with an encoder to > spin in both directions with working PID but the problem is: > > *1*. The PID only works correctly in cw direction, if i reverse the > direction the spindle reverses but the PID does not try to hold the > velocity. It only does that when i set the PID minimum output to -8500 (if > i set it to the maximum rpm 8750 the spindle does full speed in either > direction even when i command 100rpm). > the problem with that is when i turn the spindle on and manually turning > it faster than the commanded speed, it speeds up to maximum speed. (seems > like the PID tries to slow down but does not reverse the direction so it is > in a loop trying to slow down by decreasing the speed but actually > increasing it (i dont know how to explain it better)) > > working spindle reverse is important to me because i want to do rigid > tapping. > > is it possible to have a encoded spindle with spindle soft start? > > *2*. sometimes the Spindle stutters every second one or sometimes two > times in a row when turning cw with the working PID. When in reverse > without working PID (only PWM) it does not happen. > > *3*. the index pulse is often undetected (i am using a 512ppr encoder > with A,B and index pulse, i also soldered pull-up-resistors to improve rise > times like the instruction said) > > so currently i am using the eQEP 0, which shares two signals on the A and > B pins, maybe the stutter is gone when i use eQEP 1 or 2 because they have > only one signal attached? > The Pins for eQEP 1 and 2 are not setup in the setup.sh file, can i just > add them? > > i uploaded my whole machine config > > i hope someone can help me > -- website: http://www.machinekit.io blog: http://blog.machinekit.io github: https://github.com/machinekit --- You received this message because you are subscribed to the Google Groups "Machinekit" group. To unsubscribe from this group and stop receiving emails from it, send an email to machinekit+unsubscr...@googlegroups.com. Visit this group at https://groups.google.com/group/machinekit. For more options, visit https://groups.google.com/d/optout.
