many thanks for reply, i appologize for missing information. The ebay controler seems to be not very good, i have many problem and have burned these controler after too much attempt for make it work...
For now the new kbmg is not delivered but i have received a new DAC from China and i try to make it work with multimeters. https://www.google.com/url?q=https%3A%2F%2Ffr.aliexpress.com%2Fitem%2F32957301191.html%3Fspm%3Da2g0s.9042311.0.0.23826c37my8Er9&sa=D&sntz=1&usg=AFQjCNEQQ9klEreORPj9Bllr_HtK0Lp-Mw I have do some investigation and i think the most problem is from pid closed loop The pwm signal monitored with watch -n0.4 halcmd show pin hpg.pwmgen.00.* show me some result : (pid Igain = 0, Bias = 60, Pgain = 1, scale = 120, min =-115, max = 115) ask M4 S3300 = 5% pwm so value are 4.95 ask M4 S1 = ~50% pwm so value are 60 ask M3 S1 = ~50% pwm so value are 60 ask M3 S3300 = 95% so value are 114.95 I agree with you these is not perfect because stop spinlde = 0%.... with R-0-F the drive have a "enable signal input" i hope these is safe... the problem come when i change Pgain = 0 and Igain = 0.1 or 1 etc ask M4 S3300 = 0% pwm so value decrease quickly to -120 ask M4 S1 = ~50% pwm so value are 60 but decrease slowly to -120 ask M3 S1 = ~50% pwm so value are 60 increase slowly to 120 ask M3 S3300 = 100% so value are 120 Maybee i have these problem only because encoder show 0rpm for the moment (motor can't run without controler), but i think hpg.pwmgen.value need to stay in, range 0/120 or better 5/115. setting setp lim-s-speed.min 5 seems to not work fine. I don't understand how to do the job. Many thanks, Br -- 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 [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/machinekit/7c08450f-bd60-4c5e-993b-0574fcf0606d%40googlegroups.com.
