Jon Elson wrote: > Igor Chudov wrote: > >> Andy, my feeling on the matter, is that your solution is great. I >> should somehow activate these comparators for a short time after a >> speed change command (like for 7 seconds) and then disable them >> afterwards. That way reversing with a VFD, is not a problem. >> >> > There is a spindle-at-speed function that could be used to decide when > the speed control logic has finished. > You'd set up a FF that is set when a speed change command is issued (not > sure how to detect this, but maybe watch commanded spindle speed for the > value to change) and then clear the FF when the at-speed indication goes > true. > Whatever it is that decides whether the spindle is at speed will provide detection of a speed change. Just look at the signal that feeds at-speed.
- Steve ------------------------------------------------------------------------------ This SF.net email is sponsored by Make an app they can't live without Enter the BlackBerry Developer Challenge http://p.sf.net/sfu/RIM-dev2dev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
