Hi I reduced Default_valacity =1. Max_velacity =2.0 Default_acceleration = 2.0 Max_acceleration =3.0
The picture is: www.conceptmachinery.com/Sh12.jpg I reduced most of them by 2-3 times and graph looks good. I will post it in 20 minutes. I am interesting why my drive can not output more voltage? Not power enough? It is SD-94 8 amp constant from servo dynamic http://www.servodynamics.com/sd94p_servodrive.html thanks Aram > [EMAIL PROTECTED] wrote: >> Hi >> I have another pic http://www.conceptmachinery.com/Sh11.jpg >> On the graph >> X pos-cmd commanded position. >> Xpos-fb >> Xpos-cmd commanded position and it parallel to Xpos-fb. >> That what is should be? >> >> X output begins ok but ends wrong. Think X output should looks like >> trapeze. >> > If you ask for more velocity than the drive can produce, then the > command will hit the limit, as you are seeing. > Try this at a lower speed, and see if it works better. Otherwise, it is > what one would suspect - a wild discontinuity as the drive recovers from > running open-loop for 400 ms. >> What need to change to make second part of X output looks like first? >> My current P 230, I 1.8, D0. >> >> Also pid.0.error should be similar graph to X output, is this right. >> When X output become flat so should be pid.0.error become flat. >> > You are commanding higher velocity than the drive can deliver, EMC is no > longer in control of the motor, so the error is unbounded. > >> What should I change here > Slow down, or change whatever is needed to allow the drive to put out > more voltage (speed) to the motor. > > > Jon > > ------------------------------------------------------------------------- > This SF.Net email is sponsored by the Moblin Your Move Developer's > challenge > Build the coolest Linux based applications with Moblin SDK & win great > prizes > Grand prize is a trip for two to an Open Source event anywhere in the > world > http://moblin-contest.org/redirect.php?banner_id=100&url=/ > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
