On Sun, 2008-11-30 at 19:52 -0800, Kirk Wallace wrote: > On Sun, 2008-11-30 at 20:20 -0700, [EMAIL PROTECTED] wrote: > > 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 > > This drive has its own PID feedback built in. You may need to decide > which PID loopback system you want to use, EMC2 or servo drive. I would > go with a "dumb" motor amp myself. Or, others here have a way to deal > with "smart" drivers. Or, I may be, all together, off base. > ------------ > Kirk > http://www.wallacecompany.com/machine_shop/
Oops, I just realized you are driving brushless motors, so maybe you need to remove the EMC2 feedback PID, drive the driver from EMC2 in open loop like a stepper or DC Gecko drive. The PID tuning will be done on the brushless drive using the vendors tuning software. (?) ------------ Kirk http://www.wallacecompany.com/machine_shop/ ------------------------------------------------------------------------- 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
