aram [EMAIL PROTECTED] wrote: >> 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. (?) >> > why do i need vender software? > EMC2 will close loop. > SD94 come with package that includes stuff that i do not need. > It is good but has special sofware etc that i do not need. > > > > >> ------------ >> 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 >> >> > > > > ------------------------------------------------------------------------- > 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 > > you are right emc will close your loop
kirk suggests that the driver tuning may be complicated by emc control he is correct the emc loop contains the driver loop but dont worry, it is a small issue begin by using the manfacturer's tuning instructions to move nice without emc then use emc to move , and adjust the parameters for your best result ( this is exactly the course you have followed ) there is a small issue of performance dont let small things stop the big thing :) your system will be stable enough to adjust better at a later time it will not be all wrong it will be good perfect is very difficult :) begin with good! best of luck tomp ------------------------------------------------------------------------- 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
