Today I received a second AC806 drive in the mail. It is a V1 ACS806. The V1 is simpler to tune. It only has a current loop Kp and Ki, as well as position loop Kp, Ki, and Kd.
I tried that on the same motor that the AVS806V2 is having trouble with. Following error is now down to under 20 counts at full velocity, about 1400rpm, and down to under 5 counts or so at low velocities. Which is well within my needs. So by process of elimination it is some form of setting on the AVS806V2 which is the problem. (which has more parameters, etc... involved with it) I'll keep troubleshooting the V2, but being that an older, basically identical drive is performing properly, that helps me eliminate motor/ps sizing concerns. On Fri, May 2, 2014 at 3:17 AM, Steve Blackmore <st...@pilotltd.net> wrote: > On Thu, 1 May 2014 18:56:23 -0400, you wrote: > > >Thanks to everybody for the information. If anything it helped me > >understand the nature of servos better as I've been sitting here tweaking > >the machine. > > >So it has something to do with some sort of lag in the servo driver. I'll > >be emailing leadshine with my fingers crossed hoping they can help. > > Here are the Specs > > Position following error : +/-1 count > Velocity accuracy: +/-2rpm > Maximum acceleration speed (No Load) : 80 rpm/ms2 > Input frequency up to 600 kHz > Maximum speed : 4000 rpm > Allowable low speed reaches1 rpm > Positioning accuracy :+/-1 count > Suitable for 18 - 80 VDC AC servo > > Are you within them? > > Have you used the available tuning software using the serial connection > to the drive? If not you need to to see what's going on and tune it > properly. You will need to adjust the Kp, Kd and Vp parameters. All > explained in the software manual. > > Steve Blackmore > -- > > > ------------------------------------------------------------------------------ > "Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE > Instantly run your Selenium tests across 300+ browser/OS combos. Get > unparalleled scalability from the best Selenium testing platform available. > Simple to use. Nothing to install. Get started now for free." > http://p.sf.net/sfu/SauceLabs > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ "Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available. Simple to use. Nothing to install. Get started now for free." http://p.sf.net/sfu/SauceLabs _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
