I have no experience tuning one of those drives. (but my experience with torque mode was less than wonderful.) Just curious was your machine a retro fit that was originally equipped with those drives, or is it a new install of these drives? Were the drives velocity loops tuned for your machine before you tried to use them? If they weren't properly tuned for velocity command input on your machine it isn't surprising that they may not work well in that mode. (While I haven't tuned those drives for Linuxcnc, I do have a machine that uses them with another control in I assumed velocity mode, I just haven't had to mess with them.)
Todd Zuercher P. Graham Dunn Inc. 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 -----Original Message----- From: andrew beck <andrewbeck0...@gmail.com> Sent: Wednesday, September 01, 2021 2:16 AM To: Enhanced Machine Controller (EMC) <emc-users@lists.sourceforge.net> Subject: Re: [Emc-users] torque mode tuning yaskawa servo drives [EXTERNAL EMAIL] Be sure links are safe. hey everyone got good news to report back here! i changed to torque tuning and its like 10 times better than velocity tuning in these drives someone one the forum said that he was starting to suspect that the velocity tuning on the yaskawa drives was really that bad so they allowed a torque feedforward setting to fix it lol anyway my initial findings were torque control is awesome i will post back later with more tuning findings regards Andrew On Mon, Aug 30, 2021 at 2:57 PM andrew beck <andrewbeck0...@gmail.com> wrote: > hey everyone > > i am trying to tune my yaskawa sigma 1 series servo drive at the > moment and thinking about using torque mode for tuning. > > currently the process is auto tune drives to a rigidity setting and > then control drives with velocity reference in linuxcnc. I am not > getting the most amazing control and any P value over 8 means the > drive starts vibrating. i have tried a range of rigidity settings in > servo drive > > i have never set up linuxcnc to control torque mode and just wondering > if what the correct way is? is it the same as velocity control in > terms of the pid loops and hal layer? or is there another whole level > of stuff i need to do > > and i saw that i needed to speed up the servo thread a bit to get > better performance if using torque mode > > anyway let me know your experiences > > regards > > Andrew > _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.sourceforge.net%2Flists%2Flistinfo%2Femc-users&data=04%7C01%7Ctoddz%40pgrahamdunn.com%7Cfc80be69a1454359543408d96d11c596%7C5758544c573f47cebee96c3e0806fb43%7C0%7C0%7C637660745400285926%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=ckvQRiz%2BQ4YLSZDX2NMPq83dEUQkyho5vv1wopbYYKU%3D&reserved=0 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
