Can you run those drives in velocity mode? I think that would be a lot easier to tune. I would avoid torque mode if possible. Life will be easier.
Dave On 4/6/2016 4:53 AM, Marshland Engineering wrote: > I finally have my mill table moving under CNC control. > > I'm using a 70 volt supply with DCM D6 drives in Torque mode, Mesa 7i48 cards, > Linear scales for position and 1.2 kw DC brush motors (my guess on the power > as they are 90 volt motors but no current rating) > > The only way I can get any control over the travel is setting P = 0.5 which of > course makes the position accuracy poor. Any more P and I get sever > oscillation. With the size of motor and the 1m table, there is quite a lot of > inertia in the system. > > Anyone suggest starting values or any other suggestions to get this under > control. > > Thanks Wallace. > > > ------------------------------------------------------------------------------ > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
