> 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.
It might work better with an inner speed loop and an outer position loop. Nicklas Karlsson ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
