I will try it with load tomorrow or next monday, because I'm finishing with the encoder coupling for the screw. I never tried the autotunning but it is supposed to tune all the motor parameters to get better torque. I hope that helps to improve the positioning. Anyway as I told before I don't need centesimal accuraty, but now I need to ged rid of that oscillation that doesn't stop. I will try and see what happens the I'll tell you. Off course I'll be uploading some videos when it's working :).
Thanks as always! 2013/12/6 Jon Elson <el...@pico-systems.com> > On 12/05/2013 09:35 PM, Leonardo Marsaglia wrote: > > 2013/12/5 Jon Elson <el...@pico-systems.com> > > > >> Is this a flux vector drive, or a standard VFD? A > >> flux-vector drive can > >> perform the computations to keep the rotor excited without > >> moving > >> it. A standard VFD cannot, it has to move the motor to > >> excite the > >> induced field in the rotor. So, it will keep "dancing". > >> > > It says that is a FOC (field oriented control) ac drive, so I guess it's > > not a standard VFD. Anyway it has a lot of options even an autotunning > > feature so may be I'ts not well configured to get the maximum out of it. > > Now I have set it to work only with +/- 10 volts and without any > > acceleration or breaking assistance, so all the acceleration a > deceleration > > it's done by the PID of LinuxCNC. > Ah, then do the autotune and turn off most of the PID > features in LinuxCNC. > Don't use any I, a low P value and just a little D, and no > FFx. Let the > drive do most of the hard work. You will probably need to redo > the autotune when the motor is connected to a load. > > Jon > > > > ------------------------------------------------------------------------------ > Sponsored by Intel(R) XDK > Develop, test and display web and hybrid apps with a single code base. > Download it for free now! > > http://pubads.g.doubleclick.net/gampad/clk?id=111408631&iu=/4140/ostg.clktrk > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > -- *Leonardo Marsaglia*. ------------------------------------------------------------------------------ Sponsored by Intel(R) XDK Develop, test and display web and hybrid apps with a single code base. Download it for free now! http://pubads.g.doubleclick.net/gampad/clk?id=111408631&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
