I am using the Mesa 5i20/7i33 system to retrofit my knee mill. I just finished installing a 500 line (2000 ppr) encoder on the spindle, it is connected to the Enc03 quadrature inputs on P2. My timing settings in my ini file are: BASE_PERIOD = 35000 SERVO_PERIOD = 1000000 TRAJ_PERIOD = 10000000 My spindle is capable of turning at a max of about 6000 rpm. But above 3000 rpm, my floating point value on the hal pin: "rev-scaled" starts to bounce all over the place. At full spindle speed my encoder is turning at the rate of 120,000Hz (pulses per second).
My question is: Is this too fast for my servo thread? If so, is it possible to read every other pulse? Thanks, Tom ------------------------------------------------------------------------------ SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. The future of the web can't happen without you. Join us at MIX09 to help pave the way to the Next Web now. Learn more and register at http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
