> From: andy pugh [mailto:bodge...@gmail.com] > On Thu, 16 Jul 2020 at 02:44, John Dammeyer <jo...@autoartisans.com> wrote: > > > The stuff that uses the limit2 was cut and pasted from a web page. I > > never expected it to work first time. > ... > > net spindle-cmd <= motion.spindle-speed-out => spindle-ramp.in > ... > > The error message is that motion.spinde-speed-out is already assigned. > ... > > net spindle-vel-cmd-rpm <= motion.spindle-speed-out > > Use spindle-vel-cmd-rpm as the signal everywhere and it should sort > out the problem. > > You are trying to assign two different signals to the same output.
Not so much that I was trying to assign. It turns out the 'near' component name from the pasted code was named the same as the At Speed Indictor in the pyvcp_panel.hal. So the conflict was from a different file. It was easy enough to get the spindle to ramp up slowly by setting the setp spindle-ramp.maxv 10 although this might be a tad slow but for now shows that motion doesn't start instantly. The problem was the LED wouldn’t work since the spindle-at-speed was now a near component as the pyvcp_panel.hal is loaded last. Changing that to have led text at the end solved the name problem. net spindle-at-speed-led => pyvcp.spindle-at-speed-led And now the LED switches to green when the ramp value is 'near' the set value. net spindle-at-speed-led <= spindle-at-speed.out => motion.spindle-at-speed However, it doesn't solve my problem. An M5 or the click on the stop button on the AXIS interface causes an instant stop rather than a controlled deceleration. If I do an S3000 M3 it ramps up nicely. If I do an S1 then it ramps down nicely and stops since the PWM hardware can't do 1 RPM. The M3 is still active and I can do an S200 and it starts up But if I do an M5 from 3000 RPM it stops now! What I may do is hardwire the Spindle Servo Motor drive Enable so that the BRAKE output disables the Drive ENABLE. Then when the spindle is spinning at 3000 RPM and M5 which turns on the Brake occurs the disabled spindle enable signal will allow the motor to coast to a halt. And that means when the spindle is idle the motor is also disabled. Or just wire the spindle enable to a separate physical output. John > atp _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
