I am having a problem with G96 CSS.
With a start dia of 4.6 inches, D=1000 S=300 My spindle comes up to speed the joints move to start of cut but I do not get a spindle at speed and the joint sits.
It is the same for an X or a Z movement. My lathe is a backtool and this is done with the spindle in reverse or CCW. Testted with CW same thing.
As I raise the SFM higher and higher it will eventualy start to cut. But the speed is well above the 1000 rpm max and the system will take the spindle to absolute max 2500 rpm.
This started with the Gmoccapy GUI so I setup Touchy, I am also seeing the same behavior with Touchy. Also now seeing it with AXIS.
For now I have inserted G97 and it works at a fixed speed no CSS.
Code:
# ---Encoder feedback signals/setup---
setp hm2_5i20.0.encoder.02.counter-mode 0
setp hm2_5i20.0.encoder.02.filter 0
setp hm2_5i20.0.encoder.02.index-invert 0
setp hm2_5i20.0.encoder.02.index-mask 0
setp hm2_5i20.0.encoder.02.index-mask-invert 0
setp hm2_5i20.0.encoder.02.scale 2000
net spindle-index-enable motion.spindle-index-enable <=> hm2_5i20.0.encoder.02.index-enable
net spindle-revs motion.spindle-revs <= hm2_5i20.0.encoder.02.position
# ---setup spindle control signals---
net spindle-enable <= motion.spindle-on
net spindle-cw <= motion.spindle-forward
net spindle-ccw <= motion.spindle-reverse
net spindle-brake <= motion.spindle-brake
net spindle-speed-out abs.2.in <= motion.spindle-speed-out
# Change velocity to RPM
setp scale.1.gain 60
net spindle-velocity motion.spindle-speed-in near.0.in2 scale.1.in <= hm2_5i20.0.encoder.02.velocity
# End Velocity to RPM
# *** Spindle speed control
# PWM Generator signals/setup
setp hm2_5i20.0.pwmgen.02.output-type 1
setp hm2_5i20.0.pwmgen.02.scale 0.00094
net spindle-enable hm2_5i20.0.pwmgen.02.enable <= pid.2.enable
net spindle-vel-cmd pid.2.command <= abs.2.out
net spin-pid-out pid.2.output hm2_5i20.0.pwmgen.02.value
# *** End
# *** spindle at speed
setp near.0.scale 1.2
net spindle_speed_reqst_scaled near.0.in1 <= motion.spindle-speed-cmd-rps
#net spindle_ena_spindle_spd and2.12.in1 <= near.0.out
#net spindle_for_rev and2.12.in0 and2.3.in1 <= or2.5.out
#setp near.0.scale 1.2
#net spindle_speed_reqst_scaled near.0.in1 <= motion.spindle-speed-cmd-rps
#net spindle_ena_spindle_spd and2.12.in1 <= near.0.out
#net spindle_for_rev and2.12.in0 and2.3.in1 <= or2.5.out
# *** End Spindle at speed
Jim
