Spindle at speed - time delay
16 Sep 2022 07:06 #252066
by tommy
Spindle at speed - time delay was created by tommy
I have configured my machine with mesa configurator, so spindle configuration is:
As I don't have feedback from VFD when spindle is at speed, I would like to add time delay. What would be the correct way to do it?
# Spindle
# Spindle Velocity Pins
net spindle-vel-cmd-rps <= spindle.0.speed-out-rps
net spindle-vel-cmd-rps-abs <= spindle.0.speed-out-rps-abs
net spindle-vel-cmd-rpm <= spindle.0.speed-out
net spindle-vel-cmd-rpm-abs <= spindle.0.speed-out-abs
# Spindle Command Pins
net spindle-on <= spindle.0.on
net spindle-cw <= spindle.0.forward
net spindle-ccw <= spindle.0.reverse
net spindle-brake <= spindle.0.brake
net spindle-revs => spindle.0.revs
net spindle-at-speed => spindle.0.at-speed
net spindle-vel-fb-rps => spindle.0.speed-in
net spindle-index-enable => spindle.0.index-enable
# Set spindle at speed signal
sets spindle-at-speed true
# Spindle Board Connections
net spindle-on => hm2_7i95.0.pwmgen.00.enable
net spindle-vel-cmd-rpm hm2_7i95.0.pwmgen.00.value
setp hm2_7i95.0.pwmgen.00.scale [SPINDLE]MAX_RPM
setp hm2_7i95.0.pwmgen.pwm_frequency [SPINDLE]PWM_FREQUENCY
setp hm2_7i95.0.pwmgen.00.output-type [SPINDLE]SPINDLE_PWM_TYPEAs I don't have feedback from VFD when spindle is at speed, I would like to add time delay. What would be the correct way to do it?
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16 Sep 2022 11:30 #252070
by tommylight
Replied by tommylight on topic Spindle at speed - time delay
You can add a delay in gcode by using G04 Pn , where n is the time in seconds and should be 2 or more seconds over the "ramp up" time on the VFD, just to be sure.
Also this way you can edit and change it without reloading LinuxCNC and homing and ....
Also this way you can edit and change it without reloading LinuxCNC and homing and ....
The following user(s) said Thank You: Aciera
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16 Sep 2022 12:48 #252074
by Aciera
Replied by Aciera on topic Spindle at speed - time delay
Should you want to handle the delay outside of your gcode you could add the delay in your hal file by replacing this:
# Set spindle at speed signal
sets spindle-at-speed true
with this for a 5s delay (or change value in line 3)
loadrt timedelay count=1
addf timedelay.0 servo-thread
setp timedelay.0.on-delay 5
net spindle-on => timedelay.0.in
net spindle-timer <= timedelay.0.out
net spindle-timer => motion.spindle-at-speed
See the discussion of the above solution and other options here:
forum.linuxcnc.org/21-axis/29564-automat...tarted?start=0#61840
# Set spindle at speed signal
sets spindle-at-speed true
with this for a 5s delay (or change value in line 3)
loadrt timedelay count=1
addf timedelay.0 servo-thread
setp timedelay.0.on-delay 5
net spindle-on => timedelay.0.in
net spindle-timer <= timedelay.0.out
net spindle-timer => motion.spindle-at-speed
See the discussion of the above solution and other options here:
forum.linuxcnc.org/21-axis/29564-automat...tarted?start=0#61840
The following user(s) said Thank You: Clive S
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17 Sep 2022 01:00 #252133
by cmorley
Replied by cmorley on topic Spindle at speed - time delay
It;s too bad we don't have a pin from motion like: waiting-for-spindle-at-speed and that would make it easy.
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