Spindle brake delay vs E-Stop

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6 years 4 months ago #170865 by Tom_R2E3
Spindle brake delay vs E-Stop was created by Tom_R2E3
Hopefully this hasn't been asked before...

My Mill has a spindle brake. I would like to have a delay to the activation of the brake when I stop the spindle, UNLESS I have activated E-stop. Is there a simple way to set this up in the HAL file?

This is my spindle brake section at the moment:
Code:
# -------------------------- SPINDLE BRAKE ------------------------------------ # Intended operation: motion.spindle-brake controls the brake UNLESS the button connected to input-10 is held down loadrt timedelay count=1 addf timedelay.0 servo-thread net spindle-brake xor2.0.in0 <= motion.spindle-brake net spindle-brake-button xor2.0.in1 <= hm2_5i25.0.7i77.0.0.input-10 setp hm2_5i25.0.7i77.0.0.output-00-invert 1 net spindle-brake-both xor2.0.out => timedelay.0.in net spindle-delayed timedelay.0.out => hm2_5i25.0.7i77.0.0.output-00 setp timedelay.0.on-delay 5 setp timedelay.0.off-delay 0

So at the moment I have a second delay for the spindle brake in all conditions.

Thanks in advance,
Tom

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6 years 4 months ago #170877 by tommylight
Replied by tommylight on topic Spindle brake delay vs E-Stop
Using inverted spindle-on pin might have been easier and better, in my opinion.
Adding a timedelay when stopping the spindle and adding AND to e-stop out, so the brake will be delayed when stopping it normally and would engage immediately on E-stop.
Something like:
Code:
spin-on>invert>timedelay> ------------------------------------|and >brake estop>>>>>>>>>>>>>>>>

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6 years 4 months ago #170883 by alkabal
Replied by alkabal on topic Spindle brake delay vs E-Stop
I have do something similar with enable signal that work fine i think you can check and adapt for brake.

Br
Code:
# timedelay before disable enable output for ramp the brake loadrt timedelay names=timedelay.spindle-enable-soft-stop addf timedelay.spindle-enable-soft-stop servo-thread setp timedelay.spindle-enable-soft-stop.on-delay 0 setp timedelay.spindle-enable-soft-stop.off-delay 0.85 net spindle-enable <= spindle.0.on net spindle-enable => timedelay.spindle-enable-soft-stop.in net spindle-enable-soft-stop <= timedelay.spindle-enable-soft-stop.out net spindle-enable-soft-stop => pid.spindle.enable net spindle-enable-soft-stop => [HMOT](CARD0).7i83.0.0.analogena0

forum.linuxcnc.org/10-advanced-configura...le-soft-stop?start=0

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6 years 4 months ago #170915 by bbsr_5a
Replied by bbsr_5a on topic Spindle brake delay vs E-Stop
cand you use a simple ramp UP and Ramp down
linuxcnc.org/docs/html/examples/spindle....#_spindle_soft_start

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