6i25 7i76 closed loop spindle
15 May 2020 13:28 #167840
by PCW
Replied by PCW on topic 6i25 7i76 closed loop spindle
encoder scale should be 8000
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15 May 2020 14:18 #167846
by tommylight
Replied by tommylight on topic 6i25 7i76 closed loop spindle
Max rpm of motor/encoder=4,000rpm and spindle=8000.
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15 May 2020 15:10 #167852
by Bob654321
Replied by Bob654321 on topic 6i25 7i76 closed loop spindle
If i look at hm2_5i25.0.encoder.00.count in hal meter and spin the spindle 1 revolution i get 2000.
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15 May 2020 15:17 #167854
by tommylight
Replied by tommylight on topic 6i25 7i76 closed loop spindle
Yup and the setting in ini was correct. The thing that threw PCW off was you always write 2:1, it should be 1:2 or one rev of motor 2 revs on the spindle.If i look at hm2_5i25.0.encoder.00.count in hal meter and spin the spindle 1 revolution i get 2000.
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15 May 2020 15:29 #167857
by Bob654321
Replied by Bob654321 on topic 6i25 7i76 closed loop spindle
I am sorry for the confusion I have caused. Thanks for clearing that up.
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15 May 2020 16:01 - 15 May 2020 16:02 #167860
by PCW
Replied by PCW on topic 6i25 7i76 closed loop spindle
Yes I was confused by the 1:2 2:1 thing
Still not sure whats going on
can you run the spindle open loop (only FF0=1) and halshow these values when
running at say 1/2 full speed (4000 RPM)
pid.s.command
pid.s.feedback
pid.s.output
Still not sure whats going on
can you run the spindle open loop (only FF0=1) and halshow these values when
running at say 1/2 full speed (4000 RPM)
pid.s.command
pid.s.feedback
pid.s.output
Last edit: 15 May 2020 16:02 by PCW.
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15 May 2020 16:12 #167862
by Bob654321
Replied by Bob654321 on topic 6i25 7i76 closed loop spindle
for m3s4000
pid.s.command=4000
pid.s.feedback=0
pid.s.output=4000
pid.s.command=4000
pid.s.feedback=0
pid.s.output=4000
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15 May 2020 16:17 - 15 May 2020 16:22 #167863
by PCW
Replied by PCW on topic 6i25 7i76 closed loop spindle
OK well that would explain the crazy behavior
next step would be to find out where the feedback speed gets lost
Ahh mis-matched signal names:
net spindle-fb-rpm-abs abs.spindle.out => lowpass.spindle.in
net spindle-vel-fb-rpm-abs => pid.s.feedback
next step would be to find out where the feedback speed gets lost
Ahh mis-matched signal names:
net spindle-fb-rpm-abs abs.spindle.out => lowpass.spindle.in
net spindle-vel-fb-rpm-abs => pid.s.feedback
Last edit: 15 May 2020 16:22 by PCW. Reason: add error
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15 May 2020 16:51 #167875
by Bob654321
Replied by Bob654321 on topic 6i25 7i76 closed loop spindle
How should I fix this? Being the newbie I am its not obvious to me what should be replaced, deleted, or added to my hal file.
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15 May 2020 16:53 #167877
by PCW
Replied by PCW on topic 6i25 7i76 closed loop spindle
replace
net spindle-vel-fb-rpm-abs => pid.s.feedback
with
net spindle-fb-rpm-abs => pid.s.feedback
net spindle-vel-fb-rpm-abs => pid.s.feedback
with
net spindle-fb-rpm-abs => pid.s.feedback
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