Mesa 5i25 and 7i76 and encoder
11 Sep 2016 20:11 #80347
by finemeca
Replied by finemeca on topic Mesa 5i25 and 7i76 and encoder
OK thanks.
I check tomorrow
I check tomorrow
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16 Sep 2016 12:41 #80495
by finemeca
Replied by finemeca on topic Mesa 5i25 and 7i76 and encoder
Hello,
I redo my tests ....
With M3 s00: motion.spindle-at-speed true
With M3 s300: motion.spindle-at-speed false
An inversion problem?
What reverse signal ?
@pierre
I redo my tests ....
With M3 s00: motion.spindle-at-speed true
With M3 s300: motion.spindle-at-speed false
An inversion problem?
What reverse signal ?
@pierre
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16 Sep 2016 12:48 #80497
by jtc
Replied by jtc on topic Mesa 5i25 and 7i76 and encoder
I think that at 0 speed the spindle ate speed is always true...
see this example:
linuxcnc.org/docs/html/examples/spindle.html
see this example:
linuxcnc.org/docs/html/examples/spindle.html
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24 Sep 2016 19:15 #80866
by finemeca
Replied by finemeca on topic Mesa 5i25 and 7i76 and encoder
Hello,
I always have the problem?
An idea ?
I always have the problem?
An idea ?
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24 Sep 2016 20:00 #80867
by PCW
Replied by PCW on topic Mesa 5i25 and 7i76 and encoder
if spindle-at-speed is not true, it means spindle-vel-fb is not "near" spindle-vel-cmd-rps (within 200 RPM)
To debug, halmeter or watch both when you have 300 RPM selected, they should both be around 5 ( 5 RPS = 300 RPM )
This error suggests that either the spindle encoder is not working, is backwards, or is scaled wrong
or the spindle speed command path has an error (you dont get 300 RPM when you request it)
To debug, halmeter or watch both when you have 300 RPM selected, they should both be around 5 ( 5 RPS = 300 RPM )
This error suggests that either the spindle encoder is not working, is backwards, or is scaled wrong
or the spindle speed command path has an error (you dont get 300 RPM when you request it)
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25 Sep 2016 13:32 #80901
by finemeca
Replied by finemeca on topic Mesa 5i25 and 7i76 and encoder
Hello PCW
Here is a piece of my hall file :
My coder is 100 points per turn
Where is the scale of the encoder?
It's : setp near.0.scale 1.000000
Here is a piece of my hall file :
#*******************
# SPINDLE S
#*******************
setp pid.s.Pgain [SPINDLE_9]P
setp pid.s.Igain [SPINDLE_9]I
setp pid.s.Dgain [SPINDLE_9]D
setp pid.s.bias [SPINDLE_9]BIAS
setp pid.s.FF0 [SPINDLE_9]FF0
setp pid.s.FF1 [SPINDLE_9]FF1
setp pid.s.FF2 [SPINDLE_9]FF2
setp pid.s.deadband [SPINDLE_9]DEADBAND
setp pid.s.maxoutput [SPINDLE_9]MAX_OUTPUT
setp pid.s.error-previous-target true
net spindle-index-enable <=> pid.s.index-enable
net spindle-enable => pid.s.enable
net spindle-vel-cmd-rpm-abs => pid.s.command
net spindle-vel-fb-rpm-abs => pid.s.feedback
net spindle-output <= pid.s.output
# ---digital potentionmeter output signals/setup---
setp hm2_5i25.0.7i76.0.0.spinout-minlim [SPINDLE_9]OUTPUT_MIN_LIMIT
setp hm2_5i25.0.7i76.0.0.spinout-maxlim [SPINDLE_9]OUTPUT_MAX_LIMIT
setp hm2_5i25.0.7i76.0.0.spinout-scalemax [SPINDLE_9]OUTPUT_SCALE
net spindle-vel-cmd-rpm-abs => hm2_5i25.0.7i76.0.0.spinout
net spindle-enable => hm2_5i25.0.7i76.0.0.spinena
net spindle-ccw => hm2_5i25.0.7i76.0.0.spindir
# ---setup spindle control signals---
net spindle-vel-cmd-rps <= motion.spindle-speed-out-rps
net spindle-vel-cmd-rps-abs <= motion.spindle-speed-out-rps-abs
net spindle-vel-cmd-rpm <= motion.spindle-speed-out
net spindle-vel-cmd-rpm-abs <= motion.spindle-speed-out-abs
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-revs => motion.spindle-revs
net spindle-at-speed => motion.spindle-at-speed
net spindle-vel-fb-rps => motion.spindle-speed-in
net spindle-index-enable <=> motion.spindle-index-enable
# ---Setup spindle at speed signals---
sets spindle-at-speed true
# ---Setup spindle at speed signals---
net spindle-vel-cmd-rps => near.0.in1
net spindle-vel-fb => near.0.in2
net spindle-at-speed <= near.0.out
setp near.0.scale 1.000000
setp near.0.difference 3.333333
# Spindle encoder
# ----------------
# ---Encoder feedback signals/setup---
setp hm2_5i25.0.encoder.00.counter-mode 1
setp hm2_5i25.0.encoder.00.filter 1
setp hm2_5i25.0.encoder.00.index-invert 0
setp hm2_5i25.0.encoder.00.index-mask 0
setp hm2_5i25.0.encoder.00.index-mask-invert 0
setp hm2_5i25.0.encoder.00.scale 100
net spindle-revs <= hm2_5i25.0.encoder.00.position
net spindle-vel-fb <= hm2_5i25.0.encoder.00.velocity
net spindle-index-enable <=> hm2_5i25.0.encoder.00.index-enableMy coder is 100 points per turn
Where is the scale of the encoder?
It's : setp near.0.scale 1.000000
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25 Sep 2016 13:37 #80902
by PCW
With a 100 line quadrature encoder, the spindle encoder scaling should be 400
this is set in the ini file
Replied by PCW on topic Mesa 5i25 and 7i76 and encoder
is correct (the spindle velocity command and feedback are both in RPS)setp near.0.scale 1.000000
With a 100 line quadrature encoder, the spindle encoder scaling should be 400
this is set in the ini file
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25 Sep 2016 13:42 #80903
by finemeca
Replied by finemeca on topic Mesa 5i25 and 7i76 and encoder
ok this is my ini file :
today is set to OUTPUT_SCALE = 2500
For an encoder 100 points, I have to put what?
100 or 1000
#********************
# Spindle
#********************
[SPINDLE_9]
P = 0.0
I = 0.0
D = 0.0
FF0 = 1.0
FF1 = 0.0
FF2 = 0.0
BIAS = 0.0
DEADBAND = 0.0
MAX_OUTPUT = 2500.0
OUTPUT_SCALE = 2500
OUTPUT_MIN_LIMIT = 200
OUTPUT_MAX_LIMIT = 2500today is set to OUTPUT_SCALE = 2500
For an encoder 100 points, I have to put what?
100 or 1000
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25 Sep 2016 14:32 #80907
by PCW
Replied by PCW on topic Mesa 5i25 and 7i76 and encoder
output_scale must be set to max RPM (RPM at 10V to VFD)
input_scale must set to counts per turn (400 for a 100 line quadrature encoder)
input_scale must set to counts per turn (400 for a 100 line quadrature encoder)
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25 Sep 2016 18:14 - 25 Sep 2016 18:17 #80909
by finemeca
Replied by finemeca on topic Mesa 5i25 and 7i76 and encoder
Ok I just take my config.
Linuxcnc OK but it will not always.
For the drive, it is wired like this:
https://goo.gl/photos/Th81Ptx2LnNri4J37
The spindle drive is a DC motor.
On this type of engine there is a dynamo.
Linuxcnc OK but it will not always.
For the drive, it is wired like this:
https://goo.gl/photos/Th81Ptx2LnNri4J37
The spindle drive is a DC motor.
On this type of engine there is a dynamo.
Last edit: 25 Sep 2016 18:17 by finemeca.
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