Spindel problems in Gmoccapy
27 Apr 2017 12:48 #92200
by tecno
Spindel problems in Gmoccapy was created by tecno
Have now my lathe running OK in Axis.
In Gmoccapy I can not start the spindle, works OK in Axis.
Obviously I have something set wrong but what can that be, spindle starts at 200rpm in Axis.
In Gmoccapy I can not start the spindle, works OK in Axis.
Obviously I have something set wrong but what can that be, spindle starts at 200rpm in Axis.
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27 Apr 2017 13:27 #92207
by rodw
Replied by rodw on topic Spindel problems in Gmoccapy
I don't have a spindle so can't help much. I think there are some .ini file settings that need to be set up as I see some warnings in the terminal window when I start Linuxcnc from the command line. Have a read here:
linuxcnc.org/docs/html/gui/gmoccapy.html#_basic_configuration
linuxcnc.org/docs/html/gui/gmoccapy.html#_basic_configuration
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27 Apr 2017 15:46 - 27 Apr 2017 16:46 #92222
by tecno
Replied by tecno on topic Spindel problems in Gmoccapy
Found the problem that is the slider was locked far left and only restart solved this so now I can command the spindle.
slider far left was locked
But, still no visual rpm display. Copied TURBO and his solution
So how can I get some rpm feedback having only INDEX pulse on spindle shaft.
Cheers
Bengt
slider far left was locked
But, still no visual rpm display. Copied TURBO and his solution
I mean i just got the gmoccapy spindle meter and led working.
In the ini hal section I added
# Single file that is executed after the GUI has started.
POSTGUI_HALFILE = custom_postgui.hal
in custom_postgui.hal
net spindle-fb-rpm-abs-filtered => gmoccapy.spindle_feedback_bar
net spindle-at-speed => gmoccapy.spindle_at_speed_led
So how can I get some rpm feedback having only INDEX pulse on spindle shaft.
Cheers
Bengt
Last edit: 27 Apr 2017 16:46 by tecno.
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27 Apr 2017 18:09 #92228
by newbynobi
Replied by newbynobi on topic Spindel problems in Gmoccapy
Here is a simple spindle connection I use for a small machine:
After that spindle-rpm must be connected in postgui.hal to gmoccapy.spindle_feedback_bar
May be you need to pass the signal through an ABS to get positive values.
Hope that helps.
Norbert
##########################################################
# Spindeldrehzahl messen / mesurement spindle revolution #
##########################################################
loadrt encoder num_chan=1
addf encoder.update-counters base-thread
addf encoder.capture-position servo-thread
setp encoder.1.position-scale 1 # Anzahl der Impulse je Umdrehung
setp encoder.1.counter-mode 1 # Wenn 1 gesetzt, wird B-Signal ignoriert
# disable 4 times encoder, otherwise each klick will ingreas jogwheel-count by 4 instead of 1
# 4-fach-Auswertung vom Encoder ausschalten, sonst wird jogwheel-count bei jedem Klick um 4 statt um 1 erhoeht
setp encoder.0.x4-mode FALSE
loadrt scale count=1 # Wird gebraucht, um U/Sekunde in U/min umzurechnen
addf scale.0 servo-thread
setp scale.0.gain 60 # Ausgang = 60 x Eingang
net spindle_index parport.1.pin-12-in => encoder.1.phase-A => encoder.1.phase-Z
net spindle-index-enable motion.spindle-index-enable <=> encoder.1.index-enable
net spindle-rps encoder.1.velocity => scale.0.in
net spindle-rpm scale.0.out
# Zum Erkennen ob Geschwindigkeit erreicht wurde
# For at Speed detection
loadrt near
addf near.0 servo-thread
# Stellt fest ob zwei Werte in etwa gleich sind
# Wahr wenn, in1/scale <= in2 <= in1*scale
# oder wenn |in1-in2| <= difference
# prooves if two values are roughly the same
# true if in1/scale <= in2 <= in1*scale
# OR |in1-in2| <= difference
setp near.0.scale 1.2
setp near.0.difference 10
net spindle-cmd => near.0.in1
# net spindle-revs motion.spindle-revs => near.0.in1
net spindle-rpm => near.0.in2
net spindle-at-speed near.0.out => motion.spindle-at-speedAfter that spindle-rpm must be connected in postgui.hal to gmoccapy.spindle_feedback_bar
May be you need to pass the signal through an ABS to get positive values.
Hope that helps.
Norbert
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27 Apr 2017 18:25 #92229
by tecno
Replied by tecno on topic Spindel problems in Gmoccapy
Thank you Norbert,
will give this a try tomorrow.
mfg
Bengt
will give this a try tomorrow.
mfg
Bengt
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28 Apr 2017 10:21 #92253
by tecno
Replied by tecno on topic Spindel problems in Gmoccapy
Can somebody clarify the code from Norbert. I have only 1 par port = 0 and only index pulse on pin 10
What lines should be edited to suit above as I get nowhere with the code as-is.
Cheers
bengt
What lines should be edited to suit above as I get nowhere with the code as-is.
Cheers
bengt
Here is a simple spindle connection I use for a small machine:
########################################################## # Spindeldrehzahl messen / mesurement spindle revolution # ########################################################## loadrt encoder num_chan=1 addf encoder.update-counters base-thread addf encoder.capture-position servo-thread setp encoder.1.position-scale 1 # Anzahl der Impulse je Umdrehung setp encoder.1.counter-mode 1 # Wenn 1 gesetzt, wird B-Signal ignoriert # disable 4 times encoder, otherwise each klick will ingreas jogwheel-count by 4 instead of 1 # 4-fach-Auswertung vom Encoder ausschalten, sonst wird jogwheel-count bei jedem Klick um 4 statt um 1 erhoeht setp encoder.0.x4-mode FALSE loadrt scale count=1 # Wird gebraucht, um U/Sekunde in U/min umzurechnen addf scale.0 servo-thread setp scale.0.gain 60 # Ausgang = 60 x Eingang net spindle_index parport.1.pin-12-in => encoder.1.phase-A => encoder.1.phase-Z net spindle-index-enable motion.spindle-index-enable <=> encoder.1.index-enable net spindle-rps encoder.1.velocity => scale.0.in net spindle-rpm scale.0.out # Zum Erkennen ob Geschwindigkeit erreicht wurde # For at Speed detection loadrt near addf near.0 servo-thread # Stellt fest ob zwei Werte in etwa gleich sind # Wahr wenn, in1/scale <= in2 <= in1*scale # oder wenn |in1-in2| <= difference # prooves if two values are roughly the same # true if in1/scale <= in2 <= in1*scale # OR |in1-in2| <= difference setp near.0.scale 1.2 setp near.0.difference 10 net spindle-cmd => near.0.in1 # net spindle-revs motion.spindle-revs => near.0.in1 net spindle-rpm => near.0.in2 net spindle-at-speed near.0.out => motion.spindle-at-speed
After that spindle-rpm must be connected in postgui.hal to gmoccapy.spindle_feedback_bar
May be you need to pass the signal through an ABS to get positive values.
Hope that helps.
Norbert
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28 Apr 2017 14:43 - 28 Apr 2017 14:51 #92275
by newbynobi
Replied by newbynobi on topic Spindel problems in Gmoccapy
The changed code
In your postgui.hal file you need:
Norbert
##########################################################
# Spindeldrehzahl messen / mesurement spindle revolution #
##########################################################
loadrt encoder num_chan=1
addf encoder.update-counters servo-thread
addf encoder.capture-position servo-thread
setp encoder.0.position-scale 1 # Anzahl der Impulse je Umdrehung
setp encoder.0.counter-mode 1 # Wenn 1 gesetzt, wird B-Signal ignoriert
# disable 4 times encoder, otherwise each klick will ingreas jogwheel-count by 4 instead of 1
# 4-fach-Auswertung vom Encoder ausschalten, sonst wird jogwheel-count bei jedem Klick um 4 statt um 1 erhoeht
setp encoder.0.x4-mode FALSE
loadrt scale count=1 # Wird gebraucht, um U/Sekunde in U/min umzurechnen
addf scale.0 servo-thread
setp scale.0.gain 60 # Ausgang = 60 x Eingang
net spindle_index parport.0.pin-10-in => encoder.0.phase-A => encoder.0.phase-Z
net spindle-index-enable motion.spindle-index-enable <=> encoder.0.index-enable
net spindle-rps encoder.0.velocity => scale.0.in
net spindle-rpm scale.0.out
# Zum Erkennen ob Geschwindigkeit erreicht wurde
# For at Speed detection
loadrt near
addf near.0 servo-thread
# Stellt fest ob zwei Werte in etwa gleich sind
# Wahr wenn, in1/scale <= in2 <= in1*scale
# oder wenn |in1-in2| <= difference
# prooves if two values are roughly the same
# true if in1/scale <= in2 <= in1*scale
# OR |in1-in2| <= difference
setp near.0.scale 1.2
setp near.0.difference 10
net spindle-cmd => near.0.in1
net spindle-rpm => near.0.in2
net spindle-at-speed near.0.out => motion.spindle-at-speedIn your postgui.hal file you need:
net spindle-rpm gmoccapy.spindle_feedback_bar
net spindle-at-speed gmoccapy.spindle_at_speed_ledNorbert
Last edit: 28 Apr 2017 14:51 by newbynobi.
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28 Apr 2017 14:56 - 28 Apr 2017 14:59 #92276
by tecno
Line 43
net spindle-index => encoder.1.phase-Z => encoder.1.phase-A
Replied by tecno on topic Spindel problems in Gmoccapy
Line 43
net spindle-index => encoder.1.phase-Z => encoder.1.phase-A
Last edit: 28 Apr 2017 14:59 by tecno.
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28 Apr 2017 15:16 #92277
by newbynobi
Replied by newbynobi on topic Spindel problems in Gmoccapy
Hallo bengt,
please use the changed code.
See my last post.
Norbert
please use the changed code.
See my last post.
Norbert
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- Todd Zuercher
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28 Apr 2017 15:19 - 28 Apr 2017 15:22 #92278
by Todd Zuercher
Replied by Todd Zuercher on topic Spindel problems in Gmoccapy
I believe you only have one encoder so the pin names should be:
net spindle-index => encoder.0.phase-Z => encoder.0.phase-A
(There were also other places where encoder.1 should be changed to encoder.0, but Norbert corrected them while I was typing.)
net spindle-index => encoder.0.phase-Z => encoder.0.phase-A
(There were also other places where encoder.1 should be changed to encoder.0, but Norbert corrected them while I was typing.)
Last edit: 28 Apr 2017 15:22 by Todd Zuercher.
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