Spindel problems in Gmoccapy

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9 years 6 months ago #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.

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9 years 6 months ago #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

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9 years 6 months ago #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.

Attachment not found


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

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9 years 6 months ago #92228 by newbynobi
Replied by newbynobi on topic Spindel problems in Gmoccapy
Here is a simple spindle connection I use for a small machine:
Code:
########################################################## # 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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9 years 6 months ago #92229 by tecno
Replied by tecno on topic Spindel problems in Gmoccapy
Thank you Norbert,
will give this a try tomorrow.

mfg
Bengt

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9 years 6 months ago #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

newbynobi wrote: Here is a simple spindle connection I use for a small machine:

Code:
########################################################## # 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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9 years 6 months ago #92275 by newbynobi
Replied by newbynobi on topic Spindel problems in Gmoccapy
The changed code
Code:
########################################################## # 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-speed

In your postgui.hal file you need:
Code:
net spindle-rpm gmoccapy.spindle_feedback_bar net spindle-at-speed gmoccapy.spindle_at_speed_led


Norbert

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9 years 6 months ago #92276 by tecno
Replied by tecno on topic Spindel problems in Gmoccapy

Attachment not found



Line 43

net spindle-index => encoder.1.phase-Z => encoder.1.phase-A

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9 years 6 months ago #92277 by newbynobi
Replied by newbynobi on topic Spindel problems in Gmoccapy
Hallo bengt,

please use the changed code.
See my last post.

Norbert

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9 years 6 months ago #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.)

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