Spindel problems in Gmoccapy

tecno
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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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rodw
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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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tecno
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9 years 6 months ago - 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.

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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Last edit: 9 years 6 months ago by tecno.

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newbynobi
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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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tecno
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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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tecno
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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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