limit3 component question
- robertspark
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03 Jun 2022 10:29 #244496
by robertspark
limit3 component question was created by robertspark
Anyone using / used the limit3 component receintly?
Application: router speed ramping
LinuxCNC 2.8.2-11.g6a3d0a434
Issue: basically I can't seem to get an output from the component output pin
I have tried changing limit3.load from FALSE to TRUE... no change in output.
I can confirm that I have an input (tried 5000, 10000 and 30000), and no change on the output.
Yes I am probably being a muppet and not seeing the obvious.... pointing out the error of my ways would be most helpful, thanks.
Oh, using Hal Meter to inspect the I/O's state
just trying to smooth out my spindle (router) speed change, as it had soft start and is now running with a Super-PID
[SPINDLE_0]OUTPUT_MAX_LIMIT = 30000
[SPINDLE_0]OUTPUT_MIN_LIMIT = 5000
I'm going to give limit2 a shot in the meantime.... maybe the error of my ways will become apparent
Note: I have flipped LOAD from False to True and no change on output (I thought this was a pass through function)
Minor thing....
Noticed the documentation (2.8 / stable or master) did not list the pin
limit3.time FLOAT OUT
linuxcnc.org/docs/stable/html/man/man9/limit3.9.html
Application: router speed ramping
LinuxCNC 2.8.2-11.g6a3d0a434
Issue: basically I can't seem to get an output from the component output pin
I have tried changing limit3.load from FALSE to TRUE... no change in output.
I can confirm that I have an input (tried 5000, 10000 and 30000), and no change on the output.
Yes I am probably being a muppet and not seeing the obvious.... pointing out the error of my ways would be most helpful, thanks.
Oh, using Hal Meter to inspect the I/O's state
just trying to smooth out my spindle (router) speed change, as it had soft start and is now running with a Super-PID
#SINDLE RAMP CONTROL
loadrt limit3 names=spindleramp
# settings
setp spindleramp.maxv 2
setp spindleramp.maxa 10
setp spindleramp.max [SPINDLE_0]OUTPUT_MAX_LIMIT
setp spindleramp.min [SPINDLE_0]OUTPUT_MIN_LIMIT
setp spindleramp.load 1
# input & output
net spindle-vel-cmd-rpm-abs => spindleramp.in
net spindleramped <= spindleramp.out[SPINDLE_0]OUTPUT_MAX_LIMIT = 30000
[SPINDLE_0]OUTPUT_MIN_LIMIT = 5000
I'm going to give limit2 a shot in the meantime.... maybe the error of my ways will become apparent
Note: I have flipped LOAD from False to True and no change on output (I thought this was a pass through function)
Minor thing....
Noticed the documentation (2.8 / stable or master) did not list the pin
limit3.time FLOAT OUT
linuxcnc.org/docs/stable/html/man/man9/limit3.9.html
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- phillc54
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03 Jun 2022 10:45 #244498
by phillc54
Replied by phillc54 on topic limit3 component question
I don't see an addf to a thread.
The following user(s) said Thank You: robertspark
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- robertspark
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03 Jun 2022 10:55 #244503
by robertspark
Replied by robertspark on topic limit3 component question
..... head slap moment !!!!
I figured that out after trying limit 2 and limit1......
addf spindleramp servo-thread
hey ho....
I figured that out after trying limit 2 and limit1......
addf spindleramp servo-thread
hey ho....
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- robertspark
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03 Jun 2022 11:01 - 03 Jun 2022 11:22 #244506
by robertspark
Replied by robertspark on topic limit3 component question
Maybe the below will help someone out in the future.....
choose ONE ( limit3 , limit2 or limit1 ) and modify to your needs
choose ONE ( limit3 , limit2 or limit1 ) and modify to your needs
#SPINDLE RAMP CONTROL LIMIT 3
loadrt limit3 names=spindleramp
addf spindleramp servo-thread
# settings
setp spindleramp.maxv 6000
setp spindleramp.maxa 6000
setp spindleramp.max [SPINDLE_0]OUTPUT_MAX_LIMIT
setp spindleramp.min [SPINDLE_0]OUTPUT_MIN_LIMIT
#setp spindleramp.load 1
setp spindleramp.enable 1
# input & output
net spindle-vel-cmd-rpm-abs => spindleramp.in
net spindleramped <= spindleramp.out
#SPINDLE RAMP CONTROL LIMIT 2
#loadrt limit2 names=spindleramp
#addf spindleramp servo-thread
# settings
#setp spindleramp.maxv 1000
#setp spindleramp.max [SPINDLE_0]OUTPUT_MAX_LIMIT
#setp spindleramp.min [SPINDLE_0]OUTPUT_MIN_LIMIT
#setp spindleramp.load 0
# input & output
#net spindle-vel-cmd-rpm-abs => spindleramp.in
#net spindleramped <= spindleramp.out
#SPINDLE RAMP CONTROL LIMIT 1
#loadrt limit1 names=spindleramp
#addf spindleramp servo-thread
# settings
#setp spindleramp.max [SPINDLE_0]OUTPUT_MAX_LIMIT
#setp spindleramp.min [SPINDLE_0]OUTPUT_MIN_LIMIT
# input & output
#net spindle-vel-cmd-rpm-abs => spindleramp.in
#net spindleramped <= spindleramp.out
Last edit: 03 Jun 2022 11:22 by robertspark.
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- phillc54
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03 Jun 2022 11:11 #244508
by phillc54
Replied by phillc54 on topic limit3 component question
Haha, I have those all the time...... head slap moment !!!!
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- robertspark
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03 Jun 2022 14:05 #244521
by robertspark
Replied by robertspark on topic limit3 component question
bit of an adjustment to the above / earlier posted code.
Added the mux2 component to act as a signal switch which prevents the minimum output of the limit3 component being sent to the PWM signal output pin.
Added the mux2 component to act as a signal switch which prevents the minimum output of the limit3 component being sent to the PWM signal output pin.
#SPINDLE RAMP CONTROL LIMIT 3
loadrt limit3 names=spindleramp
loadrt mux2 names=spindlesw
addf spindleramp servo-thread
addf spindlesw servo-thread
# settings
setp spindleramp.maxv 6000
setp spindleramp.maxa 6000
setp spindleramp.max [SPINDLE_0]OUTPUT_MAX_LIMIT
setp spindleramp.min [SPINDLE_0]OUTPUT_MIN_LIMIT
setp spindlesw.in0 0
# input & output
net spindle-vel-cmd-rpm-abs => spindleramp.in
net spindle-vel-cmd-rpm-abs-sw <= spindleramp.out
net spindle-cw => spindlesw.sel
net spindle-vel-cmd-rpm-abs-sw => spindlesw.in1
net spindleramped <= spindlesw.outPlease Log in or Create an account to join the conversation.
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