Spindle Control using Chinese BOB with blue relay (solved)
27 May 2020 19:31 - 28 May 2020 17:35 #169145
by Clive S
Using the standard Chinese BOB with the blue relay I have this working of sorts
Problem as the speed goes up the volts on the output 0-10v goes down .
How do I calibrate it for 2400 rpm spindle with vfd
What would be sane values for the scale, offset, pwm-freq etc.
I am imputing 22V + 5V with the ground connected
Problem as the speed goes up the volts on the output 0-10v goes down .
How do I calibrate it for 2400 rpm spindle with vfd
What would be sane values for the scale, offset, pwm-freq etc.
I am imputing 22V + 5V with the ground connected
#### Spindle stuff ###
net spindle-cmd-rpm => pwmgen.0.value
net spindle-on <= spindle.0.on => pwmgen.0.enable
net spindle-pwm <= pwmgen.0.pwm
setp pwmgen.0.pwm-freq 100
setp pwmgen.0.scale 1000
setp pwmgen.0.offset 0.1
setp pwmgen.0.dither-pwm true
net spindle-cmd-rpm <= spindle.0.speed-out
net spindle-cmd-rpm-abs <= spindle.0.speed-out-abs
net spindle-cmd-rps <= spindle.0.speed-out-rps
net spindle-cmd-rps-abs <= spindle.0.speed-out-rps-abs
net spindle-at-speed => spindle.0.at-speed
net spindle-cw <= spindle.0.forward
### Parport Pins ###
net spindle-pwm => parport.0.pin-01-out
net spindle-cw => parport.0.pin-14-out
net spindle-on => parport.0.pin-17-out
Last edit: 28 May 2020 17:35 by Clive S.
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- Mike_Eitel
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27 May 2020 20:11 #169149
by Mike_Eitel
Replied by Mike_Eitel on topic Spindle Control using Chinese BOB with blue relay
For your invertion:
I'm not sure but believe there is a way to invert the output. Try with negative scale
Second version is that you invert your output parport.0.pin-01-out via
See doc: parport.<p>.pin−<n>−out−invert (bit) Inverts an output pin.
I'm not sure but believe there is a way to invert the output. Try with negative scale
Second version is that you invert your output parport.0.pin-01-out via
See doc: parport.<p>.pin−<n>−out−invert (bit) Inverts an output pin.
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27 May 2020 20:28 #169151
by Clive S
Replied by Clive S on topic Spindle Control using Chinese BOB with blue relay
Thanks I have tried putting the scale -ve I will try changing the parport pin.
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28 May 2020 11:16 #169214
by Clive S
Ok I have now tried net spindle-pwm => parport.0.pin-01-out-invert 1 that throws an error (it is shown in the 2.7 docs but not 2.8 that I can see)
Please see the first post for my problem
Replied by Clive S on topic Spindle Control using Chinese BOB with blue relay
Thanks I have tried putting the scale -ve I will try changing the parport pin.
Ok I have now tried net spindle-pwm => parport.0.pin-01-out-invert 1 that throws an error (it is shown in the 2.7 docs but not 2.8 that I can see)
Please see the first post for my problem
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28 May 2020 12:27 #169223
by tommylight
Replied by tommylight on topic Spindle Control using Chinese BOB with blue relay
parallel port outputs are inverted using setp
so
setp parport.0.pin-01-out-invert 1
so
setp parport.0.pin-01-out-invert 1
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28 May 2020 13:52 - 28 May 2020 14:27 #169232
by Clive S
As above Tom that throws an error with pin does not exist it probably exists in 2.7 I am using 2.8
Edit My bad I was not using setp
Replied by Clive S on topic Spindle Control using Chinese BOB with blue relay
parallel port outputs are inverted using setp
so
setp parport.0.pin-01-out-invert 1
As above Tom that throws an error with pin does not exist it probably exists in 2.7 I am using 2.8
Edit My bad I was not using setp
Last edit: 28 May 2020 14:27 by Clive S. Reason: added text
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28 May 2020 14:02 #169233
by tommylight
Replied by tommylight on topic Spindle Control using Chinese BOB with blue relay
setp parport.0.pin-01-out-invert 1
Works for me on 2.9
It has to be above the pin 1 in hal
like so
setp parport.0.pin-02-out-invert 1
net xstep => parport.0.pin-02-out
Works for me on 2.9
It has to be above the pin 1 in hal
like so
setp parport.0.pin-02-out-invert 1
net xstep => parport.0.pin-02-out
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28 May 2020 14:26 #169235
by Clive S
sorry, sorry , sorry my bad I was trying spindle-pwm => parport.0.pin-01-out-invert 1
but I had to do setp parport.0.pin-01-out-invert 1 and missed it.
Now that get me the 0-10v going up as the speed change goes up
setp pwmgen.0.pwm-freq 100
setp pwmgen.0.scale 24000 setting this gets me the 24K on the vcp display
setp pwmgen.0.offset 0.1 What does this do
setp pwmgen.0.dither-pwm true
Replied by Clive S on topic Spindle Control using Chinese BOB with blue relay
setp parport.0.pin-01-out-invert 1
Works for me on 2.9
It has to be above the pin 1 in hal
like so
setp parport.0.pin-02-out-invert 1
net xstep => parport.0.pin-02-out
sorry, sorry , sorry my bad I was trying spindle-pwm => parport.0.pin-01-out-invert 1
but I had to do setp parport.0.pin-01-out-invert 1 and missed it.
Now that get me the 0-10v going up as the speed change goes up
setp pwmgen.0.pwm-freq 100
setp pwmgen.0.scale 24000 setting this gets me the 24K on the vcp display
setp pwmgen.0.offset 0.1 What does this do
setp pwmgen.0.dither-pwm true
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28 May 2020 15:56 #169237
by tommylight
Replied by tommylight on topic Spindle Control using Chinese BOB with blue relay
It just sets the output a bit higher than 0 , so when you start the spindle it does not start at 0RPM.setp pwmgen.0.offset 0.1 What does this do
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