7I76ED XYZ 0-10V Spindle

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20 Feb 2022 19:20 - 20 Feb 2022 19:30 #235412 by chili023
Hello everybody,I have a XYZ Mill with 4 Stepper and a 0-10V VFD.
I used pncconf to get my initial setup and all steppers work.
I used the desired spindle outputs and was able to get a voltage signal with
setp hm2_7i76e.0.7i76.0.0.spinout 10 or 100.
as a hal command.However the spindel output does not react to the commands from the gui.
I then tried to edit my custom.hal:
net spindle-enable hm2_7i76e.0.7i76.0.0.spinena 
net spindle-output hm2_7i76e.0.7i76.0.0.spinout
This tied hm2_7i76e.0.7i76.0.0.spinout to the exact value of spindle-output.The output wants to have 0-100 values, so I wanted to scale by editing my custom.hal with
setp hm2_7i76e.0.7i76.0.0.spinout-minlim [SPINDLE_0]OUTPUT_MIN_LIMIT 
setp hm2_7i76e.0.7i76.0.0.spinout-maxlim [SPINDLE_0]OUTPUT_MAX_LIMIT 
setp hm2_7i76e.0.7i76.0.0.spinout-scalemax [SPINDLE_0]OUTPUT_SCALE
and added to the maschine.ini
[SPINDLE_0]
P = 0
I = 0
D = 0
FF0 = 1
FF1 = 0
FF2 = 0
BIAS = 0
DEADBAND = 0
MAX_OUTPUT = 20000
OUTPUT_SCALE = 25000
OUTPUT_MAX_LIMIT = 100
OUTPUT_MIN_LIMIT = 5
Apparently this was not of success.Do I need to use a loadrt scale for the output?
Last edit: 20 Feb 2022 19:30 by chili023.

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20 Feb 2022 20:15 #235426 by PCW
Replied by PCW on topic 7I76ED XYZ 0-10V Spindle
With an output scale of 25000 and a output max limit of
100, the maximum output voltage would be 40 mV

Typically you would set the output max limit to the same
value of the output scale

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21 Feb 2022 07:18 #235444 by chili023
Replied by chili023 on topic 7I76ED XYZ 0-10V Spindle
Ok.
But why is spinout still going to 20000?
And the maximum value of spinout is 100.
So what do I miss?

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21 Feb 2022 15:00 #235466 by PCW
Replied by PCW on topic 7I76ED XYZ 0-10V Spindle
The output max limit limits the analog output to V*max_limit/output_scale
where V is the applied voltage to the analog output circuit (usually 10V)

That is, if you set max-scale to the RPM at 10V (25000 in your case)
setting the max limit to 100 would limit the maximum RPM to 100

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