Help needed to get my 7i76E + 7i85S + 7i73 on my mill going.

Oh yes LOUD and clear. Also tested M3/M4 manually, fixed speed setting in VFD control panel and spindle runs OK.

Can you show us the spindle-related bits of your HAL?

forum.linuxcnc.org/media/kunena/attachme...imill_2017-07-30.hal

I don't see any sign of any connections to the hm2_5i25.0.7i76.0.0.spin* pins in that HAL file.

I think you need
This is completely ignoring the closed-loop spindle PID that is included in your HAL file because using that will require connecting the feedback and tuning the [SPINDLE]PID terms in the INI file. And that sounds like a second-stage of the process.

Thanks Andy, will give this a try and report back. Small steps to get going and refinement later on.

Well works only with MDI M3 Sxxx or M4 Sxxx but only at one fixed speed. No go from main screen!

latest HAL

After pressing the spindle-clockwise button you then need to press the Spindle-+ button to increase the speed, are you doing that?

If it only ever runs at full speed then that probably mans that you need to
(Or something similar to suit your actual spindle max speed).

I am guessing the parameter name, and you might need to change the associated limits too.

Nothing happens on clockwise or anticlockwise -+ buttons = dead!

Will try to set scalemax and see what happens.

# ---Setup spindle at speed signals---

sets spindle-at-speed true

Is that a misspelling? sets = setp maybe ?

sets = set signal
set = set pin

Use halshow to check motion.spindle-speed-out-rpm-abs and hm2_5i25.0.7i76.0.0.analogout when using the GUI buttons.

They ought to work, (even with the machine not homed)