OLD Lathe conversion to a CNC

I'm not sure I understand the issue.

There is no logic in the hal file to limit the spindle acceleration

No following error would be expected since the spindle is not an axis

I want the machine to stop if the spindle stops or the RPM slow down.
Also, when starting the spindle, there should be a set acceleration.

It looks like you have the needed components for this (limit2 and near)
but they are not connected.

That is you have the PID spindle speed  command coming directly
from the commanded spindle speed:net spindle-vel-cmd-rpm => pid.s.commandRather than having been fed through the limit2 component.

 Also the limit2 maxv (which limits the ramp rate) is not set

Similarly you do not have the near component connected
nor is the near components  scale or difference values set
 

A little update, the board for the control panel has arrived.

 



Everything fits well.  I temporarily put on the blue caps.  Someday I'll do better.
 

Nice work. What did you use to design and layout the panel PCB?

Thanks ! I used the free program kicad. I have no experience with boards, but the important thing is that everything works

 

 

 

I should have done the same on my last build.

Quick video of the first tests. I'm still learning how to work.

I made another video
Most likely I also have a problem with electrical noise. When I turn on the lubrication pump of the spindle, the screen flashes (the display is connected with an hdmi cable). Also in two weeks twice lost connection with 7i73

Find some of those doughnut shaped ferrite rings and wind the pup wires twice through it.
Plenty of those on old equipment.