Spindle speed shows true with axis

linuxcnc 2.7.15 using a PPort

I have fitted a 64 slot disc to a small lathe. the spindle runs at the correct speed in the display up to 4000 rpm as verified with a tachometer.

The spindle is controlled via a standalone pot and push buttons.

The speed display always shows green even at startup.. What am I missing for it to start red and when near the commanded speed turn green ? ie for use in a threading cycle.

Either you missed some HAL files to show us (like maybe custom_postgui.hal) or you don't have the near component connected. (I can't see any pin driving the signal spindle-at-speed)

Another point: the LED will be green when the spindle is off because it is at the commanded speed. To change that would require a custom component.

cmorley wrote:

Either you missed some HAL files to show us (like maybe custom_postgui.hal) or you don't have the near component connected. (I can't see any pin driving the signal spindle-at-speed)

Another point: the LED will be green when the spindle is off because it is at the commanded speed. To change that would require a custom component.

Thanks for the rapid response.

The custom_postgui.hal is in the above list of files.
You are of course correct in that I don't have a near component I will try and work that one out.

Yes I now see that the green led should be on when the spindle is off.