HURCO KMB-1 Control Update

Its very weird, but I can travel over all the limit switches in X and Y and LNCN errors as I expect with on limit switch error, except for Z minus, where I get a joint2follower error.   By setting up to home at the Z max end, then I've run the Linuxcnc outline program, so the machine is otherwise working.
I've tuned the axis to as fine a limit as I can get, I've been through the hal and ini files but must be missing something.
Could I ask someone else to have a look in the files attached and see where I have made the mistake I must have. Or perhaps there is some other solution?

Thank you.
 

Nothing is tied to max-z, everything is tied to min-z, so the only active pin is min-z input, and from your description even that is not set properly as you are getting joint 2 following error form the motor bottoming out.
Can you explain again why such hoops for home and limits on Z?

Not really.
I started the whole config with mesact, then as the switches are 5volt, needed to use encoder channels, the index is inverted so have to not the signals, and then moved to pncconf. Lastly from one of the notes above copied what I thought was required homing code.
So the hoops, are just a mess I've got myself into.
If nothing is tied to max-z then even more mystified how its possible to home on it.
I guess that proves those three lines of code are superfluous.

Maybe as the Z axis, negative end is actually, when extended, and I my head I'm calling that max-z, in fact that end is really min-z, so it is connected?

What switches does the machine have on Z?

Thanks Tommy, Don't actually know the technology, but all the limit switches on the machine are the same, and magnetic.

Signal goes to an optical isolator and the output from that to the 7i77.

Have only just now noticed that the Upper switch is labelled +OT.. A likely start of my confusion.!

Now that I've actually managed to run the machine and draw that famous Linuxcnc outline with it on a piece of paper, I fear it less and know better what the configurator questions are really aimed at, I'm going to create a new build from scratch and check this out all over.