I can not configure limits and home

ok then invert the limit pin (as above ) and negate (make it negative) the search velocity.
Negating the search velocity should make it search in the opposite direction.

The BOB that I have is :

www.esteca55.com.ar/proye-interfazcnc12.html

Regards.

Oh and after I looked at your interface card a little closer, I think it is actually the stepper driver.
A break out board (BOB) is actually a board between the parallel port and the step driver.
It 'breaks out ' the connections from the parallel port so you can wire them to a step driver.
Some BOB 's have charge pumps included and are isolated.
Just to be clear

Ok I will try this evening because I am not at home.

Thanks.

I cal this a " INTERFACE" and it is like you said is a board between the parallel port and step driver. The switches are connected too in this board. It have too three relays for router,ect.

Hello Cmorley,

I did that you said me and the X and Y axis homing well. With the z axis still appear the error when I jogged. I do not know if that was the the better configuration but I had the home at the top of the travel with the maximum value. I changed the home to the bottom with minimum value. Now when I jog the error messages do not appear.

Thanks for your aid and patience:)

I said you " hasta Luego" see you soon because I have some problems with real time and RTPAI . Is better open a new thread?

Regards

well glad your figuring it out!

yes start a new thread for the realtime trouble