Hi NeoTo,
Thanks for your answer.
I had not selected the pin 0 on 3 axes in Pokeys configuration software, homing working properly but with a very basic speed.
I always have trouble with probing, the switch probe is well recognized in Mach3. Digitalize the led shows the manual activity on the switch probe, but the command GCODE G31 Z-50 has no effect on the Z axis, the axis does not move.
Is there another command to perform the probing?