Hi,
'Why does mach not back up after contacting limit'? Home LED activates at contact.
Mach4 backs off a home switch, not a limit switch and the LED does not operate on contact.
The LED activates when the homing sequence for that axis is complete, that is the axis drives until the home switch operates, the axis stops and reverses
direction and backs off until the home switch deactivates, travels the required offset distance as assigned on the Mach Home/Soft limits page, the machine
co-ord for the axis is zeroed and finally the LED is turned on.
Confirm on Configure/Plugins/ESS/Pins Config that the input you are using for your string of home switches is assigned the correct port and pin with an appropriate
name like 'home'. On Configure/Plugins/ESS/Input Signals the Motor 0 Home, Motor 1 Home and Motor3 Home should all have the same signal 'home' assigned.
On Configure/Plugins/ESS/Homing page set the approach and offset speeds.
Craig