thx for reply
in attachment you can find schematic of x, y and z axis..
kind regards pedro
The drawing do not show any switches, just motor encoder and scale.
There may be a reference switch on an input drawing. Ref X schalter for example.
With incremental scales there can be a switch, with absolute scales, usually not.
Increment scales would need a switch at the end of the axis travel.
With absolute scales the axis normally only needs to travel across several markers to know it's position.
Both cases a zero shift parameter to optimize the zero position.