[DonRotolo]

Exactly correct: Wire the limit switch to close a contact between GROUND (black wire) and SIGNAL (White wire) on a DIGITAL Input. Depending on the mechanical configuration and whether the swicth is normally open (NO) or normally closed (NC) the digital imput will gr from 1 to 0 or 0 to 1 when the limit switch is actuated.

Remember, a limit switch is NOT a hard stop - overshooting the motion should not affect or damage the switch. If it will, your design is wrong.

Don