A method for operating an arrangement comprising an automatic movement machine which includes at least one movable element, the method comprising:
- a) moving the at least one movable element;
- and
- b) moving at least one multi-arm delimiting robot of a delimiting device which is controlled separately from and moves independently of the at least one movable element and which delimits a working region of the automatic movement machine, said movement of the at least one multi-arm delimiting robot being dependent on the movement of the at least one movable element, such that the at least one multi-arm delimiting robot prevents the at least one movable element from overshooting at least one fixed boundary within which a foreign object and the at least one movable element are simultaneously located;
- wherein a collision between the foreign object which is located in a working region of the automatic movement machine in which the at least one movable element moves and an entirety of the at least one movable element is prevented by the movement of the at least one multi-arm delimiting robot.