Safe plane is a horizontal plane, located on such level, so that any tool transitions above that plane would not lead to tool collision with the detail being machined or any machining equipment. All horizontal transitions on the rapid feed are performed in safe plane.
The safe plane level should be set to be higher than the top machining level and than the workpiece or machining equipment.
The safe plane level can be assigned in the <Parameters> page.
Upper and Lower machining levels