Optical Axis
The swivel position, in which the swivel module is in the straight-ahead direction of the vehicle is referred to as the optical axis. An angle of 0° is assigned to this position.
The optical axis is defined exactly as an angle with respect to the zero position sensor and as an angle with respect to the mechanical stop.
Consequently, the optical axis during swivel movement can be "normally" determined by way of the zero position sensor.
The differential angle with respect to the mechanical reference point is used in the case of fault.