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Zero Position Sensor

The zero position of the swivel module with respect to the zero position sensor is detected by a 1/0 edge when swivelling from the direction of the off position in the direction of the optical axis. The swivel module is repeatedly calibrated during operation based on this "soft" reference point.

Fig 1: Zero Position Sensor Detection Range
G06925132Courtesy of BMW OF NORTH AMERICA, INC.
COMPONENTS DESCRIPTION CHART

Index Explanation
1 Mechanical stop, minimum
2 Electrical stop
3 OFF position
4 Position of zero position sensor
5 Position of optical axis = 0
6 Electrical stop, maximum
7 Mechanical stop
8 Swivel direction
9 Reference run from left

Driving the stepper motor in positive direction of the swivel module corresponds to swivel movement to the right.