Method for operating a detection system, and detection system

A method for operating a detection system for detecting a current position or current angle of rotation of a movable component, the detection system comprising at least three partially incremental motion sensors for redundant monitoring of the movable component, the method comprising for each motion sensor:

• a) evaluating an output signal of the respective motion sensor, which output signal has detected that the output signal falls below or reaches at least one lower limit value and exceeds or reaches an upper limit value, the lower limit value and the upper limit value demarcating a measuring segment detectable by the motion sensor;
• b) incrementing or decrementing an increment counter assigned to the respective motion sensor at least when the output signal has detected that the output signal falls below or reaches the lower limit value or that it exceeds or reaches the upper limit value;
• and
• c) retrieving and comparing the counter readings of the increment counters assigned to the motion sensors in order to detect an erroneous counter reading of at least one increment counter.