GF77.20-P-3000TX Tilting/Sliding Roof Lock-Up Recognition, Function

GF77.20-P-3000TX Tilting/Sliding Roof Lock-Up Recognition, Function
- with CODE (414) Glass electric tilting/sliding roof



Function
The overhead control panel control module (N70) receivers voltage pulses from Hall sensor 1, SR (M12b1) and Hall sensor 2, SR (M12b2) located on the SR motor (M12m1). They are counted and evaluated for position measurement.
When the Hall sensor pulses are not received for longer than 0.2 s, even though the SR motor is activated, the SR motor is switched off.

Moreover, a mechanical temperature switch on the SR motor protects it against overload.In the event of failure of the Hall sensors, the tilting/sliding roof can only be closed in increments of 0.2 ms with the roof switch (N70s1) or with the emergency crank.