Blockage Detection

To protect the motor and the control units, the door module has blockage detection which switches the motor off after it reaches the upper or lower end position. The deactivation criteria is calculated from the motor starting current. When 75% over the normal motor starting current is reached the control unit switches off the motor.

Motor activation is also time monitored. The system stops activating the motors after 11 s for the rear and side-window roller blinds and 6 s for the quarter window roller sun blind.