Blocking Protection

Blocking protection is based on monitoring of the Hall-sensor signals. With each signal change of the active sensor, a time measurement is restarted which triggers the blocking reaction when a defined period of time is exceeded (exception: emergency close).

If blocking protection takes place in an adjustment range protected by closing-force limitation, the window travels back when the closing-force limitation is exceeded. Outside this range, the window travels back for 1/4 turn in order to relieve the tension on the mechanical system.