Fenestral uses electric roller shutter motors with an obstacle detection mechanism to prevent damage from misuse. (They stop automatically when an obstacle is encountered in both directions, without the motors being overloaded or burning out). Roller shutters with a controlled torque – obstacle detection mechanism sense when they encounter an obstacle and stop the power supply to the motor to prevent damage (roller shutter motor with protection).
- Obstacle detection: The electric roller shutter motor automatically stops operating if it encounters resistance – an obstacle during ascent or descent (e.g., chairs – buckets – ice, roller shutter safety pins *essential) to prevent damage or injury. Therefore, obstacle detection is the result of the mechanism.
- Controlled torque: The controlled torque motor continuously monitors the force (torque) it exerts. If the torque increases sharply (obstacle during ascent) or decreases unexpectedly (obstacle during descent), the electronic system detects that something is wrong and interrupts the movement. The way ‘detection’ occurs is through special bands on the roller’s shafts. In this way, the roller ‘understands’ the obstacle. Therefore, controlled torque is the way the mechanism operates.
Motors with obstacle detection are essential if the roller shutters have safety bolts.
See the aluminum roller shutters where we use it.
