Updated: 07.11.2026
In brief: Roller shutters move automatically via a timer, a sun sensor or a building control system. The easiest way is a radio motor: timer and sensors are paired like another transmitter. Cable motors need a control unit or receiver for this.
Options compared
| Solution | Used for | Suitable motor |
|---|---|---|
| Timer | up in the morning, down in the evening – also on holiday | Radio or cable motor |
| Sun sensor | Heat protection in summer | A-OK AM45 radio |
| Wind sensor | Awning retracts in a storm | A-OK AM45E radio |
| App / voice control | Smart home | Zigbee versions, e.g. AM45 battery solar |
| Building management | Commercial, many roller shutters | AM45 radio with RS485 or dry contact |
What to look out for
- Hinderniserkennung: In automatic operation nobody is watching. A motor that stops on resistance protects the roller shutter and plants on the windowsill.
- Frost protection: In winter the curtain can freeze. The AM45 radio detects this and stops.
- Intermediate position: For sun protection, half closed is often enough – this can be stored with electronic end positions.
Window actuators can also be automated – for example with rain and wind sensors for ventilation, see Rain sensor for windows.
Frequently asked questions
Can I automate an existing cable motor?
Yes, with a timer in the switch range or a radio receiver in front of the motor.
Does the roller shutter also move during a power cut?
No, except with battery-solar motors. Motors with manual override can be moved by hand.
Calculate the torque yourself: Roller shutter motor calculator. All guides on roller shutter, awning and external venetian blind motors: Sun protection guide.
Advice on the right motor
Send us the shaft diameter, curtain size and material – we will name the right A-OK motor. Phone 040 50694631 (Mon–Fri 8 am–5 pm) or via the Contact form. All motors at a glance: Sun protection motors.
Technically reviewed by Dietmar Heiken, Sales, Vent Systems HDI GmbH, Hamburg – around 20 years of industry experience. Questions? Phone +49 40 50694631 or info@ventsystems.de
Last updated: 07.11.2026
