Blind control with double limit switches

Blind control with double limit switches News of 10/18/19

The KNX S4-B12 DES and KNX S1R-B4-UP DES actuators are electronic control units for controlling motors with three limit switches, as used for blinds. Two separate down-commands are used to position the slats in operating position (limit switch down1) or closed position (down2). 

These actuators are particularly interesting for KNX projects in Switzerland, Luxembourg and Belgium: The KNX S4-B12 DES and the KNX S1R-B4-UP DES meet the country-specific requirements for shading as heat and glare protection. 

Item no. 70534
Actuator for 4 blind motor

The KNX S4-B12 DES actuator can be used to control four 230 V motors with 3 limit switches. The rail-mounted device has 4 pairs of keys for commissioning and an integrated status LEDs. 12 binary inputs allow the connection of push-buttons and auxiliary contacts.

Item no.70536 
Actuator for 1 blind motor

The KNX S1R-B4-UP DES controls a drive with 3 limit switches. It is stowed in a junction box or other cavity. The compact device has 4 digital inputs.

An internal shading automation with slat tracking is available for each blind output. Interlocks, priority settings and scene memories round off the setting options.

Would you like to know more details?

Then take a look at our online shop, where you will find further information and data sheets with connection diagrams.