1. Jörn Kruse / STO-G /
ABB STOTZ-KONTAKT GmbH ABB i-bus® KNX Brightness Sensor Interface HS/S 4.2.1
© STO/G - Slide 1

2. Brightness Sensor Interface HS/S 4.2.1 Overview
Application
The Brightness Sensor Interface is used in combination with the Outside Brightness Sensor LFO/A 1.1. It measures the brightness of the daylight. It can also be used as a twilight sensor.
replaced by
ABB
HS/S 3.1
HS/S 4.2.1
STO/G – Slide 2

3. Brightness Sensor Interface HS/S 4.2.1 Functions and Benefits
Very wide sensor range: 1 lx to lx, can thus also be used as a twilight sensor
Up to 3 Outside Brightness Sensors LFO/A can be connected to the HS/S One LFO/A is included with the HS/S
The Outside Brightess Sensors can be evaluated separately or in common (maximum value).
Manual operation with backlighted display and text oriented user menu (6 languages: DE, EN, FR, ES, IT, NL)
Extensive evaluation functions of the sensor values: threshold channels for switching - 4 universal threshold channels - 6 universal logic channels (AND, OR, XOR)
LFO/A 1.1
ABB
HS/S 4.2.1
STO/G – Slide 3

4. Brightness Sensor Interface HS/S 4.2.1 Hardware Design
Connection of 3x Outside Brightness Sensor LFO/A
Width: 3 modules
Worldwide operating voltage range: V, 50/60 Hz
New: Manual operation on the device (e.g. for setting the threshold values)
Up to 3 LFO/A can be connected (addressable)
Note: Mains voltage is necessary (for the supply of the LFO/A’s)
ABB
Backlighted Display
Mains voltage
STO/G – Slide 4

5. Brightness Sensor Interface HS/S 4. 2
Brightness Sensor Interface HS/S Connection of the Outside Brightness Sensors
max. 50m
DCF
LFO/A 1.1
FW/S
HS/S
Time Switch FW/S and Brightness Sensor HS/S can use
one sensor line together.
STO/G – Slide 5

6. Brightness Sensor Interface HS/S 4. 2
Brightness Sensor Interface HS/S Summary: Replacement by the New Device
Consider the width of the device (3 modules)
New Outside Brightness Sensor necessary (included with the device).
Mains voltage supply necessary
STO/G – Slide 6

7. STO/G – Slide 7