Corridor - ABB Busch E-contact System Manual

Constant light control
The brightness of the light in a room is optimised to the respective use and kept constant. The
normal brightness fluctuations, e.g. due to the sunlight entering the room depending on the time
of day, are compensated as far as this is possible via the lighting and the spatial conditions.
The constant light control ensures, the same as the constant light switch, that the level of
brightness in the room does not drop below the desired level. However, the presence detector is
additionally able to dim the connected lamps in fine steps.
This enables a constant level to be attained due to the dimming of lights brighter and darker,
always in dependence of the natural light in the room. The constant light control remembers the
luminosity of the lamps used, while they are constantly measured. That is why the lamps used
later must also be used during commissioning of the presence detector with the constant light
control function. The artificial light component relative to daylight is also determined during
commissioning. Aside from the brightness, the constant light control also responds as before to
the presence of persons in the room.
Fig. 44: Constant light controller influences
[1] Natural light
[2] Brightness in the room
[3] Parametrized brightness-value threshold
[4] Artificial light
The set value for room brightness can be set using a potentiometer on the device, the IR
service remote control 6843 or via the ABB Watchdog Remote control app.
4.2.9

Corridor

Function
A corridor system should be controlled intelligently via a corridor Busch-Presence detector.
The lighting is controlled depending on movement and brightness.
In addition, the user would like to switch the lighting on and off manually via a switch.
Installation and settings
The corridor presence detectors must be installed and aligned in the direction of the hallway
using the arrows printed on the inside of the device. If this does not happen and the detectors
are rotated by 90 degrees, the correct function of the detector is not guaranteed.
System Manual 2CKA001473B9577
Information about planning and application
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