Classroom - Constant Light Control In Automatic Mode - ABB Busch E-contact System Manual

4.2.3

Classroom - Constant light control in automatic mode

Function
In a school, the lighting of a classroom with DALI lamps is to be controlled efficiently via the
Busch-Presence detector. Three Busch-Presence detector are to be installed in parallel to
detect the entire area.
The illumination of the blackboard is to be integrated into the control. It is to be switched on and
off independently of the status of the lighting. If manual deactivation is forgotten, it is to be
switched off automatically with the other lighting.
Installation and settings
Fig. 27: Application example: classroom with blackboard light
For optimum detection, the installation position of the Busch-Presence detector should be
selected above the pupils' desks.
The switch-off delay for such applications is to be set at approx. 10 minutes.
The Busch-Presence detector have an almost circular detection range. The areas must overlap
slightly to ensure that there are no gaps in the detection.
The load is connected to the main unit. The main unit is responsible for monitoring the
brightness and the switch-off delay. The extension units have the task of routing detected
movement and the measured brightness value to the main unit.
System Manual 2CKA001473B9577
Information about planning and application
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