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

4.2.4

Classroom - Constant light control in semi-automatic mode

Function
In a school, the lighting of a classroom is to be controlled via Busch-Presence detector. Three
Busch-Presence detector are to be installed in parallel to detect the entire area. The lighting
control must be enabled with a brief press of the extension unit push-button (semi-automatic
mode).
The illumination of the school blackboard is switched via a push-button. It is to be switched on
and off independent of the status only when the push-button is pressed. The brightness-
dependent control is made via the DALI interface.
Constant light control:
– Daylight-dependent control (constant light control) provides greater comfort.
– The lighting is generally a mixture of daylight and artificial light. With this type of lighting
control, the brightness is maintained at a constant level by dimming the share of artificial
light. If daylight alone is sufficient, the artificial light/lighting is switched off.
Lighting control
Fig. 29: Application example: classroom with blackboard light and daylight-dependent control
The lighting must consist of DALI lamps.
In case of daylight-dependent control, manual intervention via the app is possible.
With the NO switch, the lighting can be switched on and off.
Through the coupling of the extension unit, the lighting can be dimmed up and down in a
targeted manner in connection with a 2gang push-button.
System Manual 2CKA001473B9577
Information about planning and application
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