Classroom with blackboard lighting

Dimmable daylight control in two zones, blackboard lighting in one secondary zone

Principle for classroom with blackboard lighting. Dimmable main lighting in two daylight zones + On/Off blackboard lighting. Main lighting and board lighting can be overridden either via a DALI-2 push button interface or a 230 V push-button.

Functionalities

The installation has two zones for daylight control and one On/Off zone for board lighting. The luminaires in the daylight zones are equipped with DALI drivers designed for dimming. Luminaires for blackboard lighting are equipped with standard no dimmable drivers and are controlled by the detectors internal relay. The light can either turn on automatically at presence or by actively pressing the 230 V push-button or via DALI-2 push button interface.

The light will automatically switch off after a predefined period of time after the room has been left. It is possible to override the daylight control either via push-button or DALI-2 push button interface. The solution enables wireless communication between the detector and wireless battery-free push-buttons, thus wiring to push-buttons in e.g. glass walls or partition walls is not necessary.Wireless communication between the detector and push-button is also possible.

Change of the colour temperature can be added to dimmable zones, manually change, presets or automatically (HCL), DALI DT8 luminaries are required