In areas where there is no need for lighting control or various types of logic, a simpler system can be used. This may be the case in various types of premises where people move about, but which are not used very often.

This relatively simple system entails a low investment cost, which contributes to a shorter payback time, especially if the alternative is that lighting is left on 24 hours a day.

Light sources

This application shows an example of light fittings that have 50 Hz coil ballasts or non-dimmable HF ballasts.

Control systems

The control of light sources with 50 Hz operation and non-dimmable HF ballasts is limited to controlling the supply side, i.e. setting up the detectors to control the contactors. This will lead to increased wear on ballasts and light sources. To minimise this wear, light fittings with coil ballasts should be fitted with electronic starters such as Aura Light “Strike” or an equivalent.

In new builds, renovation projects or in premises with frequent movement, it is very important to study the applications that describe “Dynamic lighting control”. See applications 2C, 2D and 2E!

Detector placement

Detector placement is critical to performance! The diagram shows the correct placement of the detector. In this room, measuring up to 40 x 40 m, a standard no. 15 lens is used. The choice of lens must be adapted to suit the layout and use of the premises, i.e. for stationary work a no. 15 lens should be used, see the lens library. The detector is placed so that it cannot see out through the doorway, to ensure that the lighting is not switched on when someone passes by outside when the door has been left open.
Placing the detector in the corner that is furthest from the door allows the detector to be installed higher up, which reduces the risk of tampering. When installed in this way the slightly down-tilted detection fields reach the door at the correct height.

Power supply

The EXE-2000 rectifier can power up to 25 installations of this type.
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