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Lighting Control Catalogue
Automating energy efficiency
There are different possibilities to equip buildings so that they can be run in an energy-saving manner. Building automation, and
especially room automation, offers high energy saving potential.
FUNCTIONS FOR SAVING LIGHTING ENERGY
The functions for saving lighting energy avoid unnecessary use of artificial lighting and thus save electricity. They are based mainly
on the room conditions ”level of light in room” and ”presence”.
CONSTANT LIGHT CONTROL
Multi-function sensors determine the brightness of the room and whether it is occupied. They transmit their data to dimmer
actuators. If the room is not being used, the lighting stays off. If the room is being used, the dimmer actuators adjust the lighting to
a precisely defined level of brightness. The energy savings are especially high if the room is well supplied with daylight, or if its use
requires a high level of lighting. The savings potential is between 35 and 50 percent.
BRIGHTNESS-DEPENDENT LIGHTINGCONTROL
This function basically corresponds to constant light control. Since switchable light actuators are used instead of dimmer actuators,
the lighting level cannot be exactly set to the minimum level. For that reason, the energy savings potential is about 10 percent less
than for constant light control, and is no higher than 45 percent.
PRESENCE-DEPENDENT LIGHTINGCONTROL
This function is used to save lighting energy in areas with insufficient daylight. The saving effect is achieved having the lighting
controlled by presence/ movement detectors, which only turn on the lighting when the room is occupied. The saving potential
depends, therefore, primarily on the level of use.
SUNBLIND CONTROLLED BY THE POSITIONOF THE SUN
(SUN AUTOMATIC SYSTEM)
Controlling the sunblind according to the position of the sun (also known as the sun automatic system) ensures that the sunblind
automatically moves to a defined shield position when strong solar radiation is present. As soon as the intensity of the sunshine
lessens, it is moved back. The savings are attributable particularly to the fact that automatic control is more effective than manual
control. This reduces the need for artificial light. The savings potential is between 5 and 8 percent.