Parameter Window X: Control - ABB i-bus KNX Product Manual

®
ABB i-bus KNX
3.2.11 Parameter window
X: Control
© 2008 ABB STOTZ-KONTAKT GmbH
Commissioning
In this parameter window the settings for the lighting control are undertaken.
The parameter window X: Control is visible, if in the parameter window
the additional function Light control is parameterised for an
X: General
output. As it is a default setting here, this parameter page always remains
visible in the basic settings.
With the additional Light Control function a constant lighting control is
possible with any KNX lighting components. In the simplest case they can be
1-10 V devices which are connected to the output of the LR/S x.16.1. Via the
master/slave function additional luminaries can be integrated into the lighting
control of the LR/S, e.g. DALI luminaries via an ABB i-bus
DG/S or other 1-10 V luminaries via the ABB i-bus
SD/S. Even the integration of the ABB i-bus
possible. In this way highly flexible and energy efficient KNX lighting systems
can be integrated into the intelligent installation systems.
How does the light control function?
Using one or more Light Sensors LF/U2.1, the brightness and
luminance of the surfaces in the detection range can be detected by
the Light Sensor. The control factor (actual value) results from these
brightness values. Dependent on this control factor (actual value) and
the setpoint value, the Light Controller will calculate a brightness
value (control value) for the illumination which will keep the brightness
at a fairly constant level. The setpoint value can be adjusted in a
semiautomatic calibration (commissioning routine) of the control
circuit.
For further information see:
Rooms are lit up differently by the incidental daylight and the artificial
lighting of the lamps. Not all surfaces in the rooms, e.g. walls, floor,
and furniture reflect the light which falls on them in the same manner.
Accordingly, even though there is an exactly calibrated constant
lighting control in daily operation, deviations to the set target value
may occur. These deviations may be up to +/- 100lx should the
current ambient conditions in the room, and accordingly the reflection
properties of the surfaces (paper, persons, reorganized or new
®
®
Switch/Dim Actuators
®
Universal Dimmer UD/S is
Constant lighting control
DALI Gateway
59