ABB i-bus KNX Product Manual page 95

®
ABB i-bus KNX
© 2008 ABB STOTZ-KONTAKT GmbH
Commissioning
No. Function
26, 51,
Calibration lighting
1)
76, 101
This object is enabled if in parameter window
function, the option Light control is selected.
Using this object the artificial lighting calibration for output X is triggered. Before a telegram
with the value 1 is sent to the object Calibration lighting to trigger the calibration of the
artificial lighting, the object must be made ready to receive the telegram. This is undertaken
by sending a telegram with the value 1 to the object Enable calibration.
Telegram value: 1 = triggering of artificial lighting calibration
0 = no effect
The calibration of the artificial lighting takes about 1 minute. When the calibration of the
lighting is completed the object value is reset to 0. The value is sent on the bus by setting
the T flag. After calibration the light control for the output is activated and controlled.
The Light Controller is thought to recognise the artificial lighting levels with lighting
calibration. At the same time a characteristic for the lighting is recorded and stored in
the Light Controller.
The artificial light calibration should be undertaken without the influence of daylight.
The lighting should be set so that the brightness value (setpoint) which is required during
constant lighting control in the room is set.
After a reset or discharge of the Light Controller via the ETS the stored values are not lost.
The values are only overwritten after a renewed calibration.
The artificial lighting calibration should always be undertaken so that the characteristic curve
of the luminaries is known to the Light Controller. In principle a setpoint can be read for the
Setpoint object for the Light Controller.
The current brightness of the setpoint can be read via the Actual value object. If required
it can be read in the Light Controller as a new setpoint via the Setpoint object. In this way
the current actual value is overwritten.
The sequence of daylight and artificial light calibration is not in any desired order.
Calibration with artificial light must be performed before calibration with daylight.
For further information see: Detailed description of the
27, 52,
Calibration daylight
1)
77, 102
This object is enabled if in parameter window
parameterised.
Using this object the daylight calibration for output X is triggered. Before a telegram with
the value 1 can be received on the object Calibration daylight, the object must be made
ready to receive it. This is undertaken by sending a telegram with the value 1 to the object
Enable calibration.
The daylight calibration is undertaken with natural light. The artificial lighting source is
switched off by the lighting. In order to avoid an undershoot of the set brightness setpoint in
the controlled state, the brightness for the daylight calibration in the reference range should
be about 10 % above the brightness for the daylight calibration.
Telegram value: 1 = triggering of daylight calibration
0 = no effect
The daylight calibration takes about 10 minutes. When the daylight calibration is completed
the object value is reset to 0. The value is sent on the bus by setting the T flag.
After calibration the light control for the output is activated and controlled.
The daylight calibration is thought to recognise the natural lighting levels with lighting
calibration. In this way the Light Controller determines the relationship between artificial
lighting and daylight which improves the constant lighting control. The daylight calibration
should be performed without the influence of artificial lighting. The setpoint brightness is
again to be set on the reference point in the room by the change of shading of the setpoint
brightness value. If this is not possible the daylight calibration factor can be assigned via
the die ETS. This factor can be optimised by experiment by observing the Light Controller
so that the light control is set to the setpoint brightness.
For further information see: Detailed description of the
The sequence of daylight and artificial light calibration is not in any desired order.
Calibration with artificial light must be performed before calibration with daylight.
1)
The numbers of the objects apply for outputs A to D.
Object name Data type
1 bit (EIS1)
Output X
DPT 1.003
in the parameter Select additional
X: General
artificial lighting calibration
1 bit (EIS1)
Output X
DPT 1.003
automatic daylight calibration is
X: Control
daylight calibration
Flags
C, R, W
C, R, W
93