ABB i-bus KNX Product Manual page 140

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ABB i-bus KNX
Commissioning
No.
28
This communication object is always enabled and is only required for the lighting groups with the additional function Light
control.
Using this communication object, the artificial lighting calibration for the lighting group is initiated via the communication
object Enable controller calibration (No. 27). The calibration of the lighting group occurs automatically via the DLR/A, if on
the communication object Calibration artificial light, a telegram with the value 1 is received.
Telegram value:
The calibration of the artificial lighting takes about a minute. When the calibration of the artificial lighting is completed, the
communication object value is reset to 0. The value is sent on the KNX by setting the T flag. After calibration, the light
control for the DALI output is activated and controlled.
The DLR/A is thought to recognize the artificial lighting levels with lighting calibration. At the same time, a characteristic for
the lighting is recorded and stored in the DLR/A.
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 DLR/A via the ETS, the stored values are lost. The determined values are retained with a
download, KNX bus voltage failure or a light controller supply voltage failure. The values are only overwritten after a
renewed calibration.
The artificial lighting calibration should always be undertaken, so that the characteristic curve of the luminaires is known to
the DLR/A.
Using the Software-Tool (control), a control parameter (actual value) can be determined for a setpoint value (brightness
value). If required, this setting can be read into the DLR/A as the new setting for a setpoint value via the communication
object Control parameter, e.g. communication object No. 41 for lighting group 1. In this way, the control setting for the
current setpoint is overwritten. In this way, the control setting for the current setpoint is overwritten.
For further information see:
The sequence of daylight and artificial lighting calibration is not random. Calibration with artificial light must be performed
before calibration with daylight.
138 2CDC507128D0202 | DLR/A 4.8.1.1
Function
Calibration artificial light
0 = no effect
1 = triggering of artificial light calibration
Performing artificial lighting calibration
Object name
DALI output
, page 174
Data type Flags
1 bit C, W
DPT 1.003