ABB i-bus KNX Product Manual page 144


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 light 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/S, if, on the
communication object Calibration artificial light, a telegram with the value 1 is received.
Telegram value:
The calibration of the artificial light takes about a minute. When the calibration of the artificial light is completed, the
communication object value is reset to 0. The value is sent on the KNX by setting the T flag. After calibration, light control
for the DALI output is activated and controls.
The DLR/S is taught to recognize the artificial light levels with lighting calibration. At the same time, a characteristic for the
lighting is recorded and stored in the DLR/S.
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 light control in the room,
is set.
After a reset or discharge of the DLR/S 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 light calibration should always be performed, so that the characteristic curve of the lighting equipment is
known to the DLR/S.
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/S as the new setting for a setpoint value via the communication
object Control parameter, e.g. for lighting group 1, communication object no. 41. This overwrites the controller setting for
the current setpoint value.
For further information see:
The sequence of daylight and artificial light calibration is not random. Calibration with artificial light must be performed
before calibration with daylight.
142 2CDC 507 100 D0202 | DLR/S 8.16.1M
Function
Calibration artificial light
0 = No effect
1 = Triggering of artificial light calibration
Performing artificial light
Object name
DALI output
calibration, page 178
Data type Flags
1 bit C, W
DPT 1.003