ABB i-bus KNX Product Manual page 177

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ABB i-bus KNX
Planning and application
1.
1a.
2.
3.
4.
5.
6.
7.
8.
1)
Before the artificial lighting calibration, ensure that the luminaires feature a constantly reproducible dimming performance
during dimming. For this purpose, the burn-in time
considered and already completed. Consider also that some fluorescent lamps only develop their full lighting intensity after
a few seconds.
2)
Interference of the artificial lighting calibration caused by daylight has the effect that the DLR/A assumes that the
illumination can produce a larger brightness level than is actually the case. The DLR/A will set a lower level of brightness in
light control operation.
Artificial lighting calibration
Configuration
Checking of the light sensor(s)
that is/are relevant for lighting
control.
Check the light sensor position.
Deactivating light control.
Slaves must be actively
integrated into the lighting.
Dim room lighting.
Set the artificial lighting so that
the setpoint brightness is set to
the reference point.
The light sensor should be
positioned above the reference
surface.
Switch calibration
communication object to ready to
receive.
Initiate artificial lighting
calibration.
Artificial lighting calibration end.
1)
(using lighting group 1 as an example)
By
Read out communication object Status
sensors (No. 9).
See Lighting control constraints
, page 168
Send the value 0 to communication
object Activate fct controller/status (No.
31).
Write the corresponding
communication objects Activate
function slave with the value 1.
Blind or time of day.
Set dimming via communication object
Relative dimming (No. 34) or
brightness value via communication
object brightness value (No. 32).
Send a telegram to communication
object Enable controller calibration (No.
27) with the number of the lighting
group.
Send a telegram with the value 1 to the
communication object Calibration
artificial lighting (No. 28).
Automatic through DALI Light
Controller.
(Effect of ageing on lamps, page 160) of the luminaires must be
Effect
The corresponding bit(s) for the
relevant light sensor must have the
value 1.
Sensor value is not subject to
interference.
Light control is deactivated.
The entire lighting which is effective
in the control must be active during
calibration.
Brightness in the detection range of
the light sensor(s) less than 20 lx
Setpoint is set, e.g. 500 lx. The
sensor of the lux meter should be
positioned vertically below the light
sensor.
Communication objects Calibration
artificial lighting and Calibration
daylight are ready to receive for 1
hour or until calibration has been
completed.
Light controller commences
calibration of artificial lighting. Jump
to 100 % brightness. Dimming to 0.
The calibration is completed after
about 1 minute.
At the end, the lighting control is
active and controlled.
DLR/A 4.8.1.1 | 2CDC507128D0202 175
2)