ABB i-bus KNX Product Manual page 181

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ABB i-bus KNX
Planning and application
1.
1a.
2.
3.
4.
5.
6.
7.
8.
1)
Before the artificial light calibration, ensure that the lighting equipment offers a constantly reproducible dimming
performance during dimming. For this purpose, the burn-in time
lighting equipment must be considered and already completed. Consider also that a fluorescent lamp only develops its full
lighting intensity after a few seconds.
2)
Interference in the artificial light calibration caused by daylight has the effect that the DLR/S assumes that the illumination
can produce a larger brightness level than is actually the case. The DLR/S will set a lower level of brightness in light
control operation.
Artificial light calibration
Version
Checking of the light sensor(s)
that is/are relevant for light
control.
Check the light sensor position.
Deactivate light control.
Slaves must be active and
integrated in 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 Light control constraints
page 172
Send the value 0 to communication
object Fct Activate controller/Status
(no. 31).
Write the value 1 to corresponding
communication objects Function Slave.
Blind or time of day.
Dimming via communication object
Relative dimming (no. 34) or set
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
controller group.
Send a telegram with the value 1 to the
communication object Calibration
artificial light (no. 28).
Automatic through DALI Light
Controller.
(Effect of ageing on lighting
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 light and Calibration daylight
are ready to receive for 1 hour or
until calibration has been completed.
Light controller commences
calibration of artificial light. 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.
equipment, page 164) of the
DLR/S 8.16.1M | 2CDC 507 100 D0202 179
2)