ABB i-bus KNX Product Manual page 67

®
ABB i-bus KNX
© 2008 ABB STOTZ-KONTAKT GmbH
Commissioning
•
slow: The Light Controller commences with sending dimming steps at
slow speed (< 4 seconds) to achieve the setpoint. The control speed is
dependent on the divergence from the setpoint, see table.
Achieving the setpoint value is also dependent on the control increment
size, refer here to
X: Control
•
individual setting: A fine adjustment of the control can be undertaken.
Control dynamics are enabled on other parameter pages. On this
parameter page there are parameters used to influence the Light
Controller.
Generally artificial lighting and daylight are sufficient in order to ensure exact
and stable constant lighting control. If however – e.g. due to special ambient
conditions and/or properties of the luminaries – it is not possible, in the
parameter window
X: Control
control can be undertaken.
For further information see:
Upper control limit during active lighting control
Options: 100 % (255)/99 % (252)...51 % (130)/50 % (128)
This parameter defines the maximum brightness value, which the output of
the Light Controller can use during light control.
If a brightness value is recalled which is larger than the upper limit, the Light
Controller sets the upper limit for the output. This value is reported back on
the bus.
The control limits are independent of the dim and value limits which are
parameterised in the parameter windows
Lower control limit during lighting control
Options: 50 % (128)/49 % (125)...20 % (51)...1 % (3)/0.3 % (1)
This parameter defines the minimum brightness value which the output of
the Light Controller can use during light control. From a brightness value
less than or equal to 10 % the message Attention: illuminant charact. is
displayed.
If a brightness value is recalled which is less than the lower limit, the Light
Controller sets the lower limit for the output. This value is reported back on
the bus.
Dynamics.
Dynamics, a manual fine calibration of the light
Function of the constant light control
X: Dimming
and
X: Value.
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