ABB i-bus KNX Product Manual page 106


ABB i-bus KNX
Commissioning
Changing brightness during lighting
control ("Correction speed")
Options:
This parameter determines how fast the lighting changes when the lighting control commences.
Normally, this parameter can be used to select between fast, medium, slow and individual setting. With
master mode, only medium, slow and individual settings are possible to reduce the bus load.

Fast: The DLR/S starts to control with fast successive (< 2 seconds) dimming steps in order to reach
the setpoint as quickly as possible. A fast correction may be necessary if the constant light control has
the react quickly to the shade or shadows which result from a blind which closes quickly.

Medium: The DLR/S commences with sending dimming steps at medium speed (< 3 seconds) to
approach the setpoint.

Slow: The DLR/S commences with sending dimming steps at slow speed (< 4 seconds) to approach
the setpoint. The control speed is dependent on the divergence from the setpoint, see table
the
see

Individual setting: A fine adjustment of the control can be undertaken. Further parameters are enabled
that can be used to influence the light control.
104 2CDC 507 100 D0202 | DLR/S 8.16.1M
Offset value to increase/decrease
x% of master brightness value
+10/ +80...+20, 0 , -20...-80 %
Options:
Using this parameter, the percentage offset is determined that is used to increase or
decrease the brightness value of the master, refer to
Fast
Medium
Slow
Individual setting
setpoint, page 175. Achieving the setpoint value is also dependent on the control increment size,
control dynamics, page 105.
Generally, artificial light and daylight are sufficient in order to ensure exact and stable
constant light control. Should this not be possible however – due to particular ambient
conditions and/or the properties of the lighting equipment – then the controller can be
influenced with the following parameters:
Slave with offset function, page 193.
Determine