ABB i-bus KNX Product Manual page 75


ABB i-bus KNX
Commissioning
Dim period to reach switching value
(function Switch)
Options:
A soft start or soft stop can be set with this parameter. For this purpose, the time duration during which the
DLR/S dims the lighting group from 0 % brightness to the switch-on value with an ON telegram is defined.
The same speed also applies for an OFF telegram. The dim period is only relevant for ON/OFF telegrams
(1 bit).

Jump to: All devices of the lighting group switch ON immediately.

0.7 s...90.5 s: During this time, the lighting group is dimmed from 0% brightness to the switch-on
value.

Flexible dimming time – settable via KNX: The time received via the communication object Fade time
(DALI format) or (KNX format) has an effect on the ON/OFF switching reaction. There are 16 discreet
values which are defined according to DALI for the Flexible time for dimming. If the KNX format is
selected for the Flexible dimming time, rounding off errors can occur as a result of discreet DALI
times.
For further information see:
page 203
Note
The switch off time is also considered when the lighting group is at the lower dimming threshold and an
OFF telegram is received. In this case, the lighting group switches off at the lower dimming value limit
only after the programmed dimming time for switch ON/OFF. This ensures that all lighting groups switch
off simultaneously.
Jump to
0.7 s
2.0 s
...
90.5 s
Flexible dimming time – settable via KNX
Communication object no. 8, page 129, and Table of fading times Fade Time (no.
DLR/S 8.16.1M | 2CDC 507 100 D0202 73
8),