Universal dimmer actuators GDA2K-400 KNX / GDA4K-400 KNX
pdated: Mai-17 (Subject to changes) Page 42 of 63
4 APPENDIX
4.1 Use of the soft switch function
4.1.1 General
The Soft switch function is a cycle consisting of switch-on, dimming up,
Maintain target brightness, dimming down and switch-off.
4.1.2 Soft ON for staircase lighting
The following function is recommended for staircase lighting:
When the light switch is operated: Full brightness.
After required length of time: Lighting is slowly dimmed down and then switched off.
0 %
t(h)
100 %
A/B
t1 = 0s
t3
t2 / t2+
Min.
Val.
C
D
P
A
Button sends
Soft ON
telegram.
t1
The
Soft ON
time is equal to 0, i.e. the "Dim up slowly" function is deactivated
B
The brightness is immediately adjusted to the configured value after
Soft ON
t2
Configured time between
Soft ON
and
Soft OFF
elapses
t2+ It is possible for t2 to be extended with another
Soft ON
telegram
C
t2 or t2+ has elapsed, or a
Soft OFF
telegram was received:
Start of the
Soft OFF
phase
t3
The brightness is gradually reduced within the configured time for
Soft OFF
S
t3 has elapsed, the configured
minimum brightness
has been reached and the system dims to 0%
The light can be turned off with a Soft OFF telegram or
retriggered with a Soft ON telegram.
11
Soft Off
via configured time or via
Soft Off
telegram.