K-BUS
®
KNX/EIB
Dimming Actuators
37
The high and low threshold value limits the total output of the dimmer; any brightness value beyond the
range is not valid.
When the output is 0, it is able to set switching off the luminaries or remaining to a lower brightness value;
and also in this status it is optional to switch on the luminaries by receiving the message “absolute dimming”.
4.4. Status Report
1 data bit: the dimmer offers the possibility whether sending the latest brightness value report of the
controlled target and the changed report of the switch status to the BUS.
4.5. Scene
8 data bits control: the dimmer offers 15 (1-15) scenes for selection. It is possible to set ONE brightness
value and the gradual change time of ON for each scene. After setting, it is easy to call any favorite scene. 1 in the
highest bit of the scene command it means “saving” command, to save the current brightness value to the relevant
scene.
4.6. Preset Value
The dimmer can preset scene, the object directly through 1bit data to transfer the preset scene or through 1bit
data to let favorite scene to replace original preset scene. There are two preset values per output, there are two
brightness values can be transfer for each preset value. Such as in theater, we need a relatively bright lighting
effect when coming in, we can through transfer the first brightness value to be achieved this effect, when the
movie starts playing, we need a relatively dark lighting effect, we can through transfer the second brightness value
to be achieved. We can return to the previous brightness value when the movie ended.
4.7. Staircase Lighting Function
The dimmer offers the function of staircase lighting control besides the normal lighting control.
The staircase lighting function serves to switch off the lighting directly until dimming DOWN to 20% of the
brightness value after a set period. It is able to set the brightness of the luminaries, the duration of the light ON,
the time to dim down to 20% separately.
In this function, it uses 1 data bit control the targets directly by setting a permanent fixed value to the output
of the staircase luminaries.
The steps of staircase lighting control: the staircase luminaries will be switched on for a certain time (this
