Table of Contents
Advertisement
In addition, the devices of the group can be dimmed by a relative dimming operation. A relative
dimming operation is initiated by activating the "Start" button. Starting at the current brightness value
the dimming proceeds with the parameterized dimming speed within the brightness range specified for
the group. A relative dimming operation can be stopped by activating the "Stop" button. If the "Start"
button is activated again, dimming will take place in the opposite direction. A relative dimming to 0 %
brightness (OFF) is not possible.
A group-oriented DALI test can not detect an error in the DALI line (e.g. short-circuit or interrupted
line).
All actions during the group-oriented DALI test will be implemented internally via the corresponding
KNX/EIB objects of the groups. The internal object values, for example, will be read-out during the
readout of the brightness values. When a group is activated the switching object will be written.
Feedback will also be created for the KNX/EIB and the corresponding DALI group parameters will be
included. If no device has been assigned to the groups during the DALI commissioning there will be
no reaction in the DALI system.
DALI devices that are assigned several groups will always adjust to the state set last via one of the
assigned groups. In this case, the feedback of the switching status or the brightness value of a group
is not always unique.
Example 1: Group 2 is set to 10% brightness. Group 3 is then dimmed to a brightness value of 20%.
The lamps of group 3 will accept the brightness value of 20% that was called up last. The feedback
of group 2 remains on 10%, although some of the devices that belong to the group have been set to
20% brightness.
Example 2: group 2 is switched on and assumes the brightness value of 100%. The status of group 3
remains at 0% brightness (OFF) internally in the DALI Gateway. The brightness of group 3 has now
been increased. The lamps of group 3 will adjust to the dimming (increasing brightness starting at
minimum brightness) even though these lamps have been switched on before via group 2.
Best. Nr. 1060 00
"DALI Gateway C00CX2 EN / C00CX4 EN" software
Functional description
Page 106 of 136
Advertisement
Table of Contents
