ABB i-bus KNX Product Manual - page 28
ABB i-bus
KNX
Device technology
26 2CDC 507 100 D0202 | DLR/S 8.16.1M
2.5
Display elements
19 display LEDs are located on the front of the DALI Light Controller:
In manual mode, the selection of the lighting group is indicated. In KNX operation, the monitoring state of
the DALI lighting group is indicated via the LEDs.
Note
Manual operation is only possible if the KNX voltage and light controller voltage are applied on the
DLR/S. The ready to operate state is indicated by the green LED
when it is lit up. If the light
controller operating voltage has failed or is not connected, the LED
flashes and, at the same time,
the LED
lights up to indicate that no DALI voltage is being generated by the DLR/S.
Should the KNX voltage fail, no LED will light up. The reaction of the connected lighting groups at KNX
bus voltage failure can be parameterized.