DALI Light Controller

The ABB i-bus® KNX DALI Light Controller DLR/A 4.8.1.1 is a KNX
device surface-mounted (SM) device for installation in suspended
ceilings or underfloor.
The DALI Light Controller can in conjunction with the application
program Control Dim Groups 4f DALI/1 integrate devices with
DALI interfaces into a KNX building installation. The connection to
KNX is implemented via a bus connection terminal.
The 4 sensor inputs for the Light Sensor LF/U together with the
first 4 lighting groups of the DALI Light Controller can be used for
a constant lighting control.
The DALI output can be used to connect up to 64 DALI devices.
The 64 DALI devices should be assigned into 8 lighting groups
with the ETS independent Software Tool. Control of the 64 DALI
devices via KNX is exclusively group-orientated.
The fault status (lamps and ballasts) of every individual DALI
device can be sent via a coded communication object on the
KNX.
In the DLR/A, a staircase lighting time curve can be set. Constant
lighting control can be combined with a staircase lighting time
curve, so that constant lighting control can be implemented during
the staircase lighting time curve.

The 8 lighting groups can be integrated into scenes as required.
Using a 1 bit or 8 bit KNX scene telegram, these scenes can then
be recalled or stored via the KNX. Furthermore, a master/slave
function with integrated offset is available that can be used to
integrate further lighting groups or dimming actuators into the
lighting control.
Using central telegrams, all the DALI devices connected to a DALI
output can be commonly controlled via the KNX (broadcast).
The DLR/A is a DALI control device (master) and requires an AC or
DC auxiliary power supply. The DALI power source for the 64 DALI
devices is integrated into the DALI Light Controller. In order to
control the DALI devices manually or via the KNX, the KNX voltage
and the auxiliary voltage (light controller supply voltage) must be
applied. Should one of these voltage sources be absent, the DALI
devices can no longer be controlled. The behavior of the DALI
devices on voltage failure can be parameterized.
All the DALI devices connected can be commonly turned on or off
via manual operation on the device.