Monitoring Of Lamps And Ballasts - ABB i-bus KNX Product Manual

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ABB i-bus KNX
Planning and application
4.3

Monitoring of lamps and ballasts

With the DLR/S, the fault state of the lighting in the building can be broadcast on the KNX. A control panel
or control center can evaluate or display this information. Required repair measures or corresponding
maintenance cycles can be initiated. It is thus possible to integrate the lighting in a higher-order Facility
Management system.
The prerequisite is that the lighting equipment is connected to the DLR/S and features a DALI interface
compliant to EN 62386 or EN 60929. Different possibilities are available for the fault messages:

One communication object (no. 35, 47 etc.) is available for a fault message per lighting group. This
communication object can contain the information about a lamp fault (Lamp fault), a ballast fault
(Ballast fault) or a logical OR combination of lamp and ballast fault (Lamp or ballast fault).
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The fault status of the individual DALI device can be read via
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The number of the DALI device with a fault or a lighting group with a fault (can be parameterized) can
be sent as a numeric value with the communication object No. Group/device fault (no. 21) on the KNX.
If several faults exist, the number of the next/previous DALI device or the next/previous lighting group
can be displayed via the communication object Switch up next fault message (no. 22). The number of
devices or lighting groups with a fault are sent via the communication object Number of faults (no. 20)
on the KNX.
In order to guarantee correct operation, the DLR/S has to know how many ballasts are to be monitored.
This is implemented by one-time activation of the communication object Detect devices (no. 25). With this
function, the DLR/S establishes automatically how many DALI devices are connected and the addresses
to which they are connected. The DLR/S saves this information as a reference value. If this system has to
be extended or reduced, the Detect devices function should again be executed. This process is only
necessary if the number of ballasts per output has changed or when the DALI address assignment has
changed. Should a ballast be exchanged by a device that has the same DALI address, it is not necessary
to execute Detect devices again. Detection of a ballast can also be performed manually be pressing the
S button in manual mode. In the Software Tool, it is also possible to trigger detection of the ballasts.
Note
In order to detect a lamp malfunction it must be sent by the DALI device on the DALI control line.
This is generally supported by the DALI ballasts. DALI dimmers and DALI switch actuators often do not
have this characteristic. The function can be found in the technical data of the DALI device or by
consulting the manufacturer of the lamps.
162 2CDC 507 100 D0202 | DLR/S 8.16.1M
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A coded communication object (Fault group/device code, no. 19). This 1 byte communication
object contains the device or lighting group number (this can be parameterized) and the fault
information (Lamp or ballast fault). The function can be taken from the descriptions in the
chapter Communication

The communication object Diagnostics (no. 6) and be made available on the KNX. The function
can be taken from the descriptions in the chapter
objects, from page 121.
Communication objects, from page 121.