Exchange Of Dali Devices - ABB i-bus KNX Product Manual

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ABB i-bus KNX
Planning and application
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.
4.4

Exchange of DALI devices

If a DALI device fails in an existing DALI installation where DALI addresses are assigned without any gaps,
a DALI device as provided in the default state from the factory (without a DALI address assignment) can
be used for replacement and will avoid the requirement for re-commissioning. The new DALI device
automatically receives the first free DALI address, group assignments and scene parameters of the faulty
ballast from the DLR/A and can assume the functions of the failed DALI device with the same technical
characteristics.
Note
The parameter Enable automatic DALI addressing in
enabled for this purpose.
If multiple DALI devices on a DALI output fail or there are gaps in the DALI address assignment, it is not
possible to guarantee a unique assignment of the replacement device by the DLR/A.
The DLR/A assigns the new DALI device with the first free DALI address. If the new DALI device has a
DALI address, which is already used in the DLR/A, one of both DALI devices with the same address will be
assigned with a new and unused DALI address. In this way, the fault-free DALI device, which is already on
the DLR/A, may receive a new address.
Using the Software-Tool, a correction or exchange of the DALI address, as with the assignment to a
lighting group, can be implemented in a simple manner by Drag and Drop even without using ETS.
For more information see: online help, Software Tool
Parameter window General, page 40, must be
DLR/A 4.8.1.1 | 2CDC507128D0202 159