ABB i-bus KNX Product Manual page 145


ABB i-bus KNX
Commissioning
No.
35
By parameterizing this communication object, in
be displayed on the KNX.
This communication object is a variable communication object, which contains, according to its parameterization,
information about a ballast fault, a lamp fault or a combination of both faults.
Telegram value
Fault ballast: The failure of ballast in the lighting group is displayed. Loss of a ballast can be due to one of the following
situations:




Fault lamp: A defective lamp in the lighting group is indicated. This function must be supported by the DALI devices. If DALI
devices are used, which do not monitor their lighting equipment and which thus do not provide this information on the DALI,
the DLR/A will also be unable to detect a lamp fault. In order to monitor a lamp fault, the function Detect ballasts does not
need to be explicitly run.
Fault lamp or ballast: A fault in the lighting group is displayed if at least one lamp or ballast of the lighting group exhibits a
fault. Both faults are logically linked in the DLR/A with a logical OR.
Function
Fault lamp or ballast
Fault ballast
Fault lamp
1 = fault of one or more DALI devices in the lighting group x
0 = no fault
The ballast is faulty and does not send telegrams on the DALI control line.
The ballast has no ballast operating voltage and does not send telegrams on the DALI control line.
The DALI control line to the ballast is interrupted, so that the DLR/A does not receive a status response
The ballast has lost its address, a query from the DLR/A remains unanswered
Note
In order to guarantee correct evaluation of a ballast fault, the DLR/A has to know how many ballasts are to
be monitored. This is implemented by one-time activation of the communication object Detect ballasts (No.
25). Using this function, the DLR/A independently determines which ballasts (DALI devices/DALI
addresses) are connected and uses this state as a reference value. Here not only the number but also the
address of the DALI device is registered. If the system has to be modified, the function Detect ballasts must
be undertaken again.
The process does not need to be repeated when exchanging a DALI device with the same address. The
new DALI device receives the old DALI address and assumes the position of the DALI device it replaced.
The function Detect ballasts can be triggered not only via the communication object Detect ballasts, but also
by pressing the S button in manual mode. Furthermore, this function can be triggered with the Software-
Tool using button Detect ballasts in the Options window.
Note
The information about an individual DALI device with a fault is provided by the DLR/A via coded diagnostics
communication objects (No. 19).
Object name
Group x
Parameter window - Gx Status
Data type Flags
1 bit C, R, T
DPT 1.005
page 73, a fault in the lighting group x can
DLR/A 4.8.1.1 | 2CDC507128D0202 143