ABB i-bus KNX Product Manual page 149


ABB i-bus KNX
Commissioning
No.
35
Depending on the parameterization in the
displayed on the KNX using this communication object.
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
Ballast fault: The loss of a ballast in the lighting group is displayed. Loss of a ballast can be due to one of the following
situations:




Lamp fault: A defective lamp in the lighting group is indicated. This function must be supported by the DALI device. 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/S will also be unable to detect a lamp fault. In order to monitor a lamp fault, the Detect devices function does not
need to be explicitly run.
Lamp of ballast fault: 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/S with a logical OR.
Function
Lamp or ballast fault
Ballast fault
Lamp fault
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/S does not receive a status message.
The ballast has lost its address, a query from the DLR/S remains unanswered.
Note
In order to guarantee correct evaluation of a ballast fault, 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). Using this function, the DLR/S 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 Detect devices function must
be executed 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 Detect devices function can not only be triggered via the communication object Detect devices, but also
by pressing the S button in manual mode. Furthermore, this function can be triggered with the Software
Tool using the Detect devices button in the Options window.
Note
The information about an individual DALI device is provided with a fault by the DLR/S via coded diagnostics
communication objects (no. 19).
Object name
Group x
Parameter window - Gx Status, page 77, a fault in the lighting group x can be
Data type Flags
1 bit C, R, T
DPT 1.005
DLR/S 8.16.1M | 2CDC 507 100 D0202 147