Lamp And Ballast Monitoring - ABB i-bus KNX Product Manual

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ABB i-bus KNX
Planning and application
4.2

Lamp and ballast monitoring

The gateway can broadcast the fault state of the output's DALI lighting on the KNX. A control panel or
control center can evaluate and display this information. Required repair measures or corresponding
maintenance cycles can be initiated. This makes it possible to integrate the lighting into a higher-level
Facility Management system.
The prerequisite for this is that the lighting equipment is connected to the output of the DALI gateway and
features a DALI interface compliant with EN 62386 or EN 60929. There are various options for fault
messages:
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For lamp and ballast faults, a fault on the DALI output is transmitted on the KNX. Two separate group
objects (Lamp fault and Ballast fault) are available for this purpose. This information indicates that at
least one DALI device on the output has a fault.
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Each ballast or group has one group object available for a fault message. This group object can
contain information about a lamp or ballast fault, or a logical OR combination of lamp and ballast fault.
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The fault status of an individual DALI device can be requested via
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The number of a DALI device or group with a fault can be sent on the KNX as a numeric value via the
Ballast number fault group or Group number fault group object. If there are several faults, the number
of the next/previous device or group with a fault can be displayed using the Switch up next ballast fault
or Switch up next group fault group object. The number (count) of devices or groups with a fault can
be sent on the KNX using the Number of ballast faults or Number of group faults group object.
In order to guarantee correct operation the gateway has to know how many ballasts are to be monitored.
This is done by one-time activation of the Monitor DALI addresses group object. The gateway uses this
function to independently establish how many DALI devices are connected to each output and saves this
number as a reference value for the output. If devices are added to or removed from the system, the
Monitor DALI addresses function has to be reactivated. This process is only necessary if the number of
ballasts per output has changed and not when replacing a ballast. Monitoring can also be implemented in
the i-bus
Note
In order to detect a lamp fault, the DALI device must make the fault available on the DALI.
This is generally supported by all DALI ballasts. DALI dimmers and DALI switch actuators often do not
have this characteristic. To check for this function, refer to the technical data for the DALI device or
consult the lamp manufacturer.
214 2CDC507164D0201 | DG/S x.64.1.1
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a coded group object (Fault addressed) on the output. This 2-byte group object contains the
device or group number (this is parametrizable) and the fault information (lamp or ballast fault).
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Tool.