Project design and programming
© 2006 ABB STOTZ-KONTAKT GmbH
76
ABB i-bus
®
EIB / KNX
4.9
Facility Management
One of the benefits of the DALI standard is the detection and reporting of
ballast and lamp faults. This information can be displayed directly by the
corresponding evaluation logic or routed to a control unit in order to arrange
the appropriate maintenance or service procedures.
The current status of the lighting system is monitored continually or can be
queried if required at any point.
Lamp and ballast faults can be detected per channel as well as per device
with the DALI-Gateway DG/S 1.1. If each lamp should be monitored
individually, the device must be selected with the addressing object. The
fault is read later
*)
. This is however not normally necessary. In most cases, it
is sufficient if the group or strip of luminaires in the room or corridor is
known, in order to send the maintenance personnel to the correct place with
the appropriate information. The faulty lamp is then detected directly on site.
Lamps can be exchanged directly if they fail. Exchange of a faulty DALI
device is possible without commissioning. If it is necessary to replace a DALI
device, it is better if the DGS11 addressing tool is used (see appendix) in
order to assign the correct DALI address to the new device. The use of ETS
is not absolutely necessary.
A fault acknowledgement can be set. This means that the fault signal is only
reset once the fault has been acknowledged manually. Otherwise, the DALI-
Gateway automatically resets the error signal once the fault has been
rectified (replacement of the lamp or ballast).
Fig. 35
System representation of a fault signal
*
)
When a device is selected, the state of the lamp and ballast is
automatically sent, if this has been selected in the parameter window
“Status” with the parameter “On change of selected device send Fault Lamp
and Fault Ballast”.
