ABB i-bus KNX Product Manual page 100

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ABB i-bus KNX
Commissioning
Brightness on ballast recovery
in operation
Options:
This parameter defines how a failed ballast reacts if it is has already been detected by the gateway and
does not respond (has failed) and is detected by the gateway again.
•
Actual KNX target state: The ballast adopts the brightness value it would have adopted on receiving a
KNX telegram had it not failed.
•
No change: The ballast does not change its current brightness value after recovery.
•
Maximum brightness value (100%): After recovery, the ballast switches on at or is dimmed to the
maximum brightness value.
•
Min. brightness value (1%): After recovery, the ballast switches on at or is dimmed to the minimum
brightness value.
•
OFF (0%): The ballast switches off after recovery.
Note
The minimum and maximum dimming values (dimming thresholds) still remain valid.
The Scene, Staircase lighting, Block and Forced operation functions as well as dimming processes are
interrupted. The state of the timer functions after a download or after KNX bus voltage recovery must be
set separately in the appropriate timer function parameter window.
The supply voltage applied to DALI equipment, e.g. ballasts, is a prerequisite for the equipment to
respond correctly.
Note
Interaction between Power-On and DALI voltage recovery (interface failure):
After the supply voltage is restored to the DALI ballast, its Power-On level is set. This brightness value
is stored in the ballast and is set by the DALI device (ballast) once its supply voltage recovers.
Simultaneously, the gateway starts to receive responses from the DALI device (ballast) again on the
DALI. The Brightness on ballast recovery in operation parameter takes effect at this point, setting
the brightness value parametrized here.
If one setting has a higher priority than the other, the other must be set to No change.
98 2CDC507164D0201 | DG/S x.64.1.1
Actual KNX target state
Maximum brightness value (100%)
Min. brightness value (1%)
OFF
No change