ABB i-bus KNX Product Manual page 170

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ABB i-bus KNX
Planning and application
During the staircase lighting sequence, the maximum and minimum dimming values (dimming thresholds)
remain valid. They can be parameterized in the
During dimming-down from the switching value to the basic value, the communication object Warning
staircase lighting receives the value 1, which indicates switching off of the staircase lighting.
Voltage recovery behavior
The reaction after KNX bus voltage recovery as well as after light controller supply voltage recovery is
parameterized in the
Response to switch telegram during the Staircase lighting sequence
If the dimming time has not yet been reached and the DALI Light Controller receives an OFF telegram for
the lighting group, dimming is started immediately. If the lighting group is currently dimming down, dimming
down continues when an OFF telegram is received. An OFF telegram during the basic brightness causes
the lighting to switch off, if the time period for the basic brightness has not been set to unlimited, see the
Parameter window
lighting remains switched on. In both cases, the Staircase lighting function is in standby and can be
restarted by an ON telegram.
As long as the Staircase lighting function is active, an ON telegram causes a restart of the staircase
lighting. If the staircase lighting is already at the switch-on value, the switch-on phase is restarted
(retriggered). During dimming down or reaching of the basic brightness, the staircase lighting is retriggered
(restarted from the beginning). However, the dimming-up phase is not performed again.
Behavior with blocking and forced operation
Should the lighting group be blocked via the communication object Block or forcibly operated via the
communication object Forced operation during the staircase lighting sequence, the current brightness
value is frozen or the forced brightness is set and the lighting group is blocked. After the end of a Block or
Forced operation, the Staircase lighting function starts with the dimming-down phase. If the Staircase
lighting function was inactive, it will remain inactive.
168 2CDC 507 100 D0202 | DLR/S 8.16.1M
Parameter window - Gx Staircase
General, page 43. If the time period for the basic brightness is permanent, the staircase
Parameter window Gx Group, page 67.
lighting, page 94.