ABB i-bus KNX Product Manual page 166


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
During dimming-down from the switching value to the basis value, the communication object Warning
staircase lighting receives the value 1, which indicates switching off of the staircase lighting.
Voltage recovery behavior
The behavior 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 achieved 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 basis brightness causes the
lighting to switch off, if the time period for basis brightness has not been set to unlimited, see
window
switched on. In both cases, the function Staircase lighting is in standby and can be restarted by an ON
telegram.
As long as the function Staircase lighting 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 basis brightness, the staircase lighting is retriggered
(restarted from the start again). However the dimming-up phase will not run again.
Behavior with blocking and forced operation
Should the lighting group be blocked via communication object Block or forcibly operated via
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 blocking or
forced operation, the function Staircase lighting starts with the dimming-down phase. If the function
Staircase lighting was inactive, it will remain inactive.
164 2CDC507128D0202 | DLR/A 4.8.1.1
Parameter window - Gx Staircase
General, page 40. If the time period for basis brightness is unlimited, the staircase lighting remains
Parameter window Gx Group, page 63.
lighting, page 90.
Parameter