ABB i-bus KNX Product Manual page 106

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ABB i-bus KNX
Commissioning
Follow-up time of the inactive control
in s [0...65,535]
Options:
If constant lighting control is deactivated or interrupted by the user, e.g. by manual dimming, the current
dimmed-to brightness value is stored for the duration of the follow up time. The follow-up time commences
after the lighting group is switched off.
If the lighting is switched back on during the follow-up time using the communication object Switch
(manually or automatically by a presence detector),lighting control is not restarted. The lighting is switched
on with the brightness value stored beforehand.
If however, the lighting is switched on by the switching object after the follow-up time, the lighting control is
recommenced.
Should the lighting group be switched off during lighting control via the communication object Switch,
a follow-up time is not started.
This behavior is intended for the user who, after leaving the room and returning after a short period,
wishes to retain the lighting state set manually beforehand. This can be undertaken by manual switching or
automatically by a presence detector via the communication object Switch.
Note
The light control can assume three operating states:
Lighting control is not active: The lighting control has been deactivated via the communication object
Activate fct controller/status (telegram with value 0 has been received). In this state, the lighting group
behaves like a "normal" DALI lighting group. ON telegrams on the communication object Switch do not
cause the light control to start. Only after a telegram with the value 1 is has been received via
communication object Activate. fct controller is the light control started. Whether the additional function
Light control is active is indicated by the communication object Status additional function, see
Communication object No.
Lighting control is in standby mode: The lighting control is active but has however been ended, e.g.
by the OFF telegram to the communication object Switch. The lighting control still remains active in the
background and starts again with control after an ON telegram to the communication object Switch or
Activate fct controller/status
Lighting control operates: The DLR/A controls and adjusts the lighting so that the setpoint brightness
is set. The state of the lighting control is indicated by the communication object Status additional
function, see
104 2CDC507128D0202 | DLR/A 4.8.1.1
0...60...65.535
3, page 121.
Communication object No. 3, page 121.