ABB DG/S 1.1 Product Manual page 30

®
ABB i-bus EIB / KNX
© 2006 ABB STOTZ-KONTAKT GmbH
Functional description
Dim period to reach turn on brightness resp. off state (Object Switch /
Status)
Option: Immediate
0.7 s
2 s
...
90 s
This parameter determines the period which a dimming process requires
when switching on at 0 % brightness to reach the switch ON value. The
same speed applies for switching off from the set brightness value to the
OFF value. This dimming time only affects dimming commands which are
received via ON/OFF telegrams. A soft start or soft stop can be set with this
parameter.
Dim period to reach turn on brightness (Object Set Brightness Value)
Option: Immediate
0.7 s
2 s
...
90 s
This parameter defines the time which a dimming process requires from 0 %
to the switch ON value. This dimming time only affects dimming commands
which are received via the communication object "Set Brightness Value" or
"Brightness value/Status".
Dimming speed, time for 0-100% (Object Relative Dimming)
Option: 0.7 s
...
8 s
...
90 s
This parameter defines the time in which a dimming process of 0...100% is
carried out. This dimming time only affects dimming actions which were
initiated by the communication object "Relative Dimming".
For all
With individual device control via EIB / KNX group assignment,
the parameterisable dimming time can be exceeded by the
relatively low DALI telegram speeds, if more than 7 individual
devices are contained in an EIB / KNX group. It must be
considered that an EIB / KNX command can trigger up to 64
individual DALI telegrams, which have to be sent consecutively
on the DALI control cable. As the influence also depends on the
lighting equipment and the status feedbacks, a final statement
of the performance can only be determined during real time
operation. This behaviour is irrelevant in broadcast mode.
The following must be observed when selecting the dimming
times: Depending on the lighting equipment involved, stepwise
dimming can occur with excessively high dimming speeds and
excessively short dimming times. This is due to the fact that
dimming steps are defined in the standard in order to achieve a
logarithmic dimming curve which appears as a linear response
to the human eye.
three parameterisable dimming times:
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