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Switch/shutter actuator 8/4gang 16A RMD
75318003
Switch/shutter actuator 16/8gang 16A
RMD
75310002
Technical
Documentation
© Berker GmbH & Co KG 2007
Version: 04.04.2007
Part 5
(Subject to prior change)
75310002.doc
Seite: 101 / 174
Configuring the slat offset in the sun protection mode (only "Blind" mode of operation)
For the slat position at the beginning of shading, an offset can be specified separately for each output, if
fixed or variable slat positions are to be approached.
If necessary, the slat offset can correct the fixed or variable nominal slat position and thus allow the creation
of an individual shading situation, when the sun protection is active. The offset can be preset in two ways...
–
The slat offset can be parameterized statically in the ETS. The parameterization of a statical offset value
allows to vary the degree of shading in those parts of the building that are not exposed to full sunshine
due to objects in front of the building. The variable slat angle adjusted by the sun protection control or
the fixed angle specified in a parameter can thus be overridden so that the slats are always opened a
bit wider than originally preset. Alternatively, the slats can also be closed completely by means of the
statical offset if too much sunlight is reflected into the room.
–
The slat offset can additionally be adapted by the bus via the separate communication object "Sunshine
slat position offset" In this way, the desired slat offset can also be adjusted during an active shading
cycle and independent of a direct operation as, for instance, the short-time mode. Thus, it is possible,
for instance, that persons in a room can correct the slat angle at any time 'manually' and individually by
selecting another preset value at a touch sensor or a visualization. An offset preset via the object
overwrites the value parameterized in the ETS.
The preset offset is taken into account in the sun protection mode for each positioning move during an
active shading cycle and added to the predefined nominal slat position. The offset value can be varied
within a range from -100 % … 0 … 100 % so that the slats can be moved in both directions into the
respective end positions (cf. Fig. 34). At an offset of "0 %", the actual slat position is always identical with
the predefined nominal slat position for sun protection purposes.
50%
(Offset = 0%)
20%
nominal slat position ath the
beginning of shunshine/shading
slat position after offset correction
80%
Offset: -30%
Offset: +30%
90%
(Offset = 0 %)
60%
100%
Offset: -30%
Offset: +30%
slat position after offset correction
nominal slat position ath the
beginning of shunshine/shading
Fig. 34: Functional principle of slat offset
(example showing slat type 1 / slat type 2 identical)