Instructions

40
EN
18.3 Automatic darkness control; brief description
The automatic dusk function causes the roller shutters to
close automatically to the lower end point or congured
ventilation position.
You can choose between two automatic dusk func-
tions:
◆ Automatic dusk function with Astro programme
= switching time mode [ ASTRO ]
◆ Automatic dusk function with light sensor
= switching time mode [ SENSOR]
Automatic darkness function with Astro
programme
Automatic dusk function with connected
light sensor
At twilight, the roller shut-
ters will lower to the lower
end limit or congured ven-
tilation position after ap-
prox. 10 seconds. The roller
shutters will open again
once the congured open-
ing time is reached or in the
event of a manual com-
mand.
The required twilight limit is congurable.
NOTE
The automatic dusk function via light sensor is only ex-
ecuted once per day.
Mounting the light sensor
(see page 43, Automatic solar function)
The twilight time is recal-
culated every day based on
the geographical loca-
tion and the current date
(dened by the congured
postcode).
Congure a custom oset period
An oset can be congured between -60 and +60 minutes
in order to customise the calculated dusk time to your
personal preferences. This means that it is not necessary to
continuously readjust the closing time throughout the year.
A light sensor is not used for this function.