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5.7 Wind alarm
5.7.1 Wind sensor
The wind sensor moves the blinds automatically to a protection position when any previously
defined threshold of the wind speed is exceeded. The sensitive blind slats or awnings are thus
protected against possible destruction by high winds or storms.
CUP ANEMOMETER
The cup anemometer generally consists of three to four arms on a common axis with
semi-spherical cups at the ends in each case. The wind sensor for the blind control system con-
sists of two components: the cup cross and the wind sensor interface. It is installed on the roof or
on a wall of the building. Note that the anemometer must be installed in a favourable position
for the wind speed measurement and not in the lee.
5.7.2 Wind sensor interface
L N – + 1 2
I
II
Test LED
Setting
test / Wind strength
Anemometer
setting
JUNG Art. No: 132 U WS
Wind sensor with converter
The wind sensor interface is the control gear of the cup cross. Depending on the level of the
preselected wind speed, a floating output relay in the anemometer interface closes. A mains
voltage of 230 V is applied to the satellite unit input 2 of the blind insert via this relay. The blinds
are automatically moved up if the wind sensor establishes that the wind speed is too high.
In the group or central controller, all blinds whose satellite unit input has been wired to the wind
sensor interface are firmly locked in the upper limit position and cannot be operated automati-
cally or manually. The wind alarm is not revoked and the blinds cannot be operated again until
the wind speed measured by the wind sensor has dropped again.
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