Operating Instructions
Busch-Jalousiecontrol
®
II
Operation
Operating Instructions | 1473-1-8162
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7.2.4
Brightness sensor
Note
Brightness sensor 6414 can only be used in connection with flush-mounted insert 6411 U/S-101.
The values at which the sun protection function is triggered can be set individually on the flush-mounted insert via
a adjusting wheel and on the comfort timer control element in the display, so that the blind closes at the desired
brightness.
The sun protection function can be combined with operating modes "N" and "L". Prerequisite for faultless function
is that the blind can move past the sensor. If this is not the case, the awning function (see operating mode "M")
must be used.
Procedure
•
The sensor continuously measures the brightness and compares this value with the threshold value.
•
If the threshold value exceeds 90 seconds, the blind travels down.
•
As soon as the downward travelling blind darkens the sensor, downward travel is stopped.
•
´The blind travels up again and stops just above the sensor position.
•
The blind travels back to the top end position when the sensor exceeds the set threshold value for more than
15 minutes or a control signal is sent from a control element or an extension unit.
•
An operation from an extension unit or a control element interrupts the sun protection function, and manual
operation is executed.
•
A renewed activation of the sun protection function is carried out with an UP command (3 minutes travel time)
or the next bright / dark changeover. This happens automatically by means of the exterior brightness (evening
twilight).
Note
The twilight function is possible only in connection with the timer control element. See the
relevant operating manual.
