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2.4 Automatic dusk control unit with a Chronis Comfort (not with Chronis Comfort RTS)
Switching the automatic dusk control unit on / off:
You can switch the automatic dusk control unit on or off manually. The factory setting for the automatic dusk control unit is ON.
To switch the automatic dusk control unit off:
1 Press 2 seconds, then 0,5 seconds 6 times, until the “SEnS” screen.
2 Press twice to go to the darkness screen.
3 Press several times until is displayed.
4 Press 0,5 seconds, then 2 seconds to store the changes.
To switch the automatic dusk control unit back on:
1 Press 2 seconds, then 0,5 seconds 6 times, until the “SEnS” screen.
2 Press twice to go to the darkness screen.
3 Press several times to set the darkness reference value.
4 Press 0,5 seconds, then 2 seconds to store the changes.
Darkness reference value :
“1” = roller shutter does not close until dusk has set (10 Lux).
“12” = roller shutter closes as early as the onset of dusk (250 Lux).
Tip: It is best to enter data when the evening dusk reaches the brightness level at which you wish to have the shutter close automatically
in the future. To do this, set the “Dusk” reference value to 1, and then press Plus (+) until the moon symbol is displayed.
This value then corresponds to the current dusk setting.
2.5 Operating the automatic dusk control unit
As soon as the “Dusk” reference value does not meet the selected setting, the moon symbol ( ) is displayed. If the reference value remains
below this level for more than 5 minutes approximately and the DOWN switching time has arrived already, the control unit gives a DOWN com-
mand. If the DOWN switching time has not been exceeded yet, the control unit waits until this time comes and then moves the shutter down.
Example:
DOWN switching time Actual clock time Dusk value Action
20:00 19:45 reached The DOWN arrow in the display fl ashes.
Wait until switching time of 20.00 comes
20:00 20:15 Not reached yet Display in window changes to next UP
switching time, DOWN arrow fl ashes!
Wait for as long as “Dusk” reference
value is not met.
20:00 20:15 reached Shutter moves down.
Note: The dusk function can be impaired with strong sources of light in the surroundings of the light sensor.
14
:
32
C 21:27
S
3
IN
2 s.
CLOC
32
:
14
0.5 s.
SEnS
0n
b 06
SEnS
0.5 s.
0.5 s.
SEnS
0ff
0.5 s.
b 00
OFF
d 00
OFF
1432
:
27
:
C21
S
3
2 s.
1
2
4
*
*
*
*
14
:
32
C21:27
S
3
IN
2 s.
CLOC
32
:
14
0.5 s.
SEnS
0n
b 00
OFF
0.5 s.
0.5 s.
SEnS
0n
0.5 s.
b 06
SEnS
d 12
SEnS
1432
:
27
:
C21
S
3
2 s.
2
4
3
*
*
**
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