LEGRAND Pro 21 7756 31 User manual

Pro 21™
Group radio shutter switch
7756 31
LE00988AA
Characteristics
Power
supply
RF
Frequency
Range
1 CR2032
lithium battery
868.3 MHz
approximately 200 m
in free field
+ 5°C at + 45°C

2
L  50 mm
L =40 mm
L <40 mm
Characteristics (cont.)

3



Safety instructions
This product should preferably be
installed by a qualified electrician.
Incorrect installation or use may
cause electric shock or fire.
Read the instructions before installing.
Take into account the specific installation
location.
Do not open the unit. Legrand products
must only be opened and repaired by
qualified personnel, authorised by
LEGRAND. Unauthorised opening or repair
will cancel all liability, and will invalidate
the guarantee and any right to replacement.
Use only LEGRAND brand accessories.
Replacing the battery

Description
4
LEARN
key
LEARN
indicator
light
Control
keys
Factory settings
When first switching on, press the
control buttons for all blinds or shutters in
the "In One by Legrand" installation.
This facility enables to check the correct
operation and connection of all shutters.
A double press on the LEARN(1) key
cancels this general control function.
(1) Programming or learning key.

5
Operation
Shutter
- Opening
- Shutdown
- Closing
<0,4 s
<0,4 s
<0,4 s
STOP

6
Operation (cont.)
Slat orientation
- Opening
- Closing
>0,4 s
>0,4 s

Transmitter
Group radio shutter switch
E.g.: 7756 31
Operation (cont.)
Example of creation of a general control:
controlling an individual shutter switch using a group shutter switch.
Receiver
Individual radio shutter switch
E.g.: 7756 28
7

8
Operation (cont.)
Transmitter
Open the scenario
Receiver(s)
LEARN indicator
light
Note:
learning is only necessary on the UP key – DOWN and STOP are learned automatically.
Legend
The indicator light
goes out
The indicator light blinks
slowly
The indicator light blinks
rapidly The indicator light
is flashing
LEARN indicator
light Shutter

Operation (cont.)
Save
the scenario
To add several individual switches, repeat the operations and for each receiver.
Add the individual switch
Transmitter Receiver(s)
LEARN indicator
light LEARN indicator
light Shutter
9
Learning is complete: the “Up - Down - Stop” controls can be issued indiscriminately from the individual radio shutter switch
or the group radio shutter switch.

10
Operation (cont.)
Example: modification of the previous general control function by adding an individual shutter switch B.
Transmitter
Group radio shutter switch
E.g.: 7756 31
Receiver (shutter A and B)
Individual radio shutter switch
E.g.: 7756 28
Shutter A
Shutter B

11
Operation (cont.)
Transmitter
Open the scenario
Receiver(s)
LEARN indicator
light
All the products in the
existing scenario blink
LEARN indicator
light
Shutter A Shutter B
LEARN indicator
light
Shutter Shutter
Recall the existing
scenario

12
Operation (cont.)
Transmitter Receiver(s)
LEARN indicator
light LEARN indicator
light
Shutter A Shutter B
LEARN indicator
light
Shutter Shutter
Save the scenario
Individual shutter
switch B
The scenario has been modified: the access points can be controlled indiscriminately from the group shutter switch or the
individual radio shutter switch(es).

13
Operation (cont.)
Restores the product
to its factory settings.
10 s
5 s
Return to factory mode
Removing the transmitter from all scenarios
10 s 5 s

14
Operation (cont.)
PROBLEM CAUSE SOLUTION
The Learn indicator light comes
on for 5 seconds.
Learning is impossible. Install compatible products.
The Learn indicator light comes
on for 10 seconds.
The number of transmitters memorised
is greater than 32.
Delete unused scenarios.
The Learn indicator light
no longer blinks during learning.
The learning mode closes after
10 minutes (if no action is taken).
Start learning again.
During learning, pressing
the programmed control button does
not make the Learn indicator light blink
rapidly.
After a press on the Learn key,
Function key learning must be done
within the following minute.
Start learning again.
When the scenario is saved the Learn
indicator lights of certain receivers do
not go out.
Poor communication between
products.
Reduce the distance between
the transmitter and the receiver(s),
then start learning again or add
a repeater.

15
Pro 21™
Rollladenzentralschalter mit Funksteuerung
7756 31
Technische Daten
Stromver-
sorgung
Funkfrequenz
Reichweite
1 Lithiumbatterie
CR2032
868,3 MHz
ca. 200 m
im Freifeld
+ 5°C bis + 45°C

16
L  50 mm
L =40 mm
L <40 mm
Technische Daten (Fortsetzung)

17



Sicherheitsvorschriften
Dieses Gerät darf nur durch eine
Elektrofachkraft eingebaut werden.
Bei nicht ordnungsgemäßem Einbau
bzw. Gebrauch besteht Stromschlag-
oder Brandgefahr.
Vor dem Einbau die Anleitung lesen
und den gerätespezifischen Einbauort
beachten.
Das Gerät nicht öffnen. Alle Geräte von
Legrand dürfen ausschließlich durch von
LEGRAND geschultes und anerkanntes
Personal geöffnet und repariert werden.
Durch unbefugtes Öffnen und/oder
Reparatur erlöschen alle Haftungs-,
Ersatz- und Garantieansprüche.
Ausschließlich Zubehör der Marke
LEGRAND verwenden.
Batterieaustausch

18
Beschreibung
LEARN-
Taste
LEARN-
Leuchtdiode
Bedientasten
Werkseinstellung
Bei erstmaliger Inbetriebnahme werden
durch Drücken der Tasten sämtliche
Öffnungspunkte (Rollladen oder Jalousie)
der „In One by Legrand“ Installation
angesteuert.
Diese Funktion dient der Prüfung des
einwandfreien Betriebs und Anschlusses
aller Öffnungspunkte.
Das zweimalige Drücken der LEARN-Taste(1)
annulliert diese Funktion der
Zentralansteuerung.
(1) Programmier- oder Einlerntaste.

19
Funktionsweise
Rollladen
- Auf
- Stop
- Ab
<0,4 s
<0,4 s
<0,4 s
STOP

20
Funktionsweise (Fortsetzung)
Lamellenverstellung
- Auf
- Ab
>0,4 s
>0,4 s