LEGRAND Pro 21 7756 39 User manual

Pro 21TM
PLC/IR lighting scenario switches
7756 39
Characteristics
LE00386AA
Voltage 100-240 V AC
Frequency 50 - 60 Hz
2 x 1,5 mm2
or 1 x 2,5 mm2
Standards EN 50065
IEC 60669-2-1
- 5°C to + 45°C
-5°C
+ 45° C
- 5° C

L � 50 mm
L =40 mm
L <40 mm
Characteristics (continued)
2

3
mm
8
L
N
Wiring
Safety instructions
This product should be installed
preferably by a qualified electrician.
Incorrect installation and use can
entail risk of electric shock or fire.
Before carrying out the installation, read
the instructions and take account of the
product’s specific mounting location.
Do not open up the device. All Legrand
products must be exclusively opened and
repaired by personnel trained and appro-
ved by LEGRAND. Any unauthorised
opening or repair completely cancels
all liabilities and the rights to replace-
ment and guarantees. Only use genuine
accessories.

4
ON
--
OFF
1
2
Control buttons Control buttons
LEARN button LEARN indicator light
Description Factory settings
When first powered up, pressing the ON
or OFF buttons controls all the lighting
points in the «In One by Legrand» ins-
tallation.
This option is provided to check the cor-
rect operation and connection of all the
luminaires.
Pressing the LEARN(1) button twice can-
cels this general control function.
(1) Programming or learning button.

5
Operation
Example: creating a scenario
Remotely control a dimmer.
mm8
L
N
mm8
Transmitter
Lighting scenario switch
E.g. 7756 39
Receiver
300-W dimmer switch
E.g. 7756 49
L1

6
Operation (continued)



Transmitter
Open the
scenario
Add the
dimmer
switch
Receiver(s)
LEARN
indicator
light
LEARN
indicator
light
L1
< 0,4s
Key
Indicator light
goes off
Indicator light
blinks slowly
Indicator light
blinks fast
Indicator
light flashes

7
Operation (continued)
�
�
Transmitter
Save the
scenario
Receiver(s)
LEARN
indicator
light
LEARN
indicator
light
L1
To add several dimmers to the scenario, repeat operations 3and 4 for each receiver
A long press of the dimmer and the OFF button are learnt
automatically.
< 0,4s

Operation (continued)
Program two lighting levels, for example:
- 50% on button 1
- 75% on button 2
8



Transmitter Receiver(s)
LEARN
indicator
light
LEARN
indicator
light L1
Programming the button 1 level
< 0,4s
Open the
scenario

9
Operation (continued)



Transmitter Receiver(s)
LEARN
indicator
light
LEARN
indicator
light L1
Set the lighting level to 50%
< 0,4s
> 0,4s
And/or
Save the scenario

10
Operation (continued)



�
Transmitter Receiver(s)
LEARN
indicator
light
Voyant
LEARN L1
< 0,4s
< 0,4s
Programming the button 2 level
Open the
scenario

11
Operation (continued)
�
�
Transmitter Receiver(s)
LEARN
indicator
light
LEARN
indicator
light
L1
Set the lighting level to 75%
> 0,4s
And/or
Save the scenario

12
Operation (continued)
Deleting a scenario on the transmitter
Restore the product
to factory settings
Deleting all the scenarios on a transmitter
10 s
10 s
5 s
5 s
The scenario is deleted

13
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 saved is
greater than 32.
Delete unused scenarios.
During learning, the Learn indicator
light stops blinking.
If there is no activity, the learning
mode shuts down after 10 minutes.
The control button was not pressed in
the minute after pressing Learn.
Restart the learning procedure.
When saving the scenario, the Learn
indicator lights of some receivers do
not go off.
Incorrect communication between the
products.
Check the wiring (connection).
Check for the presence of a possible
disruptive device (*).
Isolate it with a filter.
(*) Examples of a disrupter: electronic transformers, switch-mode power supply.
Operation (continued)