LEGRAND Pro 21 User manual

Note:
One individual blind control operates a single motor.
Characteristics
LE00387AA
Voltage 100 - 240 VA
Frequency 50 - 60 Hz
2 x 1,5 mm2
or 1 x 2,5 mm2
Standard Power line carrier EN 50065
- IEC 60669-2-1
- 5° C to + 45° C
-5°C
110 VA
230 VA
1 x 270 VA
1 x 500 VA
Pro 21TM
PLC/IR individual blind control with
slat angling and Preset
7756 23

2
Safety instructions:
This product should be installed prefe-
rably 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 replacement
and guarantees.
Only use genuine accessories..
Wiring

3
Characteristics (continued)
L> 50 mm
L= 40 mm
L< 40 mm

4
Control
buttons
LEARN button
Preset button
LEARN indicator light
Description Factory settings
When first powered up, pressing
the buttons controls all the
opening points (roller shutter or blind) in
the “In One by Legrand” installation.
This option lets you check the correct
operation and connection of all the
blinds.
Pressing the Learn(1) button twice cancels
this general control function.
(1) Programming or learning button.

5
Operation
Blind
Open
Stop
STOP
Close
<1 s
<1 s
<1 s

6
>1 s
>1 s
Operation (continued)
Slat angling
Open
Close

7
Operation (continued)
1 - Calibration procedure:
a -
b - and
10 s
The product has learnt the length of the blind it controls; now it can learn an opening level (PRESET mode).

8
Operation (continued)
2 - Function: "End-stop adjustment"
This function cuts the motor-driven forces exerted on the blinds if there is no endstop.
Function activation
Function deactivation
The blind rolls down by 1 step
The blind rolls down by 1 step
10 s
10 s

9
Operation (continued)
3 - Learning an opening position (PRESET mode)
1 - Set the required opening level
2 - Save the set opening level
The blind rolls down 1 step
10 s
The level is saved
This product can save a selected intermediate opening level.
One press on the Stop button (blind stopped) opens the blind to the selected level (this PRESET function does not save
slat angle).

10
8mm
E2E1
Transmitter
Centralised blind control
e.g. 7756 26
Receiver
Individual blind control
e.g. 7756 23
Operation (continued)
Example: creating a general control:
Control an individual blind control using a centralised blind control

11
Transmitter LEARN indicator Receiver(s) LEARN indicator Blind
Open the scenario


Operation (continued)
Note:
Only the roll-up button has to be learnt; the stop – roll-down buttons are learnt automatically.
Key
The indicator light
switches off
The indicator light
flashes slowly
The indicator light
flashes quickly
The indicator
light flashes

12
Operation (continued)
Transmitter LEARN indicator Receiver(s) LEARN indicator Blind
Save the
scenario

Add the individual control


To add several individual controls, repeat operations and  for each receiver.

13
8mm
E2E1
Transmitter
Centralised blind control
e.g. 7756 26
Blind A
Blind B
Receiver (blind A and B)
Individual blind control
e.g. 7756 23
Operation (continued)
Example: Modification of the previous general control by adding an extra individual blind B control.

14
Blind A Blind B
Transmitter LEARN indicator Receiver(s) LEARN indicator Blind LEARN indicator Blind
Open the scenario


Reminder
of the
existing
scenario
All the products
of the existing
scenario blink
Operation (continued)

15
Operation (continued)
Blind A Blind B
Transmitter LEARN indicator Receiver(s) LEARN indicator Blind LEARN indicator Blind
Add blind B


Save the scenario

Individual blind control
A and B

16
Operation (continued)
Deleting one receiver from all the scenarios (on the Receiver)

10 s
5 s

Restore the product
to factory settings

17
Operation (continued)
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 closes 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 certain receivers do
not go off.
Incorrect communication between the
products.
Check the wiring (connection).
Look for the presence of a disruptive
device (*).
Isolate it with a filter.
Impossible to perform the calibration
procedure.
Blind does not support this function Set the product to the factory settings.
Do not perform the calibration
procedure.
Opening to a preset level is impossible
Product can only be made to Roll
Up/Stop/Roll Down
(*) Examples of a disrupter: electronic transformers, switch-mode power supply.