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Rev. 1.3  11/03 

E

LECTRONIC 

P

ANEL 

LRX 2151 

Mono-phase electronic exchange, for the automation of gates 
with incorporated receiver. 

- Mod. 

LG 2151

Without radio Receiver 

- Mod. 

(

 

LRQ 2151 ) 

30,875MHz 

- Mod. 

(

 

LR 2151 ) 

306 

MHz 

- Mod. 

(

 

LR 2151/330 ) 

330 

MHz 

- Mod. 

(

 

LR 2151/418 ) 

418 

MHz 

- Mod. 

LRS 2151

433,92  MHz 

- Mod. 

LRS 2151 SET 

: Narrow band 

433,92  MHz 

(  )

 This product is destined only for countries in which this use 

is allowed. 

T

ECHNICAL 

D

ATA

 

- Power supply: 

230VAC  50-60Hz  8W Max 

- Flashing light output: 

230VAC  500W Max 

- Motor output: 

230VAC  500W Max 

- Aux. power output: 

24VAC  5W Max 

- Radio receiver: 

refer to type 

- Op. transmitters: 

12-18 Bit or Rolling Code 

- TX max. codes in memory 

63 different codes  

- Working temperature: 

-20÷85°C 

- Dimension of panel: 

110x150x75mm 

- Degree of panel protection: 

( ABS V-0 ) IP 55 

T

ERMINAL 

B

OARD 

C

ONNECTION 

CN1 

1:  230VAC input. 
2:  230VAC input. 
3:  230VAC flash input. 
4:  230VAC flash input. 
5:  Opening 1 motor output. 
6:  Common 1 motor output. 
7:  Closing 1 motor output. 
8:  Opening 2 motor output. 
9:  Common 2 motor output. 

10:  Closing 2 motor output. 

T

ERMINAL 

B

OARD 

C

ONNECTION 

CN2 

1:  24VAC 5W service feed output. 
2:  24VAC 5W service feed output. 
3:  Open-close push button input (NA). 
4:  Common GND input. 
5:  Safety device input (NC). 
6:  Aerial earth input. 
7:  Aerial hot pole. 

O

PERATING 

C

HARACTERISTICS

 

 
Selection of Automatic operation or Step by step 
operation :

 

The centre in its default setting shows the automatic working 
function set. To set the step by step function: press the MODE 
button continuously for 5 seconds, when  all the signalling 
Leds are flashing, the programming is stored.  If on the other 
hand, the memorized function  is to be removed, follow the 
same programming procedure or follow the RESET 
procedure.

 

Automatic operation: 

By using either the radio control (led CODE on) or the low 
tension button panel (PUL) to operate the gates, commands 
will have the following effect: the first command impulse 
activates the opening mechanism  until time expiry of the 
timing motor or until the gate is fully opened, the second 
command impulse closes the gate, if a command impulse is 
received before the activation of the limit switch, the direction 

of movement of the mechanism will be 

reversed

 whether 

engaged in opening or closing operations. 

 
 
 
Step by step operation: 

By using either the radio control (led CODE on) or the low 
tension button panel (PUL) to operate the gates, commands 
will have the following effect: the first command impulse 
activates the opening mechanism  until time expiry of the 
timing motor or until the gate is  fully opened, the second 
command impulse closes the gate, if a command impulse is 
received before the activation of the limit switch, the direction 
of movement of the mechanism will be 

halted

 whether 

engaged in opening or closing operations.

 

Automatic closing 

The control board may be set up automatically to close the 
gates. 
The set-up procedure is described under the instruction for 
setting the delay period. 

Safety device 

The control board allows for the connection and control of 
Photocells, Tyre sensors (NC). 
Command from these devices are ignored during opening 
whilst the gate is closing they will reverse the direction of 
movement. 
If not used the terminals must be jumped. 

Electronic clutch

 

The control is equipped with an adjustable electronic clutch, 
using Trimmer VR1. To adjust, move Trimmer VR1 until the 
device moves, but can still be blocked by an obstacle (for 
example, the test can be carried out by blocking the device 
with the hands). 

Functioning of the Flasher

 

The panel board is powered by an output for the use of a 
flasher 230VAC. Its function is conditioned by the movement of 
the motor and the automatic closure that when inserted 
enables the flash even during a pause. 

P

ROGRAMMING

 

 
SEL button:

 selects the type of function to be memorised, the 

selection is indicated by a flashing Led. 
By repeatedly pressing the button it is possible to choose the 
desired function. The selection will remain active for 10 
seconds indicated by a flashing Led, if no other operations are 
executed during this period, the control board will return to its 
previous state. 

SET button:

 programmes the information relative the type of 

function previously selected with the SEL button.

 

Led Reference 

Led off 

Led on 

1) CODE 

No code 

Code activated 

2) T. MOT. 

Unlimited timing 

Programmed delay 

3) T. PAUSE 

No automatic close  With automatic close 

4) RIT. ANTE AP  No wing delay 

Programmed delay 

5) RIT. ANTE CH  No wing delay 

Programmed delay 

1) CODE: 

(Radio control code) 

The board allows the memorisation up to 63 radio commands 
having different codes, which are either fixed or rolling code. 

 
Programming: 

The transmission code is programmed in 

the following manner: press the SEL button until the CODE led 

GB

 

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