Comunello Automation LIMIT 500, Installation And User Manual

30

COMUNELLO

  ®Copyright 2016 - All rights reserved

LIMIT 600

BAR ASSEMBLY

LENGTH (meters)

AND SPRING CHOICE

2,0 2,5 3,0 3,5 4,0 4,5 5,0 5,5 6,0

Bar
Bar with bar cover kit
Bar with bar cover kit and led
Bar with swing down support
Bar with bar cover kit and swing down support
Bar with bar cover kit, led and swing down support
Bar with curtain
Bar with upper bar cover and curtain
Bar with upper bar cover, led and curtain
Bar with upper bar cover,
led, curtain and swing down support

 Small spring AC 530        Medium spring AC 540

 Double spring AC 550

LIMIT 800

BAR ASSEMBLY

LENGTH (meters)

AND SPRING CHOICE

6,0

6,5

7,0

7,5

8,0

Bar
Bar with swing down support
Bar with joint

 Medium spring AC 540        Double spring AC 550

Spring pull adjustment:

With the operator released (heading 4.4.3), bring the arm manually to 
approximately the mid-point of its excursion (45°) FIG. 14 and release it. 
If the arm tends to rise or fall, the spring must be adjusted, rotating it as 
shown in FIG. 15.

4.4.2 LIMIT SWITCH ADJUSTMENT 
The LIMIT barrier system is equipped with electromechanical limit switches 
and two bumpers that damp the impact against the limit switches (FIG. 
16A).
It is essential to make sure the bumpers are adjusted in such a way that the 
limit switches can be operated. Make sure the limit switches trip correctly; if 
necessary, adjust the actuator cams as shown in FIG. 16B

Proceed as follows to adjust the bumpers:
•  Release the arm as described in heading 4.4.3
•  Screw or unscrew the bumper pads on the plate as shown in FIG. 16A
•  Secure the bumpers with the locknuts

4.4.3 MANUAL RELEASE
•  To release the operator, so that the barrier arm can be moved by hand, 

turn the key counter-clockwise and open the front hatch as shown in 
FIG. 17.

5 PREPARATION FOR ELECTRICAL
 CONNECTIONS

•  Remove the front cover using the supplied key (Fig.4)
•  Use only double insulated cables (sheathed cables) during the installation 

phase for both the connections in AC voltage (230 V) and the ones in 
SELV safety extreme low voltage (flashing, photocells). 

•  Double insulation of cables has to be maintained up to the immediate 

proximity of terminals, unsheathing them exclusively in proximity of 
terminals and they will have to be bonded by cable ties.

•  Use only plastic raceways during the installation phase.
•  Use separate raceways for the low voltage wirings (230 V) and for the 

ones in SELV safety extreme low voltage.

•  Safety extreme low voltage conductors have to be physically separated 

(at least 4 mm up in the air) from the ones in AC voltage, or they have 
to be adequately isolated with additional insulation with a thickness of at 
least 1 mm.

•  Use FG7 2x1,5 mm2 cables or an higher category as power cord.
•  Provide upstream of the mains supply of the automation a device that 

can assure an all-pole disconnection from the electrical grid (with the 3rd 
category of overvoltage and with an opening distance of the contacts in 
each pole of at least 3 mm), in compliance with the installation rules and 
directly connected to the power supply terminals.

•  Bring the wiring to the electronic circuit board located at the top of the 

operator, routing the cables along the rear wall as shown in FIG. 18A and 
FIG. 18B.

6 TESTING

Perform the following sequence of operations to test the LIMIT barrier 
system:
•  Check that all the prescriptions in this manual have been followed 

scrupulously, with special attention to chapter 1 “General Prescriptions”;

•  Using the supplied control or stopping devices (key selector switch, 

control pushbuttons or remotes), perform opening, closing and 
stopping tests and make sure the barrier responds correctly to the 
various commands.

•  Check operation of all the system’s safety devices (photocells, safety 

edges, emergency stop, etc.), one by one.

7  PRODUCT MAINTENANCE

Maintenance must be carried out at regular intervals by qualified personnel 
in compliance with the provisions of statutory legislation and the regulations 
in force. LIMIT undergo scheduled servicing at least once every 6 months.
•  Disconnect the operator from all power supplies
•  Check all the moving parts and renew any worn parts
•  Check all parts of the automation system for signs of deterioration

8 SPARE PARTS

Spare parts can be purchased by contacting technical service.

9 DISPOSAL

At the end of its useful life the automation system must be dismantled by 
qualified personnel and the materials must be recycled or disposed of in 
compliance with the local legislation in force.

10 ELECTRONIC CIRCUIT BOARD

10.1 TECHNICAL CHARACTERISTICS

•  Back-up Battery input: 

24 V  7A/h max.

•  Flashing light output: 

24 V  25 W max.

•  Motor 1 output: 

24 V  motor 50 W max.

•  Output LED: 

LED strip 24V  50 W max.

•  Electric lock output: 

24V  15W max.

•  Photocells power supply: 

24 V  4 W max. 

•  Indicator light output: 

12 V  3 W max.

•  Working temperature: 

-20 °C + 50 °C

•  Radio receiver: 

see model

•  Transmitters: 

18 Bit o Rolling Code

•  Max TX codes stored in memory:  120 Remotes 
•  Board dimensions: 

160x105 mm.

10.2 ELECTRICAL CONNECTIONS

CN1:

BATT+24V: 

Back-up B input

BATT-24V: 

Back-up Battery – input

LAMP+24V: 

25W Flashing Light + output

LAMP-24V: 

25W Flashing Light – output

MOT1+: 

Operator 1 + output.

MOT1-: 

Operator 1 – output.

LED+24V: 

50 W max LED Strip + Output.

LED-24V: 

50 W max LED Strip – Output.

CN2:

SYNC:  

Master/Slave Synchronisation Output (Free Contact)

SYNC:  

Master/Slave Synchronisation Output (Free Contact)

FOTO+: 

Photocells Control and Power Supply (24V~ 5W).

FOTO-: 

Common GND input

DS2:   

Safety Device 2 Input (NC).

GND:   

Common GND input

DS1:   

Safety Device 1 Input (NC).

STOP 8K2: 

Emergency Stop Input (NC).

GND:   

Common GND input.

P PED:  

Open only PED command input (NO).

PP: 

Open-Close or Close command Pushbutton input (NO).

ELS+:   

Electric Lock/Arm Clamp output 24 V  (+24V).

ELS-:   

Electric Lock/Arm Clamp output 24 V  (GND).

24V 5W: 

Services output (24V~ 5W)

GND:   

Common GND input.

+24VLED: 

Indicator light output (+24 V  4 W).