Beninca EVA.7, Manual

14

see section “Balancing”.

TABLE 1

BEAM 

LENGTH (m)

SPRINGS TO 

BE USED

INDICATIVE TENSIONING 

(mm)

SPRING

364mm

SPRING

480mm

WITHOUT ACCESSORIES

5

1 spring, 480

35

5,5

1 spring, 480

90

6

1 spring, 364
1 spring, 480

31

15

6,5

2 springs, 480

5/5

7

2 springs, 480

35/35

WITH ACCESSORIES*

5

1 spring, 480

100

5,5

1 spring, 364
1 spring, 480

52

138

6

2 springs, 480

20/20

6,5

2 springs, 480

65/65

7

**

* One or more of these accessories: upper cover, flashing lights EVA.L, 
SC.RES, VE.RAST, VE.AM.
** A 7 m long beam can be used only without accessories.

HOW TO FIX THE BEAM 

FIG.6

Any accessories for the beam (protection edges, lights, pneu-
matic safety edges, rack, etc. ) are installed before fitting the 
beam. See relevant instructions.
Fit the beam to plate P by using bracket S and both the 6 
screws with the corresponding washers, and plate T.
Apply the removable plastic cover C. 

PREPARATION OF A RIGHT-HAND OR 

LEFT-HAND ROAD BARRIER

FIG.7-8

If it is necessary to modify the opening direction of the road 
barrier from right-hand to left-hand, or viceversa, proceed 
as follows:
•  totally unload the springs by loosening them and unhook 

them from the anchoring lever “L” (fig. 8)

•  remove screws D1 and D2 and fix the extension rod A in 

the opposite position, on lever V.

•  remove and fix the extension lever R in the opposite po-

sition.

•  fix the springs onto the anchoring lever “L” .
•  Fig. 8 shows the different positions of the components 

shows the differences between a right-hand road barrier 
and a left-hand one.

•  in the control unit, invert the wires of motor, as well 

as SWC limit switch (closing limit switch) and SWC-R 
limit switch (closure braking limit switch).

EMERGENCY MANUAL OPERATION 

FIG.9

Should a power failure occur or in the event of faults in the 
system, the beam can be released and moved by hand:
•  Introduce the customized key in the release lever and turn 

it clockwise.

•  Turn the release lever clockwise until the beam is released 

and it can be opened and closed by hand.

•  To reset the automatic operation, turn the lever anti-

clockwise until the beam is released. Reset the initial 
position.

BALANCING 

FIG.10

For a good operation of the road barrier, the beam must be 
suitably balanced by the spring. 
To check the correct balancing, proceed as follows:
•  Mechanically release the road barrier through the release 

key.

•  The road beam, correctly balanced at approx. 45° , should 

remain still in any position:

  - if it tends to open, reduce the spring tension
  - if it tends to close, increase the spring tension 
  The spring tension can be adjusted by tightening (anti-

clockwise rotation) or loosening (clockwise rotation) the 
spring by hand. Once the spring tension is adjusted, lock 
it by moving the nut “D” in contact with cap T.

•  In table 1 of the “indicative tensioning” column, mea-

sures (expressed in millimeters) are shown. To obtain a 
tensioning value near to optimal, these measures must 
be added to the spring length in rest position.

  For example: 
  In the event of a road beam 5.5m long, with installed ac-

cessories, the 364mm spring should be tensioned until 
a length of 416mm (364+52), while the 480mm spring 
should be tensioned at a length of 618mm (480+138). 

When two 480mm springs are used, the tensioning value 
of the two springs must be the same.

MOVEMENTS AND OPERATING TIME

During opening as per Fig. 11:

Starting from the closing position “C”, the beam starts its 
opening until it reaches the “SWO-R” point, where the ope-
ning limit switch triggers. The opening speed can be adjusted 
through the control unit.
The beam moves for the remaining space (as shown in Fig.11) 
at a reduced speed, for a time preset by the control unit.
Therefore, the barrier reaches point A, by completing the 
opening movement.

During closure, as per Fig. 12:

The beam starts moving from the opening point “A” and stops 
at “SWC-R “ point, when the braking limit switch triggers. The 
closing speed can be preset through the control unit.
After activation of the braking limit switch, the braking cycle 
starts, ending only when the closing limit switch “C” trig-
gers.
The control unit checks the activation of the “SWC” limit 
switch and it is able to automatically offset any changes due 
to different weather conditions, for example. 
The braking angle shown in Fig.12 is fixed at around 25°. 

Adjustments of the limit switch cams, trimmers and dip-
switches should be carried out by referring to these operating 
principles.

ADJUSTMENT OF LIMIT SWITCH CAMS

FIG.13

The adjustment of the limit switch cams allow for the fol-
lowing: 

Cam O  

To advance or delay the starting of braking in the opening 
phase (Fig.12 - “SWO-R” point).

Cam C