FAAC 620 Manual page 12

ENGLISH
All the signals sent (open, safety) are controlled by the
MASTER barrier; the SLAVE barrier carries out the same
movements.
RELAY BOARD (Fig. 22)
The RELAY board provides the possibility to control auxiliary
services through contacts that are available on the terminal
strip and are relevant to the various barrier statuses.
AUTOMATIC EMERGENCY RELEASE (Fig. 23a)
This device makes it possible, in case of a power failure, to
raise the beam manually without having to gain access to
the unlocking lever of the hydraulic power unit. A hydraulic
system ensures that the beam remains locked in open
position.
ANTI-VANDALISM VALVE (Fig. 23b)
This device safeguards the integrity of the hydraulic system
if the beam is broken open.
Fig. 23a
SKIRT KIT (Fig. 24)
The skirt increases the visibility of the beam.
It is available in 2 m and 3 m lengths.
IMPORTANT! If the skirt kit is fitted, the balance spring must
be adjusted.
ARTICULATION KIT (Fig. 25, mod. 620 only)
The articulation kit makes it possible to articulate the rigid
beam to a maximum ceiling height of 3 m.
IMPORTANT!If the articulation kit is fitted, the balance spring
must be adjusted.
END FOOT (Fig. 26)
The end foot supports the beam in closed position and
prevents it from bending downwards.
IMPORTANT!If the end foot is installed, the balance spring
must be adjusted.
Fig. 22
SUPPORT FORK (Fig. 27)
The support fork has two functions:
- it prevents the beam from bending or breaking if force
is applied to its end;
- it acts as a rest for the closed beam and prevents it
from bending downwards.
Fig. 23b
POSITIONING THE BASE PLATE FOR THE SUPPORT FORK
Fig. 24
Note: Dimensions are expressed in mm.
Figure 28 shows the positioning of the base plate for the
support fork.
P1 = base plate for barrier
L = beam length (in mm)
20
P2 = base plate for support fork
A = L-425 mm (620) L- 450 mm (640)
Fig. 25
Fig. 26
Fig. 27
Fig. 28