Manual

24
S
A
F
E
+
+
O
P
E
N
B
O
P
E
N
A
O
P
C
L
J1
J
5

BLUE
S
A
F
E
+
+
O
P
E
N
B
A
O
P
E
N
O
P
C
L
S
A
F
E
+
+
O
P
E
N
B
A
O
P
E
N
O
P
C
L
S
A
F
E
+
+
O
P
E
N
B
A
O
P
E
N
O
P
C
L
Fig. 23
Fig. 24
Fig. 25
Fig. 26
Fig. 27
Fig. 28
5.4.1. Connection of photocells and safety devices
Before connecting the safety devices and photocells we advise
you to select the type of operation according to the movement
area they have to protect (see fig.24 for example):
Opening safety devices: they are tripped when an obstacle is
detected only during gate opening movement. They
cause immediate closure and resumption of opening
motion on release (see programming in par. 5.5.2.)
Closing safety devices: they are tripped when an obstacle is
detected only during gate closing movement. They
cause re-opening, either immediate or on release
(see programming in par. 5.5.2.)
Opening/closing safety devices: they are tripped during the
gate opening and closing movements. They cause
stopping and restart motion on release.
"Edge" safety devices: they are tripped during the gate opening
and closing movements. They cause immediate
reversal of motion and stopping after two seconds.
Encoder: it is tripped if there is an obstacle during gate opening
and closing movements. It causes immediate reversal
of motion and stopping after two seconds.
N.B. If two or more safety devices have the same function
(opening, closing, opening and closing, edge), the contacts
must be connected to each other in series (fig. 25).
N.C. contacts must be used.
N.B: If safety devices are not used, jumper connect the terminals
as shown in fig. 26.
The most common photocell and safety device lay-outs are
shown below (from fig. 27 to fig. 34).
230 Vac (max.
60W)
230Vac
50-60Hz
TOTAL
OPEN
PARTIAL
OPEN
STOP
For connection of the
photocells and safety
devices, see paragraph
5.4.1.
LIMIT-SWITCH
24 Vcc
max. 3W
Capacitor
5.4. ELECTRIC CONNECTIONS
Closing
photocells
Closing photocells
Opening or
opening/closing
photocells
"Edge" safety devices
Connection of two N.C. contacts in series
(e.g. Photocells, Stop, Edge, etc.)
Connection of no safety device
Connection of a closing safety device and an opening
safety device
Connection of an "edge" safety device