2
ENGLISH
4.1. Connection of photocells and safety devices
Before connecting the photocells (or other devices) we advise
you to select the type of operation according to the movement
area they have to protect (see fig.3):
Opening safety devices:
they operate only during the gate
opening movement and, therefore, they are suitable for
protecting the area between the opening leaves and
fixed obstacles (walls, etc) against the risk of impact
and crushing.
Closing safety devices:
they operate only during the gate closing
movement and, therefore, they are suitable for
protecting the closing area against the risk of impact.
Opening/closing safety devices
Closing safety devices
Opening
safety devices
1
2
5
4
3
1
2
RX CL
TX CL
1
2
5
4
3
1
2
RX OP/CL
TX OP/CL
-
+
-
+
1
2
5
4
3
1
2
RX OP
TX OP
-
+
-
+
9 10 11 12 13 14 15 16 17 18 19
OPEN
A
B STP CL OP
FSW
-
-
-
+24V
+
+
-TX
FSW
20 21
W.L.
LOCK
Connection of a pair of closing photocells and a pair of
opening/closing photocells (recommended lay-out)
9 10 11 12 13 14 15 16 17 18 19
OPEN
A
B STP CL OP
FSW
-
-
-
+24V
+
+
-TX
FSW
20 21
W.L.
LOCK
1
2
5
4
3
1
2
RX CL
TX CL
1
2
5
4
3
1
2
RX OP/CL
TX OP/CL
-
+
-
+
Fig. 3
Opening/closing safety devices:
they operate during the gate
opening and closing movements and, therefore, they
are suitable for the opening and closing areas against
the risk of impact.
It is recommends use of the lay-out in fig. 4 (in the event of fixed
obstacles at opening) or in fig. 5 (no fixed obstacles).
N.B. If two or more devices have the same function (opening or
closing), they should be connected to each other in series (see
fig. 12). N.C. contacts must be used.
Connection of a closing safety device and an opening
safety device
9 10 11 12 13 14 15 16 17 18 19
OPEN
A
B STP CL OP
FSW
-
-
-
+24V
+
+
-TX
FSW
20 21
W.L.
LOCK
Fig. 6
Connection of a pair of closing photocells, a pair of
opening photocells and a pair of opening/closing
photocells (recommended lay-out)
Fig. 4
Connection of no safety device
9 10 11 12 13 14 15 16 17 18 19
OPEN
A
B STP CL OP
FSW
-
-
-
+24V
+
+
-TX
FSW
20 21
W.L.
LOCK
Fig. 7
Fig. 5
Connection of 1 pair of opening photocells
1
2
5
4
3
1
2
RX
TX
-
+
-
+
9 10 11 12 13 14 15 16 17 18 19
OPEN
A
B STP CL OP
FSW
-
-
-
+24V
+
+
-TX
FSW
20 21
W.L.
LOCK
Fig. 8
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