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ENGLISH
11.1. 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 zone to be protected (see fig.15).
Opening safety devices: they operate only during the gate
Closing safety devices: they operate only during the gate
Opening/closing safety devices: they operate during the
N.B.: If one or more devices have the same function (opening
or closing), they must be connected to each other in series.
N.C. contacts must be used.
Connection of no safety device
4
5
FSW
Connection of a pair of photocells, one for opening
and the other for closing
4
5
FSW
1
2
3
4
5
RX CL
1
2
TX OP
opening movement and, therefore,
they are suitable for protecting the
zone between the opening leaves
and fixed obstacles (walls, etc)
against the risk of impact and
crushing.
closing movement and, therefore,
are suitable for protecting the closing
zone against the risk of impact.
gate opening and closing
movements and, therefore, they are
suitable for protecting the opening
and closing zones against the risk of
impact.
Commonly used wiring lay-outs:
7
12
+
–
1
2
TX CL
1
2
3
4
5
RX OP
Application examples
Connection of a safety device for closing
4
12
–
FSW
Fig. 16
Connection of a pair of photocells, one for closing
4
5
FSW
Fig.18
18
Opening/closing safety devices
Closing safety devices Opening safety devices
and a safety device for opening
5
and one for opening /closing
7
+
RX CL
1
2
3
4
-
+
5
1
2
TX OP/CL
Fig. 15
12
–
Fig. 17
12
—
TX CL
1
-
+
2
1
2
3
4
5
RX OP/CL
Fig. 19
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