Connection of Two Pairs of Closing Photocells, One
Monitored and One non Monitored
Opening/Closing Safety Devices:
They operate during the gate opening and closing move-
ments and are suitable to protect the opening and closing
areas against the risk of impact. Typically these photocells
work in combination with other monitored photocell pro-
tecting closing or opening entrapment zones. In that case
they can’t be monitored so they can only protect against
potential impact on vehicles.
Closing Safety Devices
Opening Safety
Devices
Opening/Closing 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
910111213141516171819
OPEN
A
B
STP
CL
OP
FSW
---
+24V
++
-TX
FSW
20 21
W.L.
LOCK
-
+
-
+
-
+
-
+
1
2
5
4
3
1
2
RX OP
TX OP
-
+
-
+
-
MONITORED
MONITORED
NON MONITORED
Connection of One Pair of Closing Photocells
(monitored), One Pair of Opening Photocells
(monitored) and One pair of Opening/Closing
Photocells (non monitored)
16” or less