FAAC E024 U - Photocells Connections; Connections to Normally Close (N.C.) Photocell

4
FSW
STP CL OP
Ho to put together Normally Open connections.
( Connect them in parallel)
Ho to put together Normally Close connections.
( Connect them in series)
The photocells must be connected depending on which area
they must protect. (See Fig. 8)
Closing Safety D : These photocells protect the area cove-
red by the gate during the closing movement. They have no
eect during the opening movement.
Opening Safety B-C : These photocells protect the area
covered by the gate during the opening movement. They
have no eect during the closing movement.
Opening/Closing Safety A : These photocells protect the
area covered by the gate both during the opening and the
closing movements.
The E024U board allows the connection of several safety
devices (for example photocells). With photocells you can
activate the FAILSAFE function, which, before each movement
of the operator, tests each fotocells. In case the test fails the
movement is inhibited. To activate this function set to ON the
dip-switch N. 11 and 12 of DS1, and connect the negative of
the tranmitter to the OUT pin (No.9).
4.1 CONNECTIONS TO NORMALLY CLOSE (N.C.) PHOTOCELLS
Fig. 6
Fig. 8
Fig. 7
Connection of a pair of closing photocells and a pair of opening/closing photocells
To use the FAIL-SAFE mode connect the negative power supply of the transmitters to OUT (pin 9), and set dip-
switch 11 and 12 to ON on DS1
Fig. 9
RX= Photocell Receiver
TX= Ptotocell Transmitter
CL= Closing
OP= Opening
4 PHOTOCELLS CONNECTIONS