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In case of trouble identifying the AC power cables, to properly connect two pairs
of photocells within one optical range the following procedure can be used:
•
make sure that the jumpers marked '
' in the transmitters and receivers of both pairs of
ZW
photocells are cut (open),
•
connect the power supply
to the transmitter and receiver of the first
12-24VAC (alternating)
pair of photocells.The
diodes in the transmitter and receiver should light up, as well
POWER
as the
diode in the receiver. If the
diode is off, the power cord wires should be swapped
RX
RX
only on the transmitter side or only on the receiver side. If the RX diode is still off, it means
that the receiver "does not see" the transmitter beam - correct the position of the
transmitter or receiver and, if necessary, repeat the steps described in this point,
•
supply the receiver of the second pair of photocells. As a result, only the
diode on
POWER
the receiver should light up.The
diode should remain off (which means that the receiver
RX
of the second pair of photocells does not react to the beam from the transmitter of the first
pair of photocells). If the
diode is lit, switch the power cord wires in the receiver,
RX
•
connect the power supply of the transmitter of the second pair of photocells. The
POWER
diode in the transmitter should be on, the
diode in the receiver of the second pair of
RX
photocells should also be on. If the
diode is not lit, switch the wires of the transmitter
RX
power cable,
•
connect the signal terminals of the photocell receivers (usually NC and C) to the
corresponding inputs of the control unit. Pay particular attention to the control method
(NC or NO) required in the control panel.The standard solution in gate automation is the
operation of optical sensors in the NC configuration.
5. Electrical connection of signal lamps
The signaling lamps are designed mainly to work with the signaling output of the
gate automation control unit. Lamps should be connected to the signaling output with an
output voltage of 12..24V AC / DC.The lamps do not have a built-in circuit breaker. An example
of connecting the lamps is shown in Figure 4.
EN
