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24
photocell
receiver
gnd
v+
com
n.o.
n.c.
photocell
transmitter
gnd
v+
wiRing diagRam FOR a phOtOcell
safety photocells are used to prevent the gate from closing on a vehicle. the
gate will not close if the photocells light beam is broken. if a photocells light
beam is broken while the gate is closing, the gate will reverse back open until
the photocell is clear then the gate will close normally.
control and accessories terminal of the sd control Board
for solar powered sd operators the power for the photocell should come from
the dc flashing light output so it is only present when the gate is operating
dc flashing light output
Buzzer
m
otor
24v+
gnd
15v+
(reg)
led close
led open
photocell
transmitter
gnd
v+
photocell
receiver
gnd
v+
com
n.o.
n.c.