21
10.3
‐
Safe
guard
(Infrared
device
or
Photocell)
It
is
recommended
that
the
installer
install
the
included
infrared
photocell
for
additional
safety.
Photocells
work
by
inhibiting
the
movement
of
the
gate
if
the
beam
is
broken.
Infrared
safety
devices
may
be
required
by
law
in
some
areas.
If
the
infrared
beam
is
broken
during
closing,
the
gates
will
reverse
and
open
immediately.
During
opening,
the
beeper
will
ring.
Infrared
photocells
come
in
active
and
passive
varieties.
Active
photocells
require
power
on
both
sides
of
the
driveway,
whereas
passive
photocells
employ
a
reflector
plate
so
that
power
is
only
required
on
one
side
of
the
driveway.
Most
photocells
will
provide
DC
power
input
wires
+
and
‐
,
and
2
normally
closed
switch
wires.
To
install
the
photocell,
remove
the
short
circuit
wire
between
Terminals
(14)
and
(15).
Attach
the
normally
closed
wire
to
(14)
and
the
other
common
normally
closed
wire
to
(15)
(COM).
Attach
the
+12VDC
power
for
the
photocell
to
(13)
and
the
–DC
power
to
(15).
The
signal
wires
are
not
polarized
so
they
can
be
interchanged
without
issue,
but
the
power
wires
must
be
wired
correctly
to
prevent
damage.
Consult
your
device
manufacturer’s
documentation
for
details.
In
the
closing
phase,
if
an
obstacle
breaks
the
infrared
beam
of
the
photocell,
then
the
gate
will
stop
and
reverse
after
approx
3
seconds.
In
the
opening
phase,
the
function
of
the
photo
sensor
can
be
selected
between
active
or
passive.
If
the
photo
sensor
is
set
for
the
active
mode,
and
the
infrared
beam
is
broken,
then
the
system
will
stop
and
wait
for
a
new
command.
The
infrared
device
is
included
in
your
kit,
additional
devices
can
be
obtained
through
your
dealer.
To
find
a
dealer,
go
to
www.gatekeeperltd.com/dealers
