22
Carriage Bolt
1/4"-20x1/2"
Lens
W
ing
Nu
t
1/4"-20
Figure 5
MOUNTING AND WIRING THE SAFETY
REVERSING SENSORS
• Slide a 1/4"-20x1/2" carriage bolt head into the slot on
each sensor. Use wing nuts to fasten sensors to
brackets, with lenses pointing toward each other across
the door. Be sure the lens is not obstructed by a bracket
extension (Figure 5).
• Finger tighten the wing nuts.
•
Run the wires from both sensors to the opener. Use
insulated staples to secure wire to wall and ceiling.
• Strip 1/4" (6 mm) of insulation from each set of wires.
Separate white and white/black wires sufficiently to
connect to the opener terminal screws: white to 2 and
white/black to 3 (Figure 6).
ALIGNING THE SAFETY REVERSING SENSORS
•
Plug in the opener. The indicator lights in both the
sending
and
receiving eyes
will
glow steadily
if wiring
connections and alignment are correct.
The
sending
eye amber indicator light will glow regardless
of alignment or obstruction. If the green indicator light in
the
receiving eye
is off, dim, or flickering (and the invisible
light beam path is not obstructed), alignment is required.
• Loosen the
sending eye
wing nut and readjust, aiming
directly at the
receiving eye.
Lock in place.
• Loosen the
receiving eye
wing nut and adjust sensor
until it receives the sender’s beam. When the green
indicator light
glows steadily
, tighten the wing nut.
TROUBLESHOOTING THE SAFETY
REVERSING SENSORS
1. If the
sending eye
indicator light does not
glow steadily
after installation, check for:
• Electric power to the opener.
• A short in the white or white/black wires. These can
occur at staples, or at opener connections.
• Incorrect wiring between sensors and opener.
• A broken wire.
2. If the
sending eye
indicator light
glows steadily
but the
receiving eye
indicator light doesn't:
• Check alignment.
• Check for an open wire to the
receiving eye
.
3. If the
receiving eye
indicator light is dim, realign either
sensor.
NOTE:
When the invisible beam path is obstructed or
misaligned while the door is closing, the door will
reverse. If the door is already open, it will not close. The
opener lights will blink 10 times. See page 20.
In
v
isi
b
le Light Beam
Protection Area
Safety Re
v
ersing Sensor
Safety Re
v
ersing Sensor
Bell
W
ire
Bell
W
ire
Finished
Ceilin
g
OPE
N
ER TERMI
N
AL SCRE
W
S
Sensor
Connections
Door Control
Connections
(Dotted Line)
1
2
3
Connect
W
ire to
Opener Terminal Scre
w
s
Figure 6
