23
1/4"-20x1/2"
Carriage bolt
Lens
Wing nut
Figure 4
TROUBLESHOOTING THE SAFETY 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. (If bulbs are not
installed, 10 clicks can be heard.) See page 21.
Invisible Light Beam
Protection Area
Safety Reversing Sensor
Connect Wire to
Quick-Connect Terminals
Bell Wire
Bell Wire
Finished
Ceiling
Quick-Connect Terminals
3. To insert or release
wire, push in tab with
screwdriver tip
1. Strip wire 7/16"
(11 mm)
2. Twist like colored
wires together
7/16" (11 mm)
Red
Grey
White
Safety Reversing
Sensor
Figure 5
MOUNTING AND WIRING THE SAFETY 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 4).
•
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 7/16" (11 mm) of insulation from each set of
wires. Separate white and white/black wires
sufficiently to connect to the opener quick-connect
terminals. Twist like colored wires together. Insert
wires into quick-connect holes: white to white and
white/black to black (Figure 5).
ALIGNING THE SAFETY 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.