23
1/4"-20 x 1/2"
Carriage bolt
Lens
Wing nut
Figure 4
Invisible Light Beam
Protection Area
Safety
Reversing
Sensor
Connect Wire to
Opener Terminals
Bell Wire
Bell Wire
Finished
Ceiling
OPENER TERMINAL SCREWS
Sensor
Connections
Door Control
Connections
(dotted line)
1
2
3
Safety
Reversing
Sensor
Figure 5
MOUNTING AND WIRING THE SAFETY SENSORS
• Slide a 1/4"-20 x 1/2" 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. See 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 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.
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 orange 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 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 flash 10 times. (If bulbs are
not installed, 10 clicks can be heard.) See page 21.
