Invisible Light Beam
Protection Area
Sensor
Sensor
Bell Wire
Bell Wire
Finished
Ceiling
OPENER TERMINAL SCREWS
Sensor
Connections
Door Control
Connections
(dotted line)
1
2
3
Connect Wire to
Terminal Screws
22
Hex Bolt
1/4-20 x 1-1/2"
"C" Wrap
Sensor
with Wire
Wing
Nut
Indicator
Light
Figure 6
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 20.
Figure 7
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 6).
• 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 terminal screws: white
to 2 and white/black to 3 (Figure 7).
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
green 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.
