Chamberlain 3585S 3/4 HP Figure, Figure, SENSORS, SENSORS, TROUBLESHOOTING THE SAFETY REVERSING, ALIGNING THE SAFETY REVERSING SENSORS, MOUNTING AND WIRING THE SAFETY REVERSING

MOUNTING AND WIRING THE SAFETY REVERSING			Figure 5
SENSORS
				Wing Nut
• Slide a 1/4"-20x1/2" carriage bolt head into the slot on
				1/4"-20
	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).		Carriage Bolt
•	Finger tighten the wing nuts.		1/4"-20x1/2"	Lens
•	Run the wires from both sensors to the opener. Use		TROUBLESHOOTING THE SAFETY REVERSING
	insulated staples to secure wire to wall and ceiling.
			SENSORS
•	Strip 7/16" (11 mm) of insulation from each set of wires.
			1. If the sending eye indicator light does not glow steadily
	Separate white and white/black wires sufficiently to
			after installation, check for:
	connect to the opener quick-connect terminals. Twist
			• Electric power to the opener.
	like colored wires together. Insert wires into
			• A short in the white or white/black wires. These can
	quick-connect holes: white to white and white/black to
	grey (Figure 6). To release or insert wire, push in tab		occur at staples, or at opener connections.
	with screwdriver tip.		• Incorrect wiring between sensors and opener.
ALIGNING THE SAFETY REVERSING SENSORS			• A broken wire.
• Plug in the opener. The indicator lights in both the			2. If the sending eye indicator light glows steadily but the
	sending and receiving eyes will glow steadily if wiring		receiving eye indicator light doesn’t:
	connections and alignment are correct.		• Check alignment.
The sending eye amber indicator light will glow regardless			• Check for an open wire to the receiving eye.
of alignment or obstruction. If the green indicator light in			3. If the receiving eye indicator light is dim, realign either
the receiving eye is off, dim, or flickering (and the invisible
			sensor.
light beam path is not obstructed), alignment is required.
			NOTE: When the invisible beam path is obstructed or
•	Loosen the sending eye wing nut and readjust, aiming
			misaligned while the door is closing, the door will reverse.
	directly at the receiving eye. Lock in place.
			If the door is already open, it will not close. The opener
•	Loosen the receiving eye wing nut and adjust sensor
			lights will blink 10 times. See page 16.
	until it receives the sender’s beam. When the green
	indicator light glows steadily, tighten the wing nut.
Figure 6			Connect Wire to
			Opener Quick-Connect Terminals
	Bell Wire	Finished
		Ceiling
			1.	Strip wire 7/16"
		Bell Wire		(11 mm) 7/16"
				(11 mm)
			2.	Twist like colored
				wires together
			3. To release or insert
				wire, push in tab with
				screwdriver tip

Red White Grey

Safety Reversing Sensor Quick-Connect Terminals

Invisible Light Beam

Protection Area

Safety Reversing Sensor

18