Lift-master CPSII-N4 User Manual

CDO Protector System

OWNER’S MANUAL

Models: CPS-N4, CPSII-N4 and CPS-LN4

Install the Commercial Protector System

IMPORTANT INFORMATION ABOUT THE SAFETY REVERSING SENSOR

Be sure power to the opener is disconnected.

When properly connected and aligned, the sensor will detect an obstacle in the path of its electronic beam. The sending eye (emitter with an amber indicator light) transmits an invisible light beam to the receiving eye (receiver with a green indicator light). If an obstruction breaks the light beam while the door is closing, the door will stop and reverse to full open position.

The units must be installed inside the garage so that the sending (emitting)and receiving eyes face each other across the door, no more than 6" (15 cm) above the floor. Either can be installed on the left or right of the door as long as the sun never shines directly into the receiving eye lens.

The brackets must be securely fastened to a solid surface such as the wall framing. If installing in masonry construction, add a piece of wood at each location to avoid drilling extra holes in masonry if repositioning is necessary.

The invisible light beam path must be unobstructed. No part of the garage door (or door tracks, springs, hinges, rollers or other hardware) may interrupt the beam while the door is closing. If it does, use a piece of wood to build out each sensor mounting location to the minimum depth required for light beam clearance.

Facing the door from inside the garage

This device is for use ONLY with LiftMaster Commercial Door Operators. Use on other than recommended equipment voids warranty, and may cause PROPERTY DAMAGE or SERIOUS PERSONAL INJURY. Read and follow all instructions.

Have door in full open or closed position and disconnect power to the garage door opener BEFORE installing the CDO Commercial Protector System

WARNING

Installation procedures are the

same for all door types.

—Left Side of Garage—

Safety Reversing Sensor

— Right Side of Garage —

Invisible Light Beam Protection Area

Safety Reversing Sensor

INSTALLING THE BRACKETS

IMPORTANT: Mount sensors 4"-6" (10-15 cm) above the floor.

Do not exceed 6" (15 cm). For sensing above 6" (15 cm), a second set of eyes would be required.

Floor or Wall Mount

For typical floor or wall mounting applications see Figure 1. If necessary, see Figure 2 for various assembly options to fit your application. Always use flat washer next to slot with radius (Figure 1). Insert track bolts through holes as shown. NOTE:

Putting track bolts in slots will prevent brackets from pivoting.

Attach assembly to wall with lag screws provided. To attach to concrete use concrete anchors (not provided).

Track Mount

To mount to door track use only one bracket per side (Figure 3).

To attach vertically to 2" x 4" wall stud and prevent wood from splitting, bracket may also be rotated with leg on top. Shown with leg on bottom.

CONDUIT CONNECTIONS

Use a liquid tight fitting (1/2" trade size) with sealing washer to connect to sensors. The sensors are provided with 36" long leads. We recommend the use of a liquid tight junction box near each sensor to make the connection to the sensor leads. (Figure 4). Use rigid or flexible liquid tight conduit (depending on local codes) from junction boxes to operator.

IMPORTANT: Use a minimum size 20 ga. copper wire for connection between the sensors and the operator.

WIRING CONNECTIONS

CPS-N4: See top of page 3

CPSII-N4: See middle of page 3

CPS-LN4: See page 4 and 5

See Wiring Connections

Sensor Beam 6" (15 cm) max. above floor

Invisible Light Beam Protection Area

Liquid Tight Conduit

Liquid Tight Junction Box

Figure 4

Hex Mounting Nut for Sensor

1/4"-20 x 5/8" Track Bolts

Figure 1 Wall or Floor Mounting

Lock Washer for Sensor

1/4" Flat Washer 1/4" Lock Washer 1/4"-20 Hex Nut

1/4" x 1-1/2" Lag Screws

1/4"-20 x 5/8" Track Bolts

Figure 2 Assembly Variations

Assemble to either side

1/2" Hole Spacing

2" Hole Spacing

Flip one bracket and assemble to either side

Figure 3 Door Track Mounting

1/4" Flat Washer 1/4" Lock Washer 1/4"-20 Hex Nut

1/4" Lock Washer 1/4"-20 Hex Nut

Door

1/4" Drill Holes

1/4"-20 x 5/8" Track Bolts

CPS-N4 Wiring Connections

CPSII-N4 Wiring Connections for use with Solid State Logic Control Board

CDO Sensing Edge Input

To Sending Eye (Emitter) and Receiving Eye (Receiver)

Commercial Protector Interface

24V

Common

Sensor Brown

Sensor Blue

NOTE: Logic 2 Board will have the same connection.

CPSII Option PCB

Terminals

Green Lights

Insert PCB into any or four slots

IR Protector Only

CDO Motherboard

A B C D E F G H

A B C D

E F

IR Protector and 4-Wire Fail Safe Door EdgeIR Protector and 2-Wire Fail Safe Door Edge

A B C D E F G H

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