Chamberlain LC-36A User manual

LiftMaster
845 Larch Avenue
Elmhurst, IL 60126-1196
Model LC-36A
LiftMaster®Light Curtain

2
Light Curtain
Receiver
Light Curtain
Transmitter
12" (30.5 cm) minimum
above the photoelectric
sensors and away from
the door
Primary Monitored
Entrapment Protection Device
(Photoelectric Sensors)
Secondary entrapment protection ONLY
Primary entrapment protection
6" (15 cm) maximum
above the floor
and away from the door
Receiver
Transmitter
To prevent possible SERIOUS INJURY or DEATH from a closing door:
• Be sure to DISCONNECT POWER to the operator BEFORE installing
the Light Curtain.
• The door MUST be in the fully opened or closed position BEFORE
installing the Light Curtain.
• Correctly connect and align the Light Curtain transmitter and receiver.
• The Light Curtain is for use with LiftMaster®Commercial Doors. Use
with ANY other product voids the warranty.
• DO NOT use this product for the protection of dangerous machinery
or in explosive atmospheres or radioactive environments. Use ONLY
specific and approved types of devices for such applications.
• The Light Curtain MUST be installed ONLY by authorized and fully
trained personnel.
• LiftMaster Monitored Entrapment Protection devices are required in
addition to the Light Curtain. The Light Curtain may NOT be used as
the sole entrapment protection device for ANY entrapment zone.
IMPORTANT INFORMATION ABOUT THE LIGHT CURTAIN
LiftMaster®Light Curtain (Model LC-36A) is an ancillary entrapment protection device used with sectional and rolling doors that is designed with 8
optical sensors that form 22 total invisible light beams. These light beams create a cross-pattern or netting effect for maximum protection against
entrapment. When properly connected and aligned, the Light Curtain will detect an obstruction in the path of the light beams. If an obstruction breaks
any light beam while the door is closing, the operator will stop and reverse to the full open position. The invisible light beam must be unobstructed. No
part of the door (or door tracks, springs, hinges, rollers or other hardware) may interrupt the light beam while the door is closing.
The Light Curtain Transmitter must be installed facing the Light Curtain Receiver across the entrapment zone, 12" (30.5 cm) above the primary
monitored entrapment protection device. The minimum installation width is 3 feet (.91 m) and the maximum width is 33 feet (10 m).
INTRODUCTION

3
CARTON INVENTORY
SPECIFICATIONS
Optical
Operating range: ............................................3 - 33 feet (.91 - 10 meters)
Coverage area: ............................................. 36" (91.4 cm) detection zone
Number of optical sensors:......................................................................8
Number of invisible light beams:............................................................22
Receiver LED:................................................................................... Green
Transmitter LED:............................................................................. Amber
Electrical
Current Draw................................................................................... 40 mA
Supply voltage: .....................................................18 to 30 volts AC or DC
Output Type: ......Solid-state Relay, Normally Open (N.O.) when energized
Mechanical
Housing material:...................................................... Aluminum, anodized
Cable length:...............................................................................6'6" (2m)
Enclosure rating:...........................................................................NEMA 4
Operating temperature range: .............- 40°F to +140°F (- 40°C to +60°C)
Storage temperature range: ............... - 40°F to +185°F (- 40°C to +85°C)
Dimensions
Light Curtain Receiver
Mounting Brackets (4)
Light Curtain Transmitter
Red cable end
Green LED
Black cable end
Amber LED
Optical Sensors (8)
2' 9.5"
(86.1 cm)
.2" (5 mm)
.27" (7 mm)
LED
3' 8.25"
(112 cm)
1' 6.23"
(46.3 cm)
.47" (12 mm)
44" (111.8 cm) length with 36" (91.4 cm) detection zone
APPLICATION
The Light Curtain is compatible with LiftMaster Heavy, Standard, and
Medium Duty Logic, FDC, FDCL, FDOA, FDOB, and Egress Commercial
Door Operators. The Light Curtain is approved for track mounting. The
Light Curtain is for indoor use only but may be installed in areas exposed
to rain or moisture.
INTRODUCTION
The images in this document are for reference only and your product may look different.
ACCESSORIES
Conduit Kit............................................................................... OES-COND
Conduit kit with 2 junction boxes and 2 flexible cables.
Plug-In Power Supply ...............................................................100MAPS
For medium-duty LiftMaster commercial door operators with low current
capability. Also for use with Logic operators for additional power to
operate the Light Curtains.
Not Shown
• Screws, Washers, and Nuts with Nylon Insert
• Wire Connectors (6)
• Blocking Material
• Installation Manual

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Screw with
nylon washer
12" (30.5 cm)
minimum above the
photoelectric sensor
and away from
the door.
Light
Curtain
Mounting
Bracket
Light
Curtain
Light
Curtain
Photoelectric
Sensor
Nylon Nut
R
T
T
R
R= Receiving Light Curtain
T= Transmitting Light Curtain
Transmitter
Receiver
INSTALL ONE SET OF LIGHT CURTAINS
The mounting brackets must be securely fastened to a solid surface such as a wall framing. If installing the mounting brackets in masonry construction,
add a piece of wood at each location to avoid drilling extra holes in the masonry. NOTE: If the Light Curtain is installed with coil cord, the coil cord needs
to be secured so it will not interrupt the light beams.
1. Fasten the mounting brackets loosely to both Light Curtains with the screws provided.
2. Measure a minimum of 12 inches above the photoelectric sensors. Mark this location. The Light Curtain must be installed above this point.
3. Hold the Light Curtain up to the desired mounting location with the cable end pointing upward. Secure the bottom mounting bracket to the mounting
surface.
4. Make sure the Light Curtain is level and secure the upper mounting bracket to the mounting surface.
5. Tighten the screws to secure the Light Curtain to the mounting bracket.
6. Secure the other Light Curtain to the opposite side of the door following steps 2 - 5, making sure they are aligned.
7. Run wires to the operator.
8. Twist like colored wires together, brown to brown and blue to blue.
To prevent possible product damage and incorrect operation:
• NEVER scratch or paint the optical sensors.
• DO NOT drill ANY additional holes into the Light Curtain.
• Correctly connect and align the Light Curtain transmitter and receiver.
• DO NOT bend or twist the Light Curtain.
• Oil may damage the Light Curtain cable so contamination MUST be
avoided at ALL times.
• DO NOT mount the Light Curtain where sunlight or other external
infrared light sources will shine directly into the optical sensors of the
Light Curtain receiver. If necessary, switch the mounting side of the
Light Curtain transmitter and receiver.
INSTALLATION
INSTALL TWO SETS OF LIGHT CURTAINS ON THE SAME DOOR
Installing two sets of light curtains on the same door is recommended for high volume vehicle traffic.
1. Install the first set of Light Curtains on the door as described in the Install One Set of Light Curtains section.
2. Install the second set of Light Curtains above the first set. The black and white wires are wired in parallel and the blue and brown wires are wired in
parallel.

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J2
1 2 3 4 5 6 7 8 9 10 11 12
13 14 15 16 17 18 19 20 21 22 23 24
Do not run wiring in the same conduit with AC power. If installing on a medium duty LiftMaster commercial door operator, a 22 Vdc to 24 Vdc 100 mA
Plug-In Power Supply is required (refer to Accessories).
1. Disconnect power to the operator.
2. Connect the wires from the Light Curtain to the operator as illustrated below (follow the instructions according to your operator type).
3. Reconnect power to the operator.
24VAC
24VAC
LMEP:
EDGE:
OPEN
MAS
COMMON
TIMER
DEFEAT
POWER
TIMER
ENABLE
3-PHASE 1-PHASE
White (N.C.)
Black (COMMON)
Logic Board
D14
COM INTRLK STOP
LED
OPEN
CLOSE
LEARN
1
LMEP1 LMEP2
2 3 45 67
STOP CLOSE OPEN
Blue (-)
Brown (+) Logic Board Logic Board
Brown (+)
Blue (-)
White (N.C.)
Black (COMMON)
Black
(COMMON)
White (N.C.) Brown (+)
Blue (-)
HEAVY AND STANDARD DUTY LOGIC
(manufactured after 2010) MEDIUM DUTY LOGIC
(manufactured after 2010)
EGRESS OPERATOR
(model FDOB)
22 - 24 Vdc
100 mA
Plug-In
Power Supply
T
R
DOOR 1
DOOR 2
DOOR 3
R= Receiving Light Curtain
T= Transmitting Light Curtain
T
RT
R
Blocking Material
Screw
Mounting Bracket
Nut with
Nylon Insert
INSTALL MULTIPLE LIGHT CURTAINS ON ADJACENT DOORS
When installing more than one set of Light Curtains on adjacent doors, blocking material must be attached to the center Light Curtains (as shown) to
prevent cross-talk that could occur due to the close proximity of the Light Curtain sensors.
1. Thread mounting screws through the Light Curtain, blocking material and bracket, and loosely secure with locking nylon nut.
Follow steps 2 - 8 of the Install One Set of Light Curtains section.
POWER WIRING
INSTALLATION
Black/ White Black
J2
1 2 3 4 5 6 7 8 9 10 11 12
13 14 15 16 17 18 19 20 21 22 23 24
Logic Board
EGRESS OPERATOR
(model FDOA)
J2
1 2 3 4 5 6 7 8 9 10 11 12
13 14 15 16 17 18 19 20 21 22 23 24
White (N.C.) Black (COMMON)
Logic Board
Blue (-) to 1
Brown (+) to 2
EGRESS OPERATOR
(models FDC and FDCL)
Auxiliary Terminal Block
Brown (+) to 7
White (N.C.) Black (COMMON)
Blue (-) to 9
Auxiliary Terminal Block

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Periodically, check the following:
• Examine the optical sensors, ensuring they are clear of dirt and dust. If necessary, clean the front surface with a soft towel. Never use solvents,
cleaners or mechanically abrasive towels to clean the Light Curtains because this can damage the optical sensors. Avoid direct, high-pressure water
spray to clean the Light Curtains. Do not scratch the surface of the optical sensors when cleaning the Light Curtains.
• Check the mounting brackets, make sure they are securely fastened to the mounting surfaces. Tighten if necessary.
• Check that the Light Curtain cables are secured properly.
AMBER LED GREEN LED STATUS SOLUTION
OFF OFF No power Check wiring.
ON Blinks • Light Curtain receiver and transmitter are not aligned • Adjust the Light Curtains to correct alignment
• Obstructed light beam • Remove the obstruction
• Defective Light Curtain Receiver • Replace Light Curtain receiver and transmitter
(Model LC-36A)
TEST THE PRIMARY AND ANCILLARY ENTRAPMENT PROTECTION
It is the responsibility of the specifier, purchaser, and installer to ensure that, on completion, the installation of the Light Curtain complies with all
relevant federal, state, and local codes and regulations.
TEST THE LIGHT CURTAIN (ANCILLARY ENTRAPMENT PROTECTION)
1. With the door in the full open position, press the close button.
2. While the door is closing, obstruct any of the invisible light beams on the Light Curtain (the green LED on the Light Curtain Receiver will blink when
the invisible light beam is obstructed). The door should stop and reverse.
TEST THE PHOTOELECTRIC SENSORS (PRIMARY ENTRAPMENT PROTECTION)
1. With the door in the full open position place an obstruction in the path of the photoelectric sensors and press the close button. The operator should
not move.
2. Remove the obstruction and press the close button. The door should close.
ALIGN THE LIGHT CURTAINS
The Light Curtain transmitter and receiver must be aligned. When properly wired and aligned the amber and green LEDs will be ON. The amber LED is
located on the Light Curtain Transmitter and the green LED is located on the Light Curtain Receiver. If the amber and green LEDs are not on, refer to
the table below.
1. Open and close the door for one complete cycle to let the operator register the Light Curtain.
FINISH INSTALLATION
MAINTENANCE
NOTICE: To comply with FCC and/or Industry Canada (IC) rules, adjustment or modifications of this digital device are prohibited. THERE ARE NO OTHER USER SERVICEABLE PARTS. Any
changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
This device complies with Part 15 of the FCC rules and IC License-Exempt RSS Standard(s). Operation is subject to the following two conditions: (1) this device may not cause harmful
interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.