Chamberlain GT User manual

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IINNDDUUSSTTRRIIAALLDDUUTTYYCCOOMMMMEERRCCIIAALLDDOOOORROOPPEERRAATTOORR
ogic
L 3
NOT FOR RESIDENTIAL USE
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PATENT PENDING
The Maintenance Alert System™ allows the
installer to set an internal Maintenance
Cycle Counter. The Logic 3 operator
incorporates a self-diagnostic feature built
into the (MAS) Maintenance Alert System
LED. An LED on the 3-button station will
signal when the set number of
cycles/months is reached or when the
operator requires immediate service.
This Operator Features
the Enhanced
Radio Receiver
Built on Board
Serial # Box
Installation Date
2 YEAR WARRANTY
315MHz
Visit www.LiftMaster.com to locate a professional installing dealer in your area.
INTENDED FOR PROFESSIONAL INSTALLATION ONLY
A SAFETY DEVICE IS HIGHLY RECOMMENDED
OOWWNNEERR’’SSMMAANNUUAALL

TABLE OF CONTENTS
2
SPECIFICATIONS
Carton Inventory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Operator Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Operator Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
PREPARATION
Track Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Powerhead Attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Trolley Carriage/Chain Attachment . . . . . . . . . . . . . . . . . . . . . . .5
INSTALLATION
Mount the Header Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Mount the Operator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Hang the Operator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Straight Arm Attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Entrapment Protection Accessories . . . . . . . . . . . . . . . . . . . . . .8
ADJUSTMENT
Limit Switch Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Emergency Disconnect System . . . . . . . . . . . . . . . . . . . . . . . . .10
Torque Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Brake Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
POWER & GROUND WIRING
Safety Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Power Wiring Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Ground Wiring Connections . . . . . . . . . . . . . . . . . . . . . . . . . . .12
CONTROL STATION WIRING & INSTALLATION
Control Wiring Connections . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Mounting Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
External Radio Wiring Connections . . . . . . . . . . . . . . . . . . . . . .13
DIAGRAMS
Standard Power & Control Connection Diagrams . . . . . . . . . . .14
1 Phase Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
3 Phase Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Logic Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
PROGRAMMING
Logic Control Pushbuttons . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Determine and Set Wiring Type . . . . . . . . . . . . . . . . . . . . . . . . .18
Failsafe Wiring Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Self-Monitoring Safety Device Options . . . . . . . . . . . . . . . . . . .19
Programming Remotes . . . . . . . . . . . . . . . . . . . . . . . . . . . .20-21
Maintenance Alert System (MAS) . . . . . . . . . . . . . . . . . . . . . . .22
Mid Stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Timer To Close . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23-24
Car Dealer Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
AUTOMATICALLY LEARNED PROGRAMMING
Auxiliary Reversal System/RPM Sensor . . . . . . . . . . . . . . . . . .25
Maximum Run Timer (MRT) . . . . . . . . . . . . . . . . . . . . . . . . . . .25
OPTIONAL PROGRAMMING
Red/Green Warning Light Card . . . . . . . . . . . . . . . . . . . . . . . . .26
Resetting Factory Defaults - Clearing Memory . . . . . . . . . . . . .26
MAINTENANCE
Maintenance Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Life of Operator Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
How to Order Repair Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
TROUBLESHOOTING
Diagnostic Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Troubleshooting Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Troubleshooting Radio Functionality . . . . . . . . . . . . . . . . . . . . .31
REPAIR PARTS
Electrical Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32-33
Repair Parts Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34-35
Control Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . .36
When you see these Safety Symbols and Signal Words on the
following pages, they will alert you to the possibility of serious
injury or death if you do not comply with the warnings that
accompany them. The hazard may come from something
mechanical or from electric shock. Read the warnings carefully.
When you see this Signal Word on the following pages, it will
alert you to the possibility of damage to your door and/or the
door operator if you do not comply with the cautionary
statements that accompany it. Read them carefully.
Mechanical
Electrical
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT
WARNINGWARNING
CAUTION
WARNING
WARNING
PRECAUCIÓN ADVERTENCIA
ADVERTENCIAADVERTENCIA
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT
WARNING
CAUTION
WARNINGWARNING
WARNING
PRECAUCIÓN ADVERTENCIA
ADVERTENCIAADVERTENCIA
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT
WARNING
CAUTIONCAUTION
WARNING
WARNING
PRECAUCIÓN ADVERTENCIA
ADVERTENCIAADVERTENCIA
IMPORTANT NOTES:
• BEFORE attempting to install, operate or maintain the operator,
you must read and fully understand this manual and follow all
safety instructions.
• DO NOT attempt installation, repair or service of your
commercial door and gate operator unless you are an
Authorized Service Technician.

Before beginning your installation check that all components were provided.
CARTON INVENTORY
OPERATOR DIMENSIONS
3
*
WEIGHTS AND DIMENSIONS
HANGING WEIGHT: 140 LBS.
DESCRIPTION
POWERHEAD ASSEMBLY
OWNER’S MANUAL AND CAUTION LABELS
HARDWARE BOX (INCLUDES FASTENERS, TRACK SPACERS, TROLLEY, DOOR ARM ASSEMBLY, FRONT IDLER AND HEADER
MOUNTING BRACKET)
3-BUTTON CONTROL STATION WITH LED
TROLLEY DRIVE CHAIN #41
NOTE: The tracks are shipped separately.
12-1/2"
17-9/16"
Door Height Plus 4 feet (minimum)
Highest point of door travel
17-1/2"
4"

4
OPERATOR SPECIFICATIONS
SAFETY
DISCONNECT: . . . . . . . . . . . . . . .Quick disconnect door arm for
emergency manual door operation.
SAFETY PHOTO EYES (Optional CPS-L):Through beam or retro
reflective devices used to provide non-contact safety protection.
SAFETY EDGE (Optional): Electric or pneumatic sensing device
attached to the bottom edge of door.
MOTOR
TYPE: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Continuous Duty
HORSEPOWER: . . . . . . . . . . . . . . . . . .1/2, 3/4, 1 and 1-1/2 HP
SPEED: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1725 RPM
VOLTAGE: .115/230V 1 Phase, 208/230/380/460/575V 3 Phase
CURRENT: . . . . . . . . . . . . . . . . . . . . . . . .See Motor Nameplate
ELECTRICAL
TRANSFORMER: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24Vac
CONTROL STATION: . . . . . . . . . . . . . . .NEMA 3-Button Station
Open/Close/Stop w/LED
WIRING TYPE: . . . . . . . . . . . . . . . . . . . . . . . . . . .C2 (Standard)
Momentary contact to OPEN and STOP, constant pressure to
CLOSE, plus wiring for sensing device to reverse and auxiliary
devices to open and close with open override. See pages 18 and
19 for optional wiring types and operating modes.
LIMIT ADJUST: . . . . . . . . .Linear driven, fully adjustable screw
type cams. Adjustable to 24'.
MECHANICAL
DRIVE REDUCTION: . . . . . . . . . . . . . .Primary: 20:1 Heavy duty
worm gear-in-oil-bath speed reducer
OUTPUT SHAFT SPEED: . . . . . . . . . . . . . . . . . . . . .113.5 RPM
DOOR SPEED: . . . . . . . . . . . .1' per second depending on door
BRAKE: . . . . . . . . . . . . . . . . . . . . .Solenoid actuated disc brake
BEARINGS: . . . . . . . . . . . . .Output Shaft Shielded Ball Bearing

Front Idler Assembly
Trolley Carriage
Take-Up Bolt
Reel Chain around Idler and
over Spacer Brackets
5
PREPARATION
TRACK ASSEMBLY
1. Using the 3/8"-16 x 3/4" bolts and flange hex nuts provided,
assemble the operator track by installing and tightening the
track spacer brackets. Position the spacers evenly over the
length of the track. NOTE: The nylon pad on the spacer
bracket should face up.
2. Using (2) 3/8"-16 x 1" bolts and lock washers, install the front
idler assembly to the second set of holes of one end of the
track. Refer to the illustration below.
3. Slide the trolley carriage onto the track so that the take-up bolt
will be toward the operator.
POWERHEAD ATTACHMENT
1. Position the track assembly on the frame of the powerhead so
that the motor side of operator is in back (away from door ).
2. Secure the operator in place by installing six 3/8"-16 x 3/4"
bolts in the three holes on each side of the frame and track.
3. Connect the track to the powerhead by fastening (2)
3/8"-16 x 3/4" bolts and nuts through the frame and the end
holes in track. Tighten all four bolts to secure the track to the
powerhead.
TROLLEY CARRIAGE / CHAIN ATTACHMENT
1. Attach the take-up bolt to the trolley carriage using 3/8"-16 hex
nuts and lock washer, as shown below.
2. Using one of the master links, attach the chain to the other
end of the trolley carriage. Reel the chain around the front idler
shaft, over the spacer brackets, back to the drive shaft
sprocket, and then to the take-up bolt on the carriage.
3. Using the other master link, attach the chain to the take-up
bolt and tighten to the desired chain tension.
CHAIN TENSION: With trolley positioned at either end of the
track, a properly adjusted chain will sag about 3" at the midpoint.
If necessary, remove links from the chain to achieve proper
adjustment.
Spacer Bracket
(Mounted Nylon Pad Side Up)
Operator Mounting
Holes (Three on each side)
To prevent possible SERIOUS INJURY or DEATH:
• DO NOT connect electric power until instructed to do so.
• If the door lock needs to remain functional, install an
interlock switch.
• ALWAYS call a trained professional door serviceman if door
binds, sticks or is out of balance. An unbalanced door may
not reverse when required.
• NEVER try to loosen, move or adjust doors, door springs,
cables, pulleys, brackets or their hardware, ALL of which are
under extreme tension and can cause SERIOUS personal
INJURY.
• Disable ALL locks and remove ALL ropes connected to door
BEFORE installing and operating door operator to avoid
entanglement.
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT
WARNING
CAUTION
WARNING
WARNINGWARNING
PRECAUCIÓN ADVERTENCIA
ADVERTENCIAADVERTENCIA
Master Link
Take-up Bolt
Roller Chain
Master Link
Hex
Nut
Straight Arm
Lockwasher
Hex Nut
Trolley Assembly
Trolley Carriage
Idler
Drive
Sprocket
Chain route and
direction path
Operator Chain Route

6
INSTALLATION
IMPORTANT NOTE: Before your operator is installed, be sure the door has been properly aligned and is working smoothly. The
operator may be wall mounted or mounted on a bracket or shelf. If necessary, refer to the preparation on page 5. Refer to the
illustrations and instructions below that suit your application.
MOUNT THE HEADER BRACKET
1. Close the door and mark the inside vertical centerline of the
door.
2. Extend the line onto the header wall above the door.
You can fasten the header bracket within 2 feet of the left or
right of the door center only if a torsion spring or center
bearing plate is in the way.
3. Open your door to the highest point of travel as shown. Draw
an intersecting horizontal line on the header wall 4" (10 cm)
above the high point. This height will provide travel clearance
for the top edge of the door.
MOUNT THE OPERATOR
1. Position the operator on the floor below the header bracket.
2. Position the front idler assembly against the header bracket.
3. Align the bracket holes and join with pivot shaft as shown.
Secure with cotterpins (provided).
4. Raise the operator to a horizontal position above the guide rails
and temporarily secure with a suitable rope, chain, or support
from the floor. Open door slowly, being careful not to dislodge
the temporary support. Using the door as a support, place a
level against the rail and shim the operator until it is horizontal.
Make sure that the operator is aligned with the center line of
the door.
4. Using the projected lines for location, mount a suitable wood
block or length of angle iron to the wall above the door
opening. Refer to the illustration below. This will provide a
mounting pad for the front header bracket of the operator. If
necessary reinforce the wall with suitable mounting brackets to
ensure adequate support of mounting pad. Using suitable
hardware, mount the (U-shaped) front header bracket to the
pad.
Door Travel
Projection
Carpenter’s
Level
High Point
of Travel
Header Wall
Header Bracket
Cotterpins
Pivot Shaft
3.5"
(8.89 cm) 1.75"
(4.45 cm)
4" (10.16 cm)
Min.
High Rise Point
Projection Line
Vertical Centerline of Door
Header Bracket Drill Pattern
Using the door as support, shim
operator to a horizontal position.
Guide
Rails
Operator Alignment

7
To avoid possible SERIOUS INJURY from a falling operator,
fasten it SECURELY to structural supports of the garage.
Concrete anchors MUST be used if installing ANY brackets
into masonry.
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT
WARNINGWARNING
CAUTION
WARNING
WARNING
PRECAUCIÓN ADVERTENCIA
ADVERTENCIAADVERTENCIA
HANG THE OPERATOR
1. The illustration below shows a typical method of hanging the
operator from the ceiling. Each installation may vary, but in all
cases side braces should be used for additional strength.
2. For mounting of the support brace(s) to the powerhead. Four
holes (clearance up to 3/8" bolts) are located on each side of
frame.
3. Check to make sure the track is centered over the door (or in
line with the header bracket if the bracket is not centered above
the door).
NOTE: If the operator is longer than 15' use of a mid-span
support is recommended.
STRAIGHT ARM ATTACHMENT
1. Fully close the door and move the trolley slider to within 2" of
the front idler.
2. Latch the straight door arm to the fixed roll pin in the trolley
carriage. Make sure the open side of notch on the arm faces
the doorway.
3. Attach the door bracket to the door arm using the 3/8"-16 x 1"
bolt and nylon locking nut provided. Leave the nut and bolt
loose enough to allow the two pieces to pivot freely.
4. Using 3/8" hardware provided, bolt the curved door arm to the
straight arm, aligning the mounting holes in such a way that
the door bracket pivot bolt will be in line with the top rollers on
the door.
5. Position the door bracket to the center line on the door. Using
suitable hardware, attach the door bracket to the door. Many
installations, except solid wood doors, will require additional
support for the door. Refer to the illustration below.
NOTE: At this time, ensure all bolts and lag screws are properly
secured.
INSTALLATION
Top Roller
Mid-Span
Support Brace
Powerhead
Support Brace
Curved
Door Arm
Straight Arm
Vertical Centerline of Door
Door Bracket
Pivot Bolt

8
ENTRAPMENT PROTECTION ACCESSORIES
(OPTIONAL)
PHOTO EYES AND SENSING EDGES
Sensing devices provided for door industry type operators with an
isolated normally open (N.O.) dry contact output are compatible
with your operator. This includes pneumatic and electric edges,
and through beam and retro reflective photo eyes. If you would
like to order or receive more information on safety devices, please
contact your local Authorized Dealer.
If not pre-installed by the door manufacturer, mount the sensing
edge on the door according to the instructions provided with the
edge. The sensing edge may be electrically connected by either
coiled cord or take-up reel.
Important Notes:
a. Proceed with Limit Switch Adjustments described below before
making any sensing edge wiring connections to operator.
b. Electrician must hardwire the junction box to the operator
electrical box in accordance with local codes.
WIRING
For wiring of your sensing device to the operator, refer to the
wiring diagrams provided on pages 14 and 15. See field
connection terminals identified as Reversing Device.
TAKE-UP REEL
Take-up reel should be installed 12" above the top of the door.
COIL CORD
Connect operator end of coil cord to junction box (not provided)
fastened to the wall approximately halfway up the door opening.
INSTALLATION
To prevent possible SEVERE INJURY or DEATH, install reversing
sensors when:
• The radio is used.
• The 3-button control station is out of sight of the door.
• Or ANY other control (automatic or manual) is used.
Reversing devices are recommended for ALL installations.
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT
WARNINGWARNING
CAUTION
WARNING
WARNING
PRECAUCIÓN ADVERTENCIA
ADVERTENCIAADVERTENCIA

9
ADJUSTMENT
To avoid SERIOUS personal INJURY or DEATH from
electrocution, disconnect electric power BEFORE manually
moving limit nuts.
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT
WARNING
CAUTION
WARNING
WARNINGWARNING
PRECAUCIÓN ADVERTENCIA
ADVERTENCIAADVERTENCIA
LIMIT SWITCH ADJUSTMENT
NOTE: Make sure the limit nuts are positioned between the limit
switches before proceeding with adjustments.
1. Depress retaining plate to allow nut to spin freely. After
adjustment, release plate and move nut back and forth to
ensure it is fully seated in slot.
2. To increase door travel, spin nut away from limit switch. To
decrease door travel, spin limit nut toward limit switch.
3. Adjust open limit nut so that door will stop in open position
with the bottom of the door even with top of door opening.
4. Repeat steps 1 and 2 for close cycle. Adjust close limit nut so
that the limit switch is engaged as door fully seats at the floor.
CLOSE OPEN
SAFETY
(Aux. Close) Limit Switch
CLOSE Limit Switch OPEN Limit Switch

10
EMERGENCY DISCONNECT SYSTEM
ADJUSTMENT
TO DISCONNECT DOOR FROM OPERATOR
The door should be in the fully closed position if possible. Pull
down on the emergency release handle (so that the trolley release
arm snaps into a vertical position) and lift the door manually. The
lockout feature prevents the trolley from reconnecting
automatically, and the door can be raised and lowered manually
as often as necessary.
TO RECONNECT DOOR ARM TO TROLLEY
Pull the emergency release handle toward the operator at an
angle so that the trolley release arm is horizontal. The trolley will
reconnect on the next UP or DOWN operation, either manually or
by using the door control or remote.
To prevent possible SERIOUS INJURY or DEATH from a falling
door or arm:
• DO NOT stand under the door arm when pulling the
emergency release.
• If possible, use emergency release handle to disengage
trolley ONLY when door is CLOSED. Weak or broken springs
or unbalanced door could result in an open door falling
rapidly and/or unexpectedly.
• NEVER use emergency release handle unless doorway is
clear of persons and obstructions.
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT
WARNINGWARNING
CAUTION
WARNING
WARNING
PRECAUCIÓN ADVERTENCIA
ADVERTENCIAADVERTENCIA
Emergency
Disconnect
Door Arm
Pull emergency release
handle straight down.
Emergency disconnect
will open.
Emergency
Disconnect
Door Arm
Lift free end of door arm
to trolley. Pull emergency
handle to allow arm to
engage roll pin. Release
handle. Emergency
disconnect will close.
NO EC
I
T
Header
Bracket Trolley
Track
Chain
Clevis Pin
Emergency
Disconnect
Straight
Door Arm
Assembly
Door
Bracket
Curved
Door Arm
Door Emergency
Release Handle

11
BRAKE ADJUSTMENT
A solenoid brake is standard on GT operators. The brake is
adjusted at the factory and should not need additional adjustment
for the the life of the friction pad.
Replace brake assembly when necessary. Refer to the illustration
for identification of components for the solenoid type brake
system.
TORQUE ADJUSTMENT
1. Loosen set screws of torque adjustment nut on the gear
reducer.
2. Back off toque nut until there is very little tension on the
belleville washers.
3. Tighten torque nut gradually until there is just enough tension
to permit the operator to move the door smoothly through a
complete open/close cycle, but to allow the reducer to slip if
the door is obstructed.
4. Re-tighten the set screw that is directly over the flat portion of
the shaft.
ADJUSTMENT
Torque Nut
Set Screws
Solenoid
Release Lever
Brake
Assembly
Brake Plate
Assembly

12
POWER WIRING & GROUND WIRING
To reduce the risk of SEVERE INJURY or DEATH:
• ANY maintenance to the operator or in the area near the
operator MUST NOT be performed until disconnecting the
electrical power and locking-out the power via the operator
power switch. Upon completion of maintenance the area MUST
be cleared and secured, at that time the unit may be returned
to service.
• Disconnect power at the fuse box BEFORE proceeding.
Operator MUST be properly grounded and connected in
accordance with local electrical codes. The operator should be
on a separate fused line of adequate capacity.
• ALL electrical connections MUST be made by a qualified
individual.
• DO NOT install ANY wiring or attempt to run the operator
without consulting the wiring diagram. We recommend that
you install an optional reversing edge BEFORE proceeding with
the control station installation.
• ALL power wiring should be on a dedicated circuit and well
protected. The location of the power disconnect should be
visible and clearly labeled.
• ALL power and control wiring MUST be run in separate
conduit.
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT
WARNING
CAUTION
WARNING
WARNINGWARNING
PRECAUCIÓN ADVERTENCIA
ADVERTENCIAADVERTENCIA
GROUND WIRING CONNECTIONS
1. Connect earth ground to the chassis ground screw in the
electrical box enclosure.
2. Use same conduit entry into the electrical box as the power
wiring.
IMPORTANT NOTE: This unit must be properly grounded. Failure
to properly ground this unit could result in electric shock and
serious injury.
POWER WIRING CONNECTIONS
1. Connect power wires coming from the main to the captive
terminal block in the electrical box enclosure marked with the
label. All power and control wiring must be run in separate
conduit in accordance with local electrical codes.
2. Be sure to run all power wires through the conduit hole in the
electrical box enclosure marked with the label shown below.
NOTE: Must use #14 AWG or thicker wire for power wiring.
ON THREE PHASE MACHINES ONLY: Incorrect phasing of the
power supply will cause the motor to rotate in the wrong
direction. To change motor rotation, exchange incoming power
leads L1 and L2.
Single Phase Power Wiring
Line Power
115/230 Vac
Single Phase
Three Phase Power Wiring
Line Power
208/230/380/460/575 Vac
Three Phase
Hot
Neutral
Ground
Phase 1
Phase 2
Phase 3

13
CONTROL STATION WIRING AND INSTALLATION
CONTROL WIRING CONNECTIONS
1. Connect control wires to the P1 terminal block located on the
logic board as shown.
2. Connect conduit with all control wires through the conduit
hole in the electrical box enclosure marked with the label
shown below.
3. Apply power to the operator. Press OPEN push button and
observe direction of door travel and then Press the STOP
button.
If door did not move in the correct direction, check for improper
wiring at the control station or between operator and control
station. NOTE: In “Diag” mode the 3-button control station can be
tested to verify correct wiring of Open, Close and Stop buttons
without moving the door.
If the door moves in the wrong direction and or the limits move
in the wrong direction, simply move the motor direction jumper
located on the logic board from the factory default setting (STD)
to the (REV) pins. This will change the motor rotation as well as
the functional position of the OPEN and CLOSE limit switch’s.
Then relocate the safety limit switch (SLS) only to the opposite
side with the new functional close limit location. Orient the arm
(lever) of the limit switch away from the center. NOTE: The motor
direction change is not available on the DJ and DH models.
EXTERNAL RADIO WIRING CONNECTIONS
On all models a radio terminal bracket marked R1 R2 R3 is
located on the outside of the electrical enclosure. In B2 mode the
operator will then open a fully closed door, close a fully open
door, stop an opening door, and reverse a closing door from the
radio remote. In TS control wiring the operator will only open the
door or reset the timer to close. However, for additional door
control from a 3-button remote, a commercial three-channel radio
receiver (with connections for OPEN/CLOSE/STOP) is
recommended.
NOTE: If an external radio receiver is being used in place of the
built-in receiver, remove or disconnect the coaxial cable from the
logic board.
MOUNTING INSTRUCTIONS
1. Mount WARNING NOTICE beside or below the control station.
2. Mount MAINTENANCE ALERT label to either side of control
station.
3. Mount control station(s) within line of sight of door(s).
CONTROL WIRING
USE COPPER WIRE ONLY 40-10032B
POWER
TIMER
DEFEAT
MAS
4
TS
DIAG
ROG
24V
AC
24V
AC
TIMER
DEFEAT
CMN
MAS
EYES
EDGE
OPEN
CLOSE
STOP
CMN
SBC
11
10
9
14
13
12
8
7
6
5
4
3
2
1
CLOSE
STOP
OPEN
EDGE
EYES
P1
D34 F1
D1 E2)
AILSAFE
D23
D15
R8
C18
D8
U7
R31
D31
C3
Ø
D7
D6
D5
D4C25
C17
P1
Ø
D2 Ø
D21
D13
D14
D28
D17
D19
SBC
24V
AC
24V
AC
TIMER
DEFEAT
CMN
MAS
EYES
EDGE
OPEN
CLOSE
STOP
CMN
SBC
11
10
9
14
13
12
8
7
6
5
4
3
2
1
24 VOLT AC
24 VOLT AC
TIMER DEFEAT
COMMON
MAINTENANCE ALERT SYSTEM
PHOTO EYES (LiftMaster Only)
REVERSE
OPEN
CLOSE
STOP
COMMON
INTERLOCK
INTERLOCK
SINGLE BUTTON CONTROL
OR IN THE AREA NEAR THE OPERATOR MUST
NOT BE PERFORMED UNTIL DISCONNECTING
THE ELECTRICAL POWER AND LOCKING-OUT
THE POWER VIA, THE MAIN DISCONNECT
SWITCH. UPON COMPLETION OF
MAINTENANCE THE AREA MUST BE CLEARED
AND SECURED, AT THAT TIME THE UNIT MAY
BE RETURNED TO SERVICE.
Maintenance
Alert SystemTM
If light is Flashing
Rapidly, it is time
for routine door
maintenance.
If light is Flashing
Slowly, followed
by a pause, call for
immediate service.
Service every
cycles/months
4'
Approximate
Control
Station
Optional
Controls
To prevent possible SEVERE INJURY or DEATH, install reversing
sensors when:
• The radio is used.
• The 3-button control station is out of sight of the door.
• Or ANY other control (automatic or manual) is used.
Reversing devices are recommended for ALL installations.
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT
WARNINGWARNING
CAUTION
WARNING
WARNING
PRECAUCIÓN ADVERTENCIA
ADVERTENCIAADVERTENCIA

14
STANDARD POWER & CONTROL CONNECTION DIAGRAMS
Open
Close
Stop
Maintenance
Alert LED
Open/Close
Single Button
(WH)(RD)
Sensing Edge
CPS-L &
CPS-LN4
Timer Defeat
Switch
R1
R2
R3
Radio Control
(24V DC only)
Neutral
Hot
Gnd
Remove Jumper
To Install External
Interlock
Single Phase Power Wiring Three Phase Power Wiring
Phase 1
Phase 2
Phase 3
Gnd
Line Power
208/230/380/460/575 Vac
Three Phase
Line Power
115/230 Vac
Single Phase
3-Button
Station
OPEN
CLOSE
STOP

15
U1
POWER
TIMER
DEFEAT
MAS
4
MRT
1RADIO
MID
2
TIMER
TIMER ENABLE
T TS
FSTSE2
RELAY A RELAY B
D1 DIAG
C2
B2 PROG
3
24V
AC
24V
AC
TIMER
DEFEAT
CMN
MAS
EYES
EDGE OPEN
CLOSE
STOP
CMN
SBC
11 10
9
14 13 12
8 7 6 5 4 3 2 1
CLOSE
STOP
OPEN
EDGE
OLS
MID
SLS
MOTOR
DIRECTION
CLS
D25 D24 D26 D27
D36
C77
C73
C54
C78
L1
L5
P6
D35
S8
D16
P7
EYES
K3
P1
D34 F1
FAILSAFE (B2 C2 D1 E2)
NONFAILSAFE
D23 D15
D1
D22
R8
J1
X1
E1
R29
C18
D8
U7
R31
D31
C3
Ø
D7 D6 D5 D4C25
C17
C11
D3
Ø
2 P1
Ø
P4
Ø
14LG
Ø
657–A
Ø
14GP
Ø
657–A
J3
ØØ
D2
Ø
D21 D13 D14 D28 D17 D19
SBC
C71
®
Remove Jumper
To Install External
Door Interlock
3-Button
Station
Maintenance
Alert LED
(RD) (WH)
Open
Close
Stop
Open/Close
Single Button
Sensing
Edge
CPS-L & CPS-LN4
Hoist Interlock
When Present
TMR DEF
SWITCH
MOV
MOV
(YE) (BL)
(YE)
(OR)
(WH)
(YE)
(PU)
(WH)
(RD)
(GY)
(YE)
(RD)
(WH)
(PU)
(YE)
(OR)
(GY)
(OR) (PU)
(WH)
(WH)
(WH)
(WH)
(WH)
(PU)
(YE)
(WH)
(WH)
(WH)
(WH)
(YE)
115 / 230 VOLT 1PH. POWER IN
hot
neutral
ground
(BK)
COM 120
VAC
120 / 240
VAC
+24 VAC -24 VAC
See Motor
Connections
8
0 1
4
6
2
6
2
8
4
0 1
COIL
COM
NO
C
B A
(WH)
(BL) (GY)
(YE)
(BR)
(GY)
See Motor
Connections
NOTE: Lock Sensor is provided on Models
DJ and DH only, red wire from main harness
connects to NC on Bypass L/S and to NO on
Lock Sensor switch. White wires connect the
COM on Bypass L/S and Lock Sensor switch to
NC on Open L/S.
OPEN
CLOSE
STOP
NOTE: Gray (GY) and purple (PU) motor wires are reversed
for H and HJ right hand models and all GH and J models.
115V MOTOR CONNECTION 230V MOTOR CONNECTION
(WH)
(WH)
(WH)
(RD) (PU)
(YE)
COM
NO
NC
NO
NC
COM
NO
NC
COM
OPEN L/S
NO
NC
LOCK
SENSOR
(see note at left)
CLOSE L/S
SAFETY L/S
(WH) (RD)
NO
NC
COM
BYPASS
L/S
(WH)
(RD)
(WH)
(RD)
(YE)
(GY)
(WH)
(OR)
(YE)
1 2 3 4
RPM Board
Radio
R1 R2 R3
L3 L2 L1
LOGIC (VER. 3.0) 1 PHASE WIRING DIAGRAM

16
U1
POWER
TIMER
DEFEAT
MAS
4
MRT
1RADIO
MID
2
TIMER
TIMER ENABLE
T TS
FSTSE2
RELAY A RELAY B
D1 DIAG
C2
B2 PROG
3
24V
AC
24V
AC
TIMER
DEFEAT
CMN
MAS
EYES
EDGE OPEN
CLOSE
STOP
CMN
SBC
11 10
9
14 13 12
8 7 6 5 4 3 2 1
CLOSE
STOP
OPEN
EDGE
OLS
MID
SLS
MOTOR
DIRECTION
CLS
D25 D24 D26 D27
D36
C77
C73
C54
C78
L1
L5
P6
D35
S8
D16
P7
EYES
K3
P1
D34 F1
FAILSAFE (B2 C2 D1 E2)
NONFAILSAFE
D23 D15
D1
D22
R8
J1
X1
E1
R29
C18
D8
U7
R31
D31
C3
Ø
D7 D6 D5 D4C25
C17
C11
D3
Ø
2 P1
Ø
P4
Ø
14LG
Ø
657–A
Ø
14GP
Ø
657–A
J3
ØØ
D2
Ø
D21 D13 D14 D28 D17 D19
SBC
C71
®
Remove Jumper
To Install External
Door Interlock
3-Button
Station
Maintenance
Alert LED
(RD) (WH)
Open
Close
Stop
Open/Close
Single Button
Sensing
Edge
CPS-L & CPS-LN4
Hoist Interlock
When Present
TMR DEF
SWITCH
MOV
MOV
NOTE: Lock Sensor is provided on Models
DJ and DH only, red wire from main harness
connects to NC on Bypass L/S and to NO on
Lock Sensor switch. White wires connect the
COM on Bypass L/S and Lock Sensor switch to
NC on Open L/S.
(WH)
(WH)
(WH)
(RD) (PU)
(YE)
COM
NO
NC
NO
NC
COM
NO
NC
COM
OPEN L/S
NO
NC
LOCK
SENSOR
(see note at left)
CLOSE L/S
SAFETY L/S
(WH) (RD)
NO
NC
COM
BYPASS
L/S
(WH)
(RD)
(YE) (BL)
(YE)
(OR)
(WH)
(YE)
(PU)
(WH)
(RD)
(GY)
(YE)
(RD)
(WH)
(PU)
(YE)
(OR)
(GY)
(OR)
(PU)
(WH)
(WH)
(WH)
(WH)
(WH)
(WH)
(GY) (YE)
(WH)
(GY)
(WH)
(WH)
(WH)
(WH) (WH)
(PU)
(BR)
(BR)
(YE)
208/ 230 / 380 / 460 VOLT 3PH. POWER IN
(BK)
COM 120
VAC 240 / 460 /
575 VAC
+24 VAC -24 VAC
COIL COIL
COM COM
NO NO
See Motor
Connections
See Motor
Connections
8
0 1
4
62
62
84
0 1 A
B
C
D
OPEN
CLOSE
STOP
NOTE: Gray (GY) and purple (PU) motor
wires are reversed for H and HJ right hand
models and all GH and J models.
575V BRAKE
(WHEN PRESENT)
1
2
3
(GY)
(BR)
(PU)
(BR)
(BL/BK)
(BL/BK)
(YE)
230V BRAKE
(WHEN PRESENT)
J
T4 T7 T1
T5 T8 T2
T6 T9 T3
(GY)
(BR)
(PU)
(BR)
(YE)
J
230V BRAKE
(WHEN PRESENT)
J
T4 T7 T1
T5 T8 T2
T6 T9 T3
(GY)
(BR)
(PU)
(BR)
(YE)
J
208/230V MOTOR CONNECTION 460V MOTOR CONNECTION 575V MOTOR CONNECTION
(WH)
(RD)
(YE)
(GY)
(WH)
(OR)
(YE)
1 2 3 4
RPM Board
Radio
R1 R2 R3
L3 L2 L1
LOGIC (VER. 3.0) 3 PHASE WIRING DIAGRAM

17
LOGIC BOARD
U1
POWER
TIMER
DEFEAT
MAS
4
MRT
1RADIO
MID
2
TIMER
TIMER
ENABLE
T TS
FSTSE2
RELAY A
RELAY B
D1 DIAG
C2
B2 PROG
3
24V
AC
24V
AC
TIMER
DEFEAT
CMN
MAS
EYES
EDGE
OPEN
CLOSE
STOP
CMN
SBC
11
10
9
14
13
12
8
7
6
5
4
3
2
1
CLOSE
STOP
OPEN
EDGE
OLS
MID
SLS
MOTOR DIRECTION
REV STD
CLS
D25
D24
D26
D27
D36
C77
C73
C54
C78
L1
L5
P6
D35
S8
D16
P7
EYES
K3
P1
D34 F1
FAILSAFE (B2 C2 D1 E2)
NONFAILSAFE
D23
D15
D1
D22
R8
J1
X1
E1
R29
C18
D8
U7
R31
D31
C3
Ø
D7
D6
D5
D4C25
C17
C11
D3
Ø 2 P1
Ø
P4
Ø 14LG Ø 657–A Ø 14GP Ø 657–A
J3
ØØ
D2 Ø
D21
D13
D14
D28
D17
D19
CONTACTOR/3 PH 
SINGLE PHASE 
SBC
C71
®
Wiring Type
Selector Dial
Failsafe Switch
Maximum Run
Timer Button
Auxiliary Board
Connections
Programmed Chip
Mid Stop Learn Button
Timer to Close
Learn Button
Radio Learn Button
Open Button
Close Button
Stop Button
Control Wiring
Terminal Block
Motor Direction
Jumper
Maintenance Alert
System Button for
Programming
Single Phase and
Three Phase Jumper

18
PROGRAMMING
DETERMINE AND SET WIRING TYPE
Read the descriptions of the different wiring types to determine
which setting will be correct for each application.
SET THE SELECTOR DIAL TO THE DESIRED WIRING MODE:
NOTE: For failsafe wiring you must also set failsafe switch to
FAILSAFE.
TYPE
C2 Momentary contact to open and stop with constant
pressure to close, open override plus wiring for sensing
device to reverse. Programmable mid stop available with
this wiring type. Compatible with 3-Button Station and
1-Button Station.
B2 Momentary contact to open, close and stop, plus wiring
for sensing device to reverse and auxiliary devices to
open and close with open override. Programmable mid
stop available with this wiring type. Compatible with
3-Button Station, 1-Button Station and 1- and 3-Button
Remote Controls.
D1 Constant pressure to open and close with wiring for
sensing device to stop. Compatible with 2-Button.
E2 Momentary contact to open with override and constant
pressure to close. Release of close button will cause
door to reverse (roll-back feature) plus wiring for
sensing device to reverse. Compatible with 3-Button
Station.
LOGIC CONTROL PUSHBUTTONS OPEN, CLOSE, STOP
Open, Close and Stop buttons are mounted directly on the logic
board. Thus, making it easy to program as well as have door
control at the electrical box. Either the stop control or a jumper
must be wired between terminals 4 and 5 for the on board push
buttons to function.
NOTE: Refer to logic board illustration on page 15 for all
component locations. Before programming the logic board, set
the operators open and close limits. LEDs on the logic board are
provided to assist setting the limits. As each limit is activated the
corresponding LED will light up. The abbreviations are Open
Limit Switch (OLS), Close Limit Switch (CLS) and Sensing Limit
Switch (SLS). Refer to page 8 for limit switch adjustment
instructions.
SELECTOR DIAL
FAILSAFE SWITCH

19
PROGRAMMING
FAILSAFE WIRING TYPES
TYPE
TS Momentary contact to open, close, and stop with
open override and Timer To Close. Every device that
causes door to open, including a reversing device,
activates the Timer To Close. Auxiliary controls can
be connected to open input to activate the Timer To
Close. If the timer has been activated, the open
button and radio control can recycle the timer. The
stop button will deactivate the Timer To Close until
the next command input. The Timer To Close will
function from the programmable mid stop with this
wiring type. Compatible with 3-Button Station,
1-Button Station and 1- and 3-Button Remote
Controls. (NOTE: Requires self monitoring photo
eyes to operate.)
TMomentary contact to open, close, and stop, with
open override and Timer To Close. Every device that
causes the door to open, except a reversing device,
activates the Timer To Close. Auxiliary controls can
be connected to open input to activate the Timer To
Close. If the Timer To Close has been activated, the
open button and radio control can recycle the timer.
The stop button will deactivate the timer until the
next command input. The Timer to Close will
function from the programmable mid stop with this
wiring type. Compatible with 3-Button Station,
1-Button Station and 1- and 3-Button Remote
Controls. (NOTE: Requires self monitoring photo
eyes to operate.)
FSTS Momentary button contact for open, close and stop
programming. Radio controls allowing open, close
and stop. User set mid stop. User set Timer To
Close. The single button station opens the door to
the full open limit bypassing the mid stop and
activates the Timer To Close, putting the operator in
TS mode until the door reaches the down limit, or
is stopped in travel. At which time the operator
enters the B2 mode. Compatible with 3-Button
Station, 1-Button Station and 1- and 3-Button
Remote Controls. (NOTE: Requires self monitoring
photo eyes to operate this feature/wire type.)
C2 Failsafe Same functions as C2. Self Monitoring safety device
must be installed to operate door for each of the
following failsafe wiring types. See Self Monitoring
Safety Device Options. Compatible with 3-Button
Station, 1-Button Station and 1- and 3-Button
Remote Controls.
SELF-MONITORING SAFETY DEVICE OPTIONS
To use the operator in any of the Failsafe wiring modes, or Timer
To Close wiring modes (TS, T, FSTS), a self monitoring safety
device or CPS3 card with photo eyes or safety edges must be
installed.
RECOMMENDED SELF-MONITORING SAFETY DEVICES:
CPS-L NEMA 1 Direct Connect Eyes
CPS-LN4 NEMA 4 Direct Connect Eyes
IMPORTANT NOTES:
1. External interlocks may be used with all functional modes.
2. Auxiliary devices are any devices that have only dry contacts.
Examples: photocell, loop detector, pneumatic or electrical
treadles, radio controls, one button stations, pull cords, etc.
3. Open override means that the door may be reversed while
closing by activating an opening device without the need to use
the stop button first.
B2 Failsafe Same functions as B2. Self Monitoring safety device
must be installed to operate door for each of the
following failsafe wiring types. See Self Monitoring
Safety Device Options. Compatible with 3-Button
Station, 1-Button Station and 1- and 3-Button
Remote Controls.
D1 Failsafe Same functions as D1. Self Monitoring safety
device must be installed to operate door for each of
the following failsafe wiring types. See Self
Monitoring Safety Device Options. Compatible with
2-Button Station and 2-Button Remote Control.
E2 Failsafe Same functions as E2. Self Monitoring safety device
must be installed to operate door for each of the
following failsafe wiring types. See Self Monitoring
Safety Device Options. Compatible with 3-Button
Station and 3-Button Remote Control.

20
SINGLE BUTTON REMOTE CONTROL PROGRAMMED
AS A SINGLE BUTTON CONTROL (SBC)
This function programs a remote control as a wireless single
button control. This function will work in the following modes:
In B2 mode, operation is OPEN/STOP/CLOSE/REVERSE/STOP.
In C2 mode, operation is OPEN/STOP/constant pressure to
CLOSE/STOP on release.
In T and TS modes, operation is
OPEN/STOP/CLOSE/REVERSE/STOP and Timer to Close
start/refresh. NOTE: If Car Dealer mode is enabled, SBC will be
open only stopping at the Open Mid-Stop.
In FSTS mode, operation is OPEN with Timer to Close
start/refresh only, bypassing a programmed Open Mid-Stop.
1. Press and release the RADIO button on the logic board (LED
will light).
2. Press and release the SBC externally wired button or TIMER on
the logic board (LED flashes rapidly and then remains on
solid).
3. Press and hold the remote control button until the LED flashes
rapidly. The LED will then remain on solid after releasing.
4. Press and release the RADIO button on the logic board (LED
flashes rapidly and then turns off). The programming mode is
exited if no activity is performed within 30 seconds.
NOTE: Requires self-monitoring photo eyes when using constant
pressure to close (wiring C2, D1 and E2 ).
ERASING REMOTE CONTROLS
Press and hold the RADIO button on the logic board until the
RADIO LED flashes rapidly (approximately 5 seconds).
All remote controls will be erased.
STANDARD SINGLE BUTTON REMOTE CONTROL
Built in 3-channel, 315MHz radio receiver allows you to add
as many as 23 Security✚®remote controls or dip switch
remote controls.
PROGRAMMING REMOTE CONTROLS
STANDARD SINGLE BUTTON REMOTE CONTROL
1. To enter programming, press and release the RADIO button on
the logic board (LED will light).
2. Press and hold the remote control button until the LED flashes
rapidly, then release remote control button. The LED will then
remain on solid after releasing the button. Repeat to add
additional remote control(s).
3. Press and release the RADIO button to complete the
programming. The programming mode is exited if no activity is
performed within 30 seconds.
NOTE: Single button remote control is not supported with D1 and
E2 wiring modes.
PROGRAMMING
L
i
f
t
M
a
s
t
e
r
U1
MRT
1RADIO
MID
2
T
E2
RELA
RELA
D1
C2
B2
OLS
MID
SLS
REV
CLS
D25
D24
D26
D27
D36
C77
C73
C54
C78
L1
L5
P6
D35
D16
P7
K3
FAILSAF
X1
E1
R29
C11
D3
Ø 2
P4
Ø 14LG Ø 6
C71
®
RADIO
NOTICE: To comply with FCC and or Industry Canada (IC) rules, adjustment or modifications of this
receiver and/or transmitter are prohibited, except for changing the code setting or replacing the
battery. THERE ARE NO OTHER USER SERVICEABLE PARTS.
Tested to Comply with FCC Standards FOR HOME OR OFFICE USE. 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.
To prevent possible SEVERE INJURY or DEATH, install reversing
sensors when:
• The radio is used.
• The 3-button control station is out of sight of the door.
• Or ANY other control (automatic or manual) is used.
Reversing devices are recommended for ALL installations.
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT
WARNINGWARNING
CAUTION
WARNING
WARNING
PRECAUCIÓN ADVERTENCIA
ADVERTENCIAADVERTENCIA