Logic 3

OWNER’S MANUAL

T
INDUSTRIAL DUTY COMMERCIAL DOOR OPERATOR

This Operator Features

the Enhanced
T ENA N
IN

C
A

E
M

M
A
L
E PAT E N T P E N D I N G

E
R T
T SYS

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.

Radio Receiver
INTENDED FOR PROFESSIONAL Built on Board
INSTALLATION ONLY
Visit www.LiftMaster.com to locate a professional installing dealer in your area.

2 YEAR WARRANTY
315MHz

Serial # Box NOT FOR RESIDENTIAL USE

Installation Date

A SAFETY DEVICE IS HIGHLY RECOMMENDED

 TABLE OF CONTENTS
SPECIFICATIONS PROGRAMMING
Carton Inventory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Logic Control Pushbuttons . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Operator Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Determine and Set Wiring Type . . . . . . . . . . . . . . . . . . . . . . . . .18
Operator Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Failsafe Wiring Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Self-Monitoring Safety Device Options . . . . . . . . . . . . . . . . . . .19
PREPARATION Programming Remotes . . . . . . . . . . . . . . . . . . . . . . . . . . . .20-21
Track Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Maintenance Alert System (MAS) . . . . . . . . . . . . . . . . . . . . . . .22
Powerhead Attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Mid Stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Trolley Carriage/Chain Attachment . . . . . . . . . . . . . . . . . . . . . . . .5 Timer To Close . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23-24
Car Dealer Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
INSTALLATION
Mount the Header Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 AUTOMATICALLY LEARNED PROGRAMMING
Mount the Operator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Auxiliary Reversal System/RPM Sensor . . . . . . . . . . . . . . . . . . .25
Hang the Operator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 Maximum Run Timer (MRT) . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Straight Arm Attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Entrapment Protection Accessories . . . . . . . . . . . . . . . . . . . . . . .8 OPTIONAL PROGRAMMING
Red/Green Warning Light Card . . . . . . . . . . . . . . . . . . . . . . . . . .26
ADJUSTMENT Resetting Factory Defaults - Clearing Memory . . . . . . . . . . . . . .26
Limit Switch Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Emergency Disconnect System . . . . . . . . . . . . . . . . . . . . . . . . .10 MAINTENANCE
Brake Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 Maintenance Shedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Clutch Adjustment and Auxiliary Reversal System . . . . . . . . . .11 Life of Operator Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
How to Order Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
POWER & GROUND WIRING
Safety Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 TROUBLESHOOTING
Power Wiring Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 Diagnostic Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Ground Wiring Connections . . . . . . . . . . . . . . . . . . . . . . . . . . .12 Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Troubleshooting Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . .30
CONTROL STATION WIRING & INSTALLATION Troubleshooting Radio Functionality . . . . . . . . . . . . . . . . . . . . .31
Control Wiring Connections . . . . . . . . . . . . . . . . . . . . . . . . . . .13
External Radio Wiring Connections . . . . . . . . . . . . . . . . . . . . . .13 REPAIR PARTS
Mounting Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 Electrical Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32-33
DIAGRAMS Repair Parts Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34-35
Control Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Standard Power & Control Connection Diagrams . . . . . . . . . . .14
1 Phase Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
3 Phase Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Logic Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

WARNING WARNING
Mechanical IMPORTANT NOTES:
• BEFORE attempting to install, operate or maintain the operator,
CAUTION
WARNING
WARNING WARNING
WARNING
you must read and fully understand this manual and follow all
safety instructions.
Electrical
• DO NOT attempt Installation, repair or service of your
WARNING
CAUTION commercial door and gate operator unless you are an WARNING
Authorized Service Technician.
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
AVERTISSEMENT
statements that accompany it. Read them carefully. AVERTISSEMENT
2
ATTENTION
AVERTISSEMENT
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT
 CARTON INVENTORY
Before beginning your installation check that all components were provided.

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 (#48 FOR 1/3 & 1/2 HP, #41 FOR 3/4 HP AND HIGHER)

NOTE: The tracks are shipped separately.

O P E R AT O R D I M E N S I O N S

WEIGHTS AND DIMENSIONS

HANGING WEIGHT: 80-110 LBS.

13.05"

*Door Height Plus 4 feet (minimum)

4"

11.63"
Highest Point of Door Travel

*23.43"

* - For Units with Brake add 3-1/2”

(Standard on 3/4 & 1 HP models; Optional on 1/3 & 1/2 HP)

3
 O P E R AT O R S P E C I F I C AT I O N S

MOTOR ELECTRICAL
TYPE:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous Duty TRANSFORMER: . . . . . . . . . . . . . . . . . . . . . . .24Vac Secondary
HORSEPOWER: . . . . . . . . . . . . . . . . . . . 1/3, 1/2, 3/4 and 1 HP CONTROL STATION: . . . . . . . . . . . . . . .NEMA 3-Button Station
Open/Close/Stop w/LED
SPEED: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1725 RPM
WIRING TYPE: . . . . . . . . . . . . . . . . . . . . . . . . . . .C2 (Standard)
VOLTAGE: . 115/230V 1 Phase, 208/230/380/460/575V 3 Phase Momentary contact to OPEN & STOP, constant pressure to
CURRENT: . . . . . . . . . . . . . . . . . . . . . . . . See Motor Nameplate 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 SAFETY
DRIVE REDUCTION: . . . . . . . .Primary: Heavy duty (5L) V-Belt DISCONNECT: . . . . . . . . . . . . . . .Quick disconnect door arm for
Secondary: #41 chain/sprocket; emergency manual door operation.
Output: #48 chain (1/3 & 1/2 HP) or #41 chain (3/4 & 1 HP) SAFETY PHOTO EYES (Optional CPS-L): Through beam or retro
OUTPUT SHAFT SPEED: . . . . . . . . . . . . . . . . . . . . . . .140 RPM reflective devices used to provide non-contact
DOOR SPEED: . . . . . . .11 - 12" per second depending on door safety protection.
BRAKE: . . . . . . . . .Solenoid actuated disc brake on 3/4 & 1 HP SAFETY EDGE (Optional): Electric or pneumatic sensing device
BEARINGS: . . . . . . . . . . . . .Output Shaft: Shielded Ball Bearing attached to the bottom edge of door.
Clutch Shaft: IronCopper sintered and oil impregnated

4
 WARNING P R E PA R AT I O N WARNING
TRACK ASSEMBLY
CAUTION WARNING
1. Using the 3/8"-16 x 3/4 " bolts and flange hex nuts provided,
assemble the operator track by installing and tightening the To prevent possible SERIOUS INJURY or DEATH:
track spacer brackets. Position the spacers evenly over the • DO NOT connect electric power until instructed to do so.
length of the track. NOTE: The nylon pad on the spacer • If the door lock needs to remain functional, install an
bracket should face up. interlock switch.
2. Using (2) 3/8"-16 x 1" bolts and lock washers, install the front • ALWAYS call a trained professional door serviceman if door
idler assembly to the second set of holes of one end of the binds, sticks or is out of balance. An unbalanced door may
track. Refer to the illustration below. not reverse when required.
3. Slide the trolley carriage onto the track so that the take-up bolt • NEVER try to loosen, move or adjust doors, door springs,
will be toward the operator. cables, pulleys, brackets or their hardware, ALL of which are
under EXTREME tension and can cause SERIOUS personal
INJURY.
POWERHEAD ATTACHMENT • Disable ALL locks and remove ALL ropes connected to door
AVERTISSEMENT
1. Position the track assembly on the frame of the powerhead so AVERTISSEMENT
BEFORE installing and operating door operator to avoid
that the motor side of operator is in back (away from door ). entanglement.
2. Secure the operator in place by installing six 3/8"-16 x 3/4"
ATTENTION
bolts in the three holes on each side of the frame and track. AVERTISSEMENT
TROLLEY CARRIAGE / CHAIN ATTACHMENT
3. Connect the track to the powerhead by fastening
(2) 3/8"-16 x 3/4" bolts and nuts through the frame and the 1. Attach the take-up bolt to the trolley carriage using 3/8"-16 hex
end holes in track. Tighten all four bolts to secure the track to nuts and lock washer, as shown below.
the powerhead. 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

Front Idler Assembly track, a properly adjusted chain will sag about 3" at the midpoint.
If necessary, remove links from the chain to achieve proper
adjustment.
Reel Chain
Around Idler and
Over Spacer Brackets

ADVERTENCIA ADVERTENCIA
Spacer Bracket
PRECAUCIÓN ADVERTENCIA
(Mounted Nylon Pad Side Up)

Trolley Assembly Trolley Carriage

L - Slot

Master Link

Trolley Carriage

Take-up Bolt
Hex Nut
Lockwasher
Hex
Nut
Master Link
Roller Chain

Straight Arm

5
 I N S TA L L AT I O N
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 MOUNT THE OPERATOR

1. Close the door and mark the inside vertical centerline of the 1. Position the operator on the floor below the header bracket.
door. 2. Position the front idler assembly against the header bracket.
2. Extend the line onto the header wall above the door. 3. Align the bracket holes and join with pivot shaft as shown.
You can fasten the header bracket within 2 feet of the left or Secure with cotterpins (provided).
right of the door center only if a torsion spring or center
bearing plate is in the way. Header Bracket

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.

Carpenter’s Header Wall

Cotterpins
Level

High Point
of Travel

Door Travel Pivot Shaft

Projection

4. Using the projected lines for location, mount a suitable wood 4. Raise the operator to a horizontal position above the guide rails
block or length of angle iron to the wall above the door and temporarily secure with a suitable rope, chain, or support
opening. Refer to the illustration below. This will provide a from the floor. Open door slowly, being careful not to dislodge
mounting pad for the front header bracket of the operator. If the temporary support. Using the door as a support, place a
necessary reinforce the wall with suitable mounting brackets to level against the rail and shim the operator until it is horizontal.
ensure adequate support of mounting pad. Using suitable Make sure that the operator is aligned with the center line of
hardware, mount the (U-shaped) front header bracket to the the door.
pad.

Guide Rails
3.5"
(8.89 cm)
1.75"
(4.45 cm)

High Rise Point

Projection Line Using the door as support, shim
operator to a horizontal position.

4" (10.16 cm)

Min.

Vertical Centerline of Door

Header Bracket Drill Pattern

Operator Alignment

6
 I N S TA L L AT I O N
HANG THE OPERATOR
1. The illustration below shows a typical method of hanging the WARNING
operator from the ceiling. Each installation may vary, but in all To avoid possible SERIOUS INJURY from a falling operator,
cases side braces should be used for additional strength. fasten it SECURELY to structural supports of the garage.
2. For mounting of the support brace(s) to the powerhead. Four CAUTION
Concrete anchors MUST be used if installing ANY brackets
holes (clearance up to 3/8" bolts) are located on each side of into masonry.
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 STRAIGHT ARM ATTACHMENT
the door). 1. Fully close the door and move the trolley slider to within 2" of
NOTE: If the operator is longer than 15' use of a mid-span the front idler.
support is recommended. 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.
AVERTISSEMENT
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.
ATTENTION
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.

Top Roller

Straight Arm
Mid-Span
Support Brace Vertical Centerline of Door

ADVERTENCIA Door Bracket

Curved
Door Arm
Powerhead
Support Brace PRECAUCIÓN
Pivot Bolt

7
 I N S TA L L AT I O N
ENTRAPMENT PROTECTION ACCESSORIES
(OPTIONAL) WARNING
PHOTO EYES & SENSING EDGES To prevent possible SEVERE INJURY or DEATH, install reversing
sensors when:
Sensing devices provided for door industry type operators with an
isolated normally open (N.O.) dry contact output are compatible • The radio is used.
CAUTION
with your operator. This includes pneumatic and electric edges, • The 3-button control station is out of sight of the door.
and through beam and retro reflective photo eyes. If you would • Or ANY other control (automatic or manual) is used.
like to order or receive more information on safety devices, please Reversing devices are recommended for ALL installations.
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 WIRING
coiled cord or take-up reel. For wiring of your sensing device to the operator, refer to the
Important Notes: wiring diagrams provided on pages 14 and 15. See field
connection terminals identified as Reversing Device.
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 TAKE-UP REEL
electrical box in accordance with local codes.
AVERTISSEMENT
Take-up reel should be installed 12" above the top of the door.

COIL CORD ATTENTION

Connect operator end of coil cord to junction box (not provided)
fastened to the wall approximately halfway up the door opening.

ADVERTENCIA

PRECAUCIÓN

8
 WARNING ADJUSTMENT WARNING
LIMIT SWITCH ADJUSTMENT
CAUTION
NOTE: Make sure the limit nuts are positioned between the limit
WARNING
switches before proceeding with adjustments. To avoid SERIOUS personal INJURY or DEATH from
1. Depress retaining plate to allow nut to spin freely. After electrocution, disconnect electric power BEFORE manually
adjustment, release plate and move nut back and forth to moving limit nuts.
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.

AVERTISSEMENT AVERTISSEMENT

ATTENTION CLOSE OPEN

AVERTISSEMENT
SAFETY
(Aux. Close) Limit Switch

CLOSE Limit Switch OPEN Limit Switch

ADVERTENCIA ADVERTENCIA

PRECAUCIÓN ADVERTENCIA

9
 ADJUSTMENT
EMERGENCY DISCONNECT SYSTEM
WARNING
TO DISCONNECT DOOR FROM OPERATOR
To prevent possible SERIOUS INJURY or DEATH from a falling
The door should be in the fully closed position if possible. Pull door or arm:
down on the emergency release handle (so that the trolley release CAUTION
• DO NOT stand under the door arm when pulling the
arm snaps into a vertical position) and lift the door manually. The emergency release.
lockout feature prevents the trolley from reconnecting
• If possible, use emergency release handle to disengage
automatically, and the door can be raised and lowered manually
trolley ONLY when door is CLOSED. Weak or broken springs
as often as necessary. 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.
Emergency
Disconnect

Header Trolley
Pull emergency release
Bracket
handle straight down.
Door Arm Track
Emergency disconnect
will open.

AVERTISSEMENT
Clevis Pin
Chain
TO RECONNECT DOOR ARM TO TROLLEY Emergency
Disconnect
ATTENTION
Pull the emergency release handle toward the operator at an
angle so that the trolley release arm is horizontal. The trolley will Straight
reconnect on the next UP or DOWN operation, either manually or Door Arm
Assembly
by using the door control or remote.
Door
Bracket

Emergency
Disconnect
Lift free end of door arm
to trolley. Pull emergency
handle to allow arm to
Door Arm engage roll pin. Release
handle. Emergency
disconnect will close.
Curved NOT
ICE
Door Arm Emergency
Door
Release Handle

ADVERTENCIA

PRECAUCIÓN

10
 ADJUSTMENT
BRAKE ADJUSTMENT
A solenoid brake is standard on 3/4 and 1 horsepower models,
and is optional on 1/3 and 1/2 horsepower models. The brake is
Brake Assembly
adjusted at the factory and should not need additional adjustment
for the the life of the brake assembly.

Replace brake assembly when necessary. Refer to the illustration

for identification of components for the solenoid type brake Brake Plate
system. Assembly

Solenoid
Cotterpin
Release Lever

CLUTCH ADJUSTMENT AND

AUXILIARY REVERSAL SYSTEM WARNING
The Auxiliary Reversal System is designed to protect the door To prevent possible SEVERE INJURY or DEATH, install reversing
sensors when:
and motorized operator. It is NOT a substitute for a safety sensing
device. The Auxiliary Reversal System works in tandem with the • The radio is used.
CAUTION
adjustable clutch to detect if a closing door runs into or comes • The 3-button control station is out of sight of the door.
across an obstruction. If an obstruction is met and causes the • Or ANY other control (automatic or manual) is used.
clutch to slip, the Auxiliary Reversal System will return the door Reversing devices are recommended for ALL installations.
to the full open position when closing or stops the door when
opening.
Adjusting Nut Clutch Pad
1. Remove cotterpin from nut on the clutch shaft.
2. Back off clutch nut until there is very little tension on the Spring
Clutch Plate
clutch spring.
3. Tighten clutch nut gradually until there is just enough tension
to permit the operator to move the door smoothly but to allow
the clutch to slip if the door is obstructed. When the clutch is
properly adjusted, it should generally be possible to stop the Cotterpin
AVERTISSEMENT
Washer
door by hand during travel.
4. Reinstall cotterpin.
ATTENTION
Clutch Pulley

11 ADVERTENCIA
NG P O W E R W I R I NWARNING
G & GROUND WIRING

N WARNING
To reduce the risk of SEVERE INJURY or DEATH: • ALL electrical connections MUST be made by a qualified
• ANY maintenance to the operator or in the area near the individual.
operator MUST NOT be performed until disconnecting the • DO NOT install ANY wiring or attempt to run the operator
electrical power and locking-out the power via the operator without consulting the wiring diagram. We recommend that
power switch. Upon completion of maintenance the area MUST you install an optional reversing edge BEFORE proceeding with
be cleared and secured, at that time the unit may be returned the control station installation.
to service. • ALL power wiring should be on a dedicated circuit and well
• Disconnect power at the fuse box BEFORE proceeding. protected. The location of the power disconnect should be
Operator MUST be properly grounded and connected in visible and clearly labeled.
accordance with local electrical codes. The operator should be • ALL power and control wiring MUST be run in separate
on a separate fused line of adequate capacity. conduit.

MENT AVERTISSEMENT
POWER WIRING CONNECTIONS Single Phase Power Wiring
1. Connect power wires coming from the main to the captive
terminal block in the electrical box enclosure marked with the
ON AVERTISSEMENT
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 Hot
electrical box enclosure marked with the label shown below. Line Power
115/230 Vac
NOTE: Must use #14 AWG or thicker wire for power wiring. Single Phase Neutral

Ground

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.
Three Phase Power Wiring
GROUND WIRING CONNECTIONS
1. Connect earth ground to the chassis ground screw in the
electrical box enclosure.

NCIA2. Use same conduit entry into the electrical box as theADVERTENCIA
power
Phase 1

wiring. Phase 2
Line Power
208/230/380/460/575 Vac
ÓN ADVERTENCIA
IMPORTANT NOTE: This unit must be properly grounded. Failure
Three Phase Phase 3

to properly ground this unit could result in electric shock and

serious injury.

12
 C O N T R O L S TAT I O N W I R I N G A N D I N S TA L L AT I O N
CONTROL WIRING CONNECTIONS
1. Connect control wires to the P1 terminal block located on the
WARNING
logic board as shown. To prevent possible SEVERE INJURY or DEATH, install reversing
2. Connect conduit with all control wires through the conduit sensors when:
hole in the electrical box enclosure marked with the label • The radio is used.
CAUTION
shown below. • 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.
CONTROL WIRING
USE COPPER WIRE ONLY 40-10032B

24V
3. Apply power to the operator. Press OPEN push button and AC 14 24 VOLT AC
24V
observe direction of door travel and then Press the STOP
24 VOLT AC

R31
AC 13
button. C3Ø

TIMER

D8
If door did not move in the correct direction, check for improper
C18

TIMER DEFEAT

U7
D31 DEFEAT 12
wiring at the control station or between operator and control D7
D6
D5

station. NOTE: In “Diag” mode the 3-button control station can be P1Ø
C17 C25 D4

24V
CMN 11 COMMON
tested to verify correct wiring of Open, Close and Stop buttons
AVERTISSEMENT
AC 14
POWER
24V

without moving the door. TIMER

DEFEAT
D19
AC
TIMER
13
MAINTENANCE ALERT SYSTEM
MAS 10
DEFEAT 12
D17

If the door moves in the wrong direction and or the limits move
R8

CMN 11

in the wrong direction, simply move the motor direction jumper

MAS D28

MAS 10
EYES 9 PHOTO EYES (LiftMaster Only)
ATTENTION
4 D23

located on the logic board from the factory default setting (STD) EYES

EDGE
D15
EYES 9

REVERSE
EDGE 8
to the (REV) pins. This will change the motor rotation as well as OPEN
D2Ø
EDGE 8

OPEN 7
the functional position of the OPEN and CLOSE limit switch’s. CLOSE D21

CLOSE 6 OPEN 7 OPEN

Then relocate the safety limit switch (SLS) only to the opposite STOP D13

STOP 5

side with the new functional close limit location. Orient the arm TS
CMN 4 CLOSE 6 CLOSE
(lever) of the limit switch away from the center. NOTE: The motor DIAG 3

direction change is not available on the DJ and DH models. ROG

SBC
2
STOP 5 STOP
D1 E2) SBC
AILSAFE D14 1
P1
F1

COMMON
D34
CMN 4
EXTERNAL RADIO WIRING CONNECTIONS
On all models a radio terminal bracket marked R1 R2 R3 is
3 INTERLOCK
located on the outside of the electrical enclosure. In B2 mode the 2 INTERLOCK
operator will then open a fully closed door, close a fully open
door, stop an opening door, and reverse a closing door from the SBC 1 SINGLE BUTTON CONTROL
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 ADVERTENCIA
built-in receiver, remove or disconnect the coaxial cable from the
logic board.
PRECAUCIÓN 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

MOUNTING INSTRUCTIONS
AND SECURED, AT THAT TIME THE UNIT MAY
BE RETURNED TO SERVICE.

1. Mount WARNING NOTICE beside or below the control station.

2. Mount MAINTENANCE ALERT label to either side of control
station. Control
3. Mount control station(s) within line of sight of door(s). Station
Maintenance
Optional Alert SystemTM
If light is Flashing
Controls Rapidly, it is time
for routine door
maintenance.
If light is Flashing
Slowly, followed
by a pause, call for
immediate service.

4'
Approximate

Service every

13 cycles/months
STANDARD POWER & CONTROL CONNECTION DIAGRAMS

OPEN

Maintenance
Alert LED CLOSE

R3 (RD) (WH)
Radio Control STOP
(24V DC only) R2
Open
R1
3-Button
Station
Close

Sensing Edge
Stop
CPS-L &
CPS-LN4

Open/Close
Single Button

Timer Defeat
Switch Remove Jumper
To Install External
Interlock

Single Phase Power Wiring Three Phase Power Wiring

Phase 1
Hot
Line Power
115/230 Vac Line Power Phase 2
Neutral
Single Phase 208/230/380/460/575 Vac
Three Phase Phase 3
Gnd

Gnd

14
 LOGIC (VER. 3.0) 1 PHASE WIRING DIAGRAM

OPEN

Maintenance CLOSE

Alert LED
(RD) (WH) STOP

Open
3-Button
115V MOTOR CONNECTION 230V MOTOR CONNECTION Station
Close
NOTE: Gray (GY) and purple (PU) motor wires are reversed Sensing
for H and HJ right hand models and all GH and J models. Edge
Stop
CPS-L & CPS-LN4

Open/Close
Single Button
Hoist Interlock
When Present TMR DEF Remove Jumper
SWITCH
To Install External
(YE) (BL) Door Interlock
14

13

DEFEAT 12

11

10

CLOSE 6

1
TIMER

EDGE

OPEN

STOP
EYES
CMN

CMN
MAS

SBC
24V

24V
AC

AC

F1
C3Ø

R31
D31

D7
D6
D5
D4

U7
C25

P1
D34
SBC
D2Ø
D19

D17

D28

D23

D15

D21

D13

NON FAILSAFE D14

C17

POWER

EDGE
TIMER

EYES
DEFEAT

(B2 C2 D1 E2)
P1Ø

D8

CLOSE

DIAG
OPEN

STOP
R8

MAS

PROG
C18

FSTS
4
Ø14LGØ657–A Ø14GPØ657–A

D1

(YE)
D22

ENABLE
J3ØØ

(OR)
TIMER

TS
(WH)
(YE)

S8
(PU)

T
(WH)
TIMER

DIRECTION
J1

RELAY A

RELAY B

MOTOR (RD)
3

FAILSAFE
(GY)
X1

E2

B2
D25

D24

D26

D27

(YE)

D1
(RD)

C2
MID

D35

(WH)
2

(PU)
D36
OLS

CLS
SLS
MID

C54 (YE)
(OR)
MRT

(GY)
C77
RADIO

L5
L1
D16

C73
R29

P6
U1
P4

E1

C71
K3
D3Ø2

C78
P7
C11

(YE)
hot
L3 L2 L1

(BK)
(BR) See Motor (OR) (PU)
(WH)
MOV
neutral Connections
(WH)
ground MOV 0 B 1 (WH) 0 A 1
(WH) (WH)

4 8 (WH) 4 8
(WH) (WH)
(WH) 2 6
NO
2 6
VOLT 1PH.
POWER IN

COM 120 120 / 240 (WH)

115 / 230

VAC VAC
COM C (YE) (PU) (BL) (GY)

COIL
+24 VAC -24 VAC (GY)
See Motor
Connections
(YE)

(WH) (RD) (PU)

(WH)
(WH)

(YE)
(OR)

COM COM
NO NO
(WH)
(RD)

OPEN L/S CLOSE L/S

(GY)
(YE)

NC NC
R1 R2 R3
(WH) 1 2 3 4
(YE)
Radio
COM (RD)
NOTE: Lock Sensor is provided on Models BYPASS NO RPM Board
NC
DJ and DH only, red wire from main harness L/S NC
NO
SAFETY L/S
connects to NC on Bypass L/S and to NO on (WH)
COM

Lock Sensor switch. White wires connect the (WH)

COM on Bypass L/S and Lock Sensor switch to (RD)
LOCK NO
NC on Open L/S. SENSOR NC
(see note at left)

15
 LOGIC (VER. 3.0) 3 PHASE WIRING DIAGRAM
(BL/BK)
T4 T7 T1 T4 T7 T1

(WHEN PRESENT)

(WHEN PRESENT)
230V BRAKE

575V BRAKE
(WHEN PRESENT)
230V BRAKE

J (GY) J (GY) 1 (GY)

(BR) OPEN
(BR) (BR)
T5 T8 T2 T5 T8 T2
(PU) (PU) 2 (PU)
(BR) (BR) (BR) Maintenance
J (YE) J (YE) 3 (YE) Alert LED CLOSE
T6 T9 T3 T6 T9 T3
(BL/BK)
(RD) (WH)
STOP
208/230V MOTOR CONNECTION 460V MOTOR CONNECTION 575V MOTOR CONNECTION Open
NOTE: Gray (GY) and purple (PU) motor
wires are reversed for H and HJ right hand 3-Button
models and all GH and J models. Close Station
Sensing
Edge
Stop
CPS-L & CPS-LN4

Open/Close
Single Button
Hoist Interlock
When Present TMR DEF Remove Jumper
SWITCH To Install External
(YE) (BL)
Door Interlock
14

13

DEFEAT 12

11

10

CLOSE 6

1
TIMER

EDGE

OPEN

STOP
EYES
CMN

CMN
MAS

SBC
24V

24V
AC

AC

F1
C3Ø

R31
D31

D7
D6
D5
D4

U7
C25

P1
D34
SBC
D2Ø
D19

D17

D28

D23

D15

D21

D13

NON FAILSAFE D14

C17

POWER

EDGE
EYES
TIMER
DEFEAT

(B2 C2 D1 E2)
P1Ø

D8

CLOSE

DIAG
OPEN

STOP
R8

MAS

PROG
C18

FSTS
4
Ø14LGØ657–A Ø14GPØ657–A

D1

(YE)
D22

ENABLE
J3ØØ

(OR)
TIMER

TS
(WH)
(YE)

S8
(PU)

T
(WH)
TIMER

DIRECTION
J1

RELAY A

RELAY B
(RD)
MOTOR
3

FAILSAFE
(GY)
X1

E2

B2
D25

D24

D26

D27

(YE)

D1
(RD)

C2
MID

D35
2

(WH)
(PU)
D36
OLS

CLS
SLS
MID

C54 (YE)
(OR)
MRT

(GY)
C77
RADIO

L5
L1
D16

C73
R29

P6
U1
P4

E1

C71
K3
D3Ø2

C78
P7
C11

(BK)
(PU)
L3 L2 L1

(BR) See Motor (PU)

(OR)
MOV (BR) Connections
MOV 0 B 1 0 1
(WH) A
(WH)
(WH)
(WH)
(WH) 4 8 4 8
(WH) (WH) (WH)
(WH)
NO (WH) NO 2 6
208/ 230 / 380 / 460

COM 120 240 / 460 / 2 6 (WH)

VAC 575 VAC COM
COM D
(WH)
C (GY) (YE)
(GY)
VOLT 3PH.
POWER IN

COIL COIL
+24 VAC -24 VAC See Motor
Connections
(YE)

(WH) (RD) (PU)

(WH)
(WH)

(YE)
(OR)
(WH)
(RD)

(GY)
(YE)

COM COM
NO NO
OPEN L/S NC NC
CLOSE L/S
R1 R2 R3
1 2 3 4
(WH) Radio
(YE)
COM (RD) RPM Board
NOTE: Lock Sensor is provided on Models BYPASS NO
NC
DJ and DH only, red wire from main harness L/S NC
NO
SAFETY L/S
connects to NC on Bypass L/S and to NO on (WH)
COM

Lock Sensor switch. White wires connect the (WH)

(RD)
COM on Bypass L/S and Lock Sensor switch to LOCK NO
NC on Open L/S. SENSOR NC
(see note at left)

16
 LOGIC BOARD

Ø14LGØ657–A Ø14GPØ657–A

R31
P4

C3Ø

D8
E1
C18

U7
Auxiliary Board R29 D31 Motor Direction
Connections D7 Jumper
C11 D6
D5
D3Ø2
X1 P1Ø C25 D4
C17
Single Phase &
24V Three Phase Jumper
U1
K3 AC 14
Programmed Chip POWER
24V
AC 13
D19
J1 J3ØØ TIMER TIMER Maintenance Alert
DEFEAT DEFEAT 12
OLS D25 System Button for
R8 D17
Programming

REV


STD

CONTACTOR/3 PH 
CMN 11

SINGLE PHASE
MID D24 MAS D28

DIRECTION
Maximum Run SLS D26 MOTOR MAS 10
Timer Button 4 D23
D16 Open Button
CLS D27 EYES
EYES 9
D15
P7 MRT MID TIMER D1
EDGE Close Button
D22 OPEN EDGE 8
Radio Learn Button D2Ø
TIMER
RADIO 1 2 3 ENABLE
D36 OPEN 7 Stop Button
CLOSE D21
RELAY A
Mid Stop Learn Button CLOSE 6
STOP D13
C77
RELAY B
D35
STOP 5

T TS
C73 CMN 4
Timer to Close E2 FSTS
C54

Learn Button D1 DIAG 3 Control Wiring

L1 Terminal Block
C2
C78
®

2
SBC
C71

L5
B2 PROG
FAILSAFE (B2 C2 D1 E2)
S8 NON FAILSAFE D14
SBC 1
P1
F1
P6 D34

Wiring Type Failsafe Switch

Selector Dial

17
 PROGRAMMING
LOGIC CONTROL PUSHBUTTONS OPEN, CLOSE, STOP SELECTOR DIAL
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 17 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.
FAILSAFE SWITCH

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
Station.

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.

18
 PROGRAMMING
FAILSAFE WIRING TYPES B2 Failsafe Same functions as B2. Self Monitoring safety device
TYPE must be installed to operate door for each of the
following failsafe wiring types. See Self Monitoring
TS Momentary contact to open, close, and stop with Safety Device Options. Compatible with 3-Button
open override and Timer To Close. Every device that Station, 1-Button Station and 1- and 3-Button
causes door to open, including a reversing device, Remote Controls.
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 D1 Failsafe Same functions as D1. Self Monitoring safety
button and radio control can recycle the timer. The device must be installed to operate door for each of
stop button will deactivate the Timer To Close until the following failsafe wiring types. See Self
the next command input. The Timer To Close will Monitoring Safety Device Options. Compatible with
function from the programmable mid stop with this 2-Button Station and 2-Button Remote.
wiring type. Compatible with 3-Button Station,
1-Button Station and 1- and 3-Button Remote E2 Failsafe Same functions as E2. Self Monitoring safety device
Controls. (NOTE: Requires self monitoring photo must be installed to operate door for each of the
eyes to operate.) following failsafe wiring types. See Self Monitoring
Safety Device Options. Compatible with 3-Button
T Momentary contact to open, close, and stop, with Station and 3-Button Remote.
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 SELF-MONITORING SAFETY DEVICE OPTIONS
be connected to open input to activate the Timer To
To use the operator in any of the Failsafe wiring modes, or Timer
Close. If the Timer To Close has been activated, the
To Close wiring modes (TS, T, FSTS), a self monitoring safety
open button and radio control can recycle the timer.
device or CPS3 card with photo eyes or safety edges must be
The stop button will deactivate the timer until the
installed.
next command input. The Timer to Close will
function from the programmable mid stop with this RECOMMENDED SELF-MONITORING SAFETY DEVICES:
wiring type. Compatible with 3-Button Station, CPS-L NEMA 1 Direct Connect Eyes
1-Button Station and 1- and 3-Button Remote CPS-LN4 NEMA 4 Direct Connect Eyes
Controls. (NOTE: Requires self monitoring photo
eyes to operate.)
IMPORTANT NOTES:
1. External interlocks may be used with all functional modes.
FSTS Momentary button contact for open, close and stop
programming. Radio controls allowing open, close 2. Auxiliary devices are any devices that have only dry contacts.
and stop. User set mid stop. User set Timer To Examples: photocell, loop detector, pneumatic or electrical
Close. The single button station opens the door to treadles, radio controls, one button stations, pull cords, etc.
the full open limit bypassing the mid stop and 3. Open override means that the door may be reversed while
activates the Timer To Close, putting the operator in closing by activating an opening device without the need to use
TS mode until the door reaches the down limit, or the stop button first.
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.

19
 PROGRAMMING
STANDARD SINGLE BUTTON REMOTE CONTROL
Built in 3-channel, 315MHz radio receiver allows you to add WARNING
as many as 23 Security✚® remote controls or dip switch
remote controls. To prevent possible SEVERE INJURY or DEATH, install reversing
sensors when:
PROGRAMMING REMOTE CONTROLS • The radio is used.
CAUTION
STANDARD SINGLE BUTTON REMOTE CONTROL • The 3-button control station is out of sight of the door.
1. To enter programming press and release the RADIO button on • Or ANY other control (automatic or manual) is used.
the logic board (LED will light). Reversing devices are recommended for ALL installations.
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 NOTICE: To comply with FCC and or Industry Canada (IC) rules, adjustment or modifications of this
additional remote control(s). receiver and/or transmitter are prohibited, except for changing the code setting or replacing the
battery. THERE ARE NO OTHER USER SERVICEABLE PARTS.
3. Press and release the RADIO button to complete the 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
programming. The programming mode is exited if no activity is must accept any interference received, including interference that may cause undesired operation.
performed within 30 seconds.
NOTE: Single button remote control is not supported with D1 and
E2 wiring modes.
AVERTISSEMENT
SINGLE BUTTON REMOTE CONTROL PROGRAMMED
AS A SINGLE BUTTON CONTROL (SBC)
This function programs a remote as a wireless single button
ATTENTION
control.
In B2 mode, operation is OPEN/STOP/CLOSE/REVERSE/STOP. Ø14LGØ6

P4
In C2 mode, operation is OPEN/STOP/constant pressure to
CLOSE/STOP on release. E1

In T and TS modes, operation is

OPEN/STOP/CLOSE/REVERSE/STOP and Timer to Close R29

start/refresh. NOTE: If Car Dealer mode is enabled, SBC will be C11

open only stopping at the Open Mid-Stop. D3Ø2

X1

In FSTS mode, operation is OPEN with Timer to Close

U1
start/refresh only, bypassing a programmed Open Mid-Stop. K3

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 OLS D25

RADIO

REV
the logic board (LED flashes rapidly and then remains on MID D24

solid).
SLS D26
3. Press and hold the remote button until the LED flashes rapidly.
The LED will then remain on solid after releasing.
ADVERTENCIA D16
CLS D27

P7 MRT MID T
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.
PRECAUCIÓN RADIO 1
D36
2

RELA
NOTE: Requires self-monitoring photo eyes when using constant
pressure to close (wiring C2, D1 and E2 ). C77
RELA
D35
ERASING REMOTES
C73
Press and hold the RADIO button on the logic board until the E2
C54

RADIO LED flashes rapidly (approximately 5 seconds). D1

All remotes will be erased. LiftM
L1
ast
C2
C78
®

e r
C71

L5
B2
FAILSAF

P6

20
 PROGRAMMING
3-BUTTON REMOTE CONTROLS REMOTE CONTROL PROGRAMMING FEATURE
Your 315MHz Security✚® or dip switch remote control can be Program Remote Controls from the 3-button control station
programmed to operate as a 3-button wireless control station: (3BCS).
the large button will open the door, the middle button will close Requires Firmware Version 4.6 or higher and a 3BCS with the
the door, and the third button will stop the door’s movement. MAS connected to the control board.
You may set up this feature as follows: This feature allows the user to add additional remote controls from
1. To enter programming press the RADIO button on the logic the 3BCS. By default the remote control learn option is off. NOTE:
board (the RADIO LED will light). Requires access to the operator electrical box to enable or disable
2. To program the OPEN button to a remote control press the this feature.
OPEN button on the logic board. The RADIO LED will flash and To turn this feature on:
then stay on solid. Then press the corresponding button on the 1. Turn the SELECTOR DIAL to PROG.
remote control. The RADIO LED on the logic board will flash, 2. Press and release the RADIO button. The RADIO LED will be lit.
this confirms that the remote control has been programmed.
3. Press and release the MID button. The RADIO LED will flash
(By programming the remote control you use 1 channel of the
quickly 6 times.
23 channels on the radio receiver.)
4. Press and release the RADIO button. The RADIO LED will turn off.
3. To program the CLOSE button to a remote control press the
CLOSE button on the logic board. The RADIO LED will flash 5. Return the SECTOR DIAL to the desired wiring type.
and then stay on solid. Then press the corresponding button To add remote controls from the 3BCS:
on the remote control. The RADIO LED on the logic board will 1. With the door in the fully closed position (close limit activated),
flash, this confirms that the remote control has been press and hold STOP.
programmed. (By programming the remote control you use 1 2. While holding STOP, press and hold CLOSE.
channel of the 23 channels on the radio receiver.) 3. While holding STOP and CLOSE, press and hold OPEN.
4. To program the STOP button to a remote control, press the 4. Release all three buttons once the MAS LED has lit.
STOP button on the logic board. The RADIO LED will flash and 5. Learn a remote control by one of the following methods:
then stay on solid. Then press the corresponding button on the
a. Programming a standard single button/single function remote
remote control. The RADIO LED on the logic board will flash,
control, push and hold the remote control button until
this confirms that the remote control has been programmed.
the MAS LED goes out. Repeat steps 1 through 4 to add
(By programming the remote control you use 1 channel of the
additional remote controls.
23 channels on the radio receiver.)
b. Programming a 3-button/three function remote control
5. After learning remote controls press the RADIO button on the
(open/close/stop), first push the button on the 3BCS (example:
logic board (LED will turn off). NOTE: If no activity within 30
OPEN) and then press and hold the button on the remote
seconds the radio will automatically exit programming mode.
control (example: large button) that you want to correspond
with the selected (example: OPEN) command until the MAS
Ø14LGØ657–A Ø14GPØ657–A

LED flashes and goes out. Repeat steps 1 through 4 to add

R31

P4

C3Ø

additional buttons (close and stop).

D8

E1
C18
U7

R29 D31

D7

C11

D3Ø2
X1 P1Ø
C17 C25
D6
D5
D4
To turn this feature off:
24V
U1

Open D22
D1
EDGE
OPEN
K3
POWER
AC
24V
14
1. Turn the SECTOR DIAL to PROG.
OPEN D2Ø D19
AC
TIMER
13

2. Press and release the RADIO button. The RADIO LED will be lit.
J1 J3ØØ TIMER
DEFEAT DEFEAT 12
OLS D25 D17
R8
REV?

STD?

?
CONTACTOR/3 PH ?

CMN 11
SINGLE PHASE

MID D24 MAS D28

CLOSE D21
Close 3. Press and release the MRT button. The RADIO LED will flash
DIRECTION

SLS D26 MAS 10

D23
MOTOR

4
D16
CLS D27 EYES
EYES 9
CLOSE
quickly 3 times.
D15
P7 MRT MID TIMER
STOP D13 D22
D1
EDGE
OPEN EDGE 8

Stop RADIO 1 2 3
TIMER
ENABLE
D2Ø

OPEN 7

4. Press and release RADIO button. The RADIO LED will turn off.
D36
CLOSE D21
RELAY A
CLOSE 6
STOP D13
C77
RELAY B

5. Return SELECTOR DIAL to desired wiring type.

D35
STOP 5

STOP C73
T TS
CMN 4
E2 FSTS
C54

NOTE: Restoring the operator to Factory Default (see “RESETTING

D1 DIAG 3
L1

C2
C78
®

2
SBC
C71

B2 PROG

P6
L5
FAILSAFE
S8
(B2 C2 D1 E2)
NON FAILSAFE D14
P1
D34
SBC

F1
1
FACTORY DEFAULTS”) will also disable this feature. The remote
controls will still be learned.

21
 PROGRAMMING
MAINTENANCE ALERT SYSTEM (MAS) SELECTOR DIAL
Feature: An internal cycle counter will activate a flashing LED on
the 3-button control station when the preset number of cycles or
months has elapsed (whichever occurs first). Setting this feature
is optional. By default this feature will never activate. Logic 3.0
operators incorporate a self diagnostic feature built into the MAS
LED. In addition to indicating when routine maintenance is due,
the MAS LED can be used to troubleshoot some problems with
the operator.
Benefit: The Maintenance Alert System (MAS) assists the Operation will vary
installing dealer in setting up a routine maintenance program. depending on
wiring type
Once programmed, the MAS notifies the end user (with a flashing
LED on the 3-button station) when a preset number of
cycles/months has elapsed and scheduled maintenance is due.
To Program:
1. The Maintenance Alert System (MAS) assists the installing
dealer in setting up a routine maintenance program. Once
programmed, the MAS notifies the end user (with a flashing
LED on the 3-button station) when a preset number of
cycles/months has elapsed and scheduled maintenance is due. 3-BUTTON STATION
2. Close the door.
3. Turn the selector dial to PROGRAM. Maintenance
Alert LED
4. Press and release the MAS SET button. OPEN

5. Press the STOP button once to clear the MAS counter.

6. Press the OPEN button once for every 5,000 cycles CLOSE
increments. Press the CLOSE button once for every 3 month
increments. Press the STOP button once to clear the MAS
STOP
memory.
7. Press the MAS SET button to complete the programming. The
on board LED will flash back the programmed settings. The
OPEN LED will flash once for every 5,000 cycles. The CLOSE
LED will flash once for every 3 months. Press This To Get This
8. Turn the selector dial back to the desired wiring type. OPEN Adds 5,000 cycles to Maintenance Alert System
NOTE: If MAS LED flashes 2 or more flashes in a row followed by Activation Counter.
a pause, an operator error occurred. Turn to page 30 to diagnose
problem. CLOSE Adds 3 Months to Maintenance Alert System
Example: A door is installed with 30,000 cycle springs and has Activation Timer.
an annual service contract. To set the MAS, turn selector dial to
PROGRAM, press MAS button, press the STOP button to clear STOP Clears memory, sets Maintenance Alert System
the memory and then press the OPEN button 6 times (30,000 Activation Counter to 0 cycles and
cycles) and close 4 times (12 months). Press the MAS again to 0 months.
complete the programming. Set the selector dial to desired wiring
type.

Special Notes about MAS: A 5th wire must be run to the control selector dial to DIAGNOSTIC and press the MAS button. The
station to activate the MAS LED. The MAS LED on the logic board OPEN button LED will flash once for every 5,000 cycle increment
is always enabled. When the operator is serviced after the MAS programmed and the CLOSE button LED will flash once for every
LED has started to flash, repeat the setup procedure to program 3 month increment programmed.
in the number or cycles desired until the next service visit OR To view how many cycles have elapsed since the last time the
press and hold the MAS button for 5 seconds in the PROGRAM MAS was programmed, set the selector dial to “Diagnostic” and
mode to reset the MAS with its current programmed value. To press the “MAS” button. Press the OPEN button; the OPEN LED
disable the MAS, follow the programming procedure above and will flash once for every 5,000 cycles that has elapsed. Press the
press the STOP button to reset the counter to zero. Every time CLOSE button; the CLOSE LED will flash once for every (3)
the operator leaves the close limit is counted as one cycle. months that has elapsed. Press the MAS button to exit.
To view how many cycles are programmed into the MAS, set the

22
 PROGRAMMING
OPEN MID STOP
Feature: The mid stop feature is to open the door to a preset point
prior to the fully open position. SELECTOR DIAL
Benefit: The door opens to a midpoint between open and close
reducing heating and cooling costs. The door will not cycle fully,
providing longer door and operator life.
To Program:
1. Close the door.
2. Turn selector dial to “PROGRAM.”
3. Press the “MID SET” button on logic board.
4. Press the OPEN button, wait until the door reaches the desired
mid stop height, then press the STOP button. Operation will vary
depending on
5. Press the “MID SET” button to complete programming. wiring type
6. Turn selector dial back to desired wiring type.
NOTE: A momentary open command will open the door fully from the
“Mid Stop” position. Once at the “Mid Stop,” photo eyes and other
safety devices will not open the door beyond the mid stop position,
except in E2 mode. The Timer to Close will work from the Mid Stop.
To clear the Mid Stop set the selector dial to Program and press and
hold the MID SET button for 5 seconds. The MID SET LED will flash
rapidly and turn off once the Mid Stop has been cleared.

DOWN MID STOP

A new feature is the down mid stop which can be enabled with the
purchase of the red/green light kit (RDGRNCARD). See kit WARNING
instructions of how to enable this new feature.
To prevent possible SEVERE INJURY or DEATH, install reversing
sensors when:
TIMER TO CLOSE
• The radio is used.
CAUTION
Feature: Timer automatically closes door after preset time. All safety
devices must be unobstructed. • The 3-button control station is out of sight of the door.
Benefit: The door will automatically close after pre set amount of • Or ANY other control (automatic or manual) is used.
time. Great for apartment buildings, fire stations and other Reversing devices are recommended for ALL installations.
applications where the end user wants the door to close
automatically after a specified amount of time.
Requirements: Must have at least one of the following safety devices
attached: CPS-L, CPS-LN4 or CPS3 card with valid safety device.
Wiring type must be set to TS, T or FSTS.
SELECTOR DIAL
TO PROGRAM MANUALLY (Method 1):
1. Close the door.
2. Turn the selector dial to PROGRAM.
3. Press the TIMER button on the logic board. AVERTISSEMENT
4. Press the STOP button to clear the timer.
5. Press the OPEN button for every 5 seconds the operator should wait
before attempting to close the door. Press the CLOSE button for
every 60 seconds the operator should wait before closing the door.
ATTENTION
6. Press the TIMER button to complete programming. The Operation will vary
OPEN/CLOSE button LEDs will flash to confirm the timer setting. depending on
wiring type
The OPEN LED will flash once for every 5 seconds programmed and
the CLOSE LED will flash once for every 60 seconds programmed.
7. Turn the selector dial to desired timer wiring type (TS ,T or FSTS).
Example: To close the door after 70 seconds. Turn selector dial to
Program, press the TIMER button, press the STOP button to clear the
timer, press the CLOSE button once for 60 seconds and press the
OPEN button twice for 10 seconds. Press the TIMER button to finish
programming the timer. Turn selector dial to desired timer wiring type.
(TS, T, FSTS).
23
 PROGRAMMING
TIMER TO CLOSE
PROGRAM TIMER TO CLOSE BY EXAMPLE (Method 2): To deactivate the timer from the open position press the STOP
To Program: button. The timer will be reactivated on the next operation
1. Close the door command. To deactivate the timer for more than one cycle, attach
2. Turn the selector dial to PROGRAM. a switch to 11 & 12 (Common and Timer Defeat).
3. Press and hold TIMER button for 5 seconds until TIMER LED All timer modes require a supervised safety device to be installed.
flashes. Reminders: FSTS wiring mode allows the Timer to Close to be
4. Press the OPEN button and wait for the door to reach full open activated by the Single Button Control (terminal 1) only. T wiring
or mid stop position. mode allows the door to attempt to close only one time for safety
5. Wait for desired amount of time to pass. (An internal stop purposes.
watch starts counting when the door stops moving.)
6. Press the TIMER button or CLOSE button to stop the timer. SELECTOR DIAL
(TIMER SET LED will turn on.)
7. Turn the selector dial to the desired wiring type.
Example: The door should close 15 seconds after a truck enters a
garage. To program the Timer to Close, turn the selector dial to
PROGRAM, press the TIMER button until the TIMER LED blinks,
press the OPEN button and wait until the door reaches the open
position, wait for the truck to pass through, count 15 seconds and
then press the CLOSE button.
NOTES: To read back the Timer to Close setting, turn the selector Operation will vary
depending on
dial to Diagnostic and press the TIMER button. The OPEN LED will wiring type
flash once for every 5 seconds programmed and the CLOSE LED
will flash once for every 60 seconds programmed.

CAR DEALER MODE

Feature: The car dealer mode uses the SBC (Single Button
Control input) to bring the door from a closed position to the
programmed Open Mid-Stop position and keep it at that location
even with multiple inputs.
Benefit: Provides energy cost savings by limiting the door
opening height. SELECTOR DIAL
Requirements: This feature works in conjunction with the
programmable Timer-to-Close feature. To enable this feature you
must first connect a treadle, photo eye or loop detector accessory
to the SBC input and must have at least one of the following
safety devices attached: CPS-L, CPS-LN4 or CPS3 card with valid
safety device. Wiring type must be set to TS or T.
Requirements:
1. Start with the door in the closed position. Operation will vary
2. Turn the SELECTOR DIAL to PROG. depending on wiring type

3. Push the TIMER button and release (Green Timer LED will
belit).
4. Push the MID button and release. This turns on the Car
DealerMode. (The Green Timer LED will flash 6 times
indicating theCar Dealer Mode is turned on)
5. Push the TIMER button and release.
6. Turn the SELECTOR DIAL to the desired wiring type (TS or T).
NOTE: To disable the Dealer Mode follow steps 2 and 3, then
press the MRT button and release (The GREEN TIMER LED will
flash 3 times indicating that the Car Dealer Mode is off).

24
 A U T O M AT I C A L LY L E A R N E D P R O G R A M M I N G
AUXILIARY REVERSAL SYSTEM / RPM SENSOR
Feature: This feature utilizes the RPM sensor connected to the LOSE OPEN
logic board to detect when the clutch slips and reverses the door
(clutch must be properly adjusted). In addition, the RPM
eliminates the need for a centrifugal switch on 1/3 and 1/2
horsepower single phase motors.
Benefit: The Auxiliary Reversal System reverses the operator
upon hitting an obstruction, preventing excessive door and RPM Sensor
operator damage. We require the use of safety devices for
primary safety protection. By removing the centrifugal for 1/3 and
1/2 horsepower single phase motors, the leading cause of motor
failures is eliminated. (Auxiliary Reversal System not applicable
on models GH and GT.)
Logic Board
NOTE: This feature is automatically learned and does not require
programming.

MAXIMUM RUN TIMER (MRT)

Feature: The operator can learn the time it takes to open or close
the door plus and an additional 10 seconds. SELECTOR DIAL
Benefit: If the operator does not meet its open or close limit
within the set time it will stop, limiting damage to the door and
operator.
To Program:
NOTE: The default setting for the MRT is 90 seconds. In the event
the application requires the MRT be manually learned for a longer
duration follow steps below.
1. Start with the door in the closed position.
2. Set the selector dial to “PROGRAM.”
Operation will vary
3. Press MRT button on logic board. depending on
wiring type
4. Press the OPEN button and wait for the door to reach the full
open limit.
5. Once the door has reached the open position, programming is
complete.
6. Turn dial to desired wiring type.
NOTE: To reset MRT only, turn selector dial to program and press
and hold the MRT button until the MAS led flashes rapidly.

25
 OPTIONAL PROGRAMMING

RED/GREEN WARNING LIGHT CARD TIMER SETTING RED LAMP HOLDER RECEIVES POWER
Feature: The Red/Green warning light card flashes a warning light
Timer setting equals Activates when the door closes and until
for 10 seconds prior to the Timer to Close activating the door to
close. zero close limit is activated
Benefit: Advanced warning of the door closing helps prevent Greater than 10 10 seconds before door starts to close
traffic collisions with the door. seconds and until close limit is activated
Light Control Module Operation: The green lights on the OPTION
Less than or equal to Activates when the door reaches the
BOARD will turn on if the board is seated properly and the power
10 seconds open limit or mid stop
is on. When the door reaches the full open limit or mid stop, the
timer circuit and the green lamp holder will be activated. (Green The red lamp holder receives power
lamp will not be activated if timer setting is less than 10 when the door opens and remains
seconds.) The red lamp holder will receive power as indicated at activated if the door is stopped manually
right. before reaching the mid stop or the open
Requirements: Must have the LiftMaster Red/Green warning light limit
kit RDGRNCARD and must have at least one of the following
safety devices attached: CPS-L, CPS-LN4 or CPS3. See
Red/Green warning light instructions for further details.

RESETTING FACTORY DEFAULTS - CLEARING MEMORY SELECTOR DIAL

To reset most of the user installed settings back to factory
defaults:
1. Turn the selector dial to DIAGNOSTIC.
2. Press and hold the STOP button for 5 seconds. The MAS LED
will flash momentarily when the factory defaults have been
restored.
3. Return the selector dial to the desired wiring type.
Factory Defaults:
a. Timer to close = 0 seconds Operation will vary
depending on
b. CPS-L photo eyes = unlearned wiring type
c. The Mid Stop is deactivated
d. The Maintenance Alert System is deactivated
e. The Maximum Run Timer is set to 90 seconds
f. Dealer Mode is deactivated
g. Restoring the operator to Factory Default will also disable this
feature. The remote controls will still be learned.
NOTE: Life of Operator feature (Odometer/Cycle Counter) and
programmed remote controls are not cleared.

26
 MAINTENANCE SCHEDULE
For use with Maintenance Alert System.
Check at the intervals listed in the following chart:

EVERY 3 MONTHS EVERY 6 MONTHS EVERY 12 MONTHS

OR OR OR
ITEM PROCEDURE EVERY MONTH 5,000 CYCLES 10,000 CYCLES 20,000 CYCLES
Drive Chain Check for excessive slack.
Check and adjust as required.
Lubricate. 
Sprockets Check set screw tightness.  
Clutch Check and adjust as required.  
Belt Check condition and tension.  
Fasteners Check and tighten as required.  
Manual Disconnect Check and operate.  
Bearings and Shafts Check for wear and lubricate. 
Safety Reversing Check alignment and
Sensors functionality.
WARNING 

HOW TO ORDER REPAIR PARTS

WARNING OUR LARGE SERVICE ORGANIZATION SPANS AMERICA
To avoid SERIOUS PERSONAL INJURY or DEATH from
electrocution, disconnect ALL electric power BEFORE Installation and service information are available.
performing ANY maintenance. Call our TOLL FREE number:
1-800-528-2806
 Use SAE 30 Oil (Never use grease or silicone spray). www.liftmaster.com
• Do not lubricate motor. Motor bearings are rated for
continuous operation.
• Do not lubricate clutch or V-belt.
 Repeat ALL procedures.
 Inspect and service whenever a malfunction is observed or
suspected.
AVERTISSEMENT
LIFE OF OPERATOR FEATURE
AVERTISSEMENT
(ODOMETER/CYCLE COUNTER)
The operator is equipped with an odometer to show how many
months and cycles the operator has performed from the time it
was installed. This feature can help determine how long the
operator has been in service.
1. Start with the door in the closed position.
2. Turn the SELECTOR DIAL to DIAG (diagnostic mode).
3. Press and release the MAS button on the logic board.
4. Press and release the MRT button on the logic board.
5. The open and close lights will flash. OPEN for every 5,000
cycles and CLOSE for every 3 months.
6. Return the SELECTOR DIAL to the desired wiring type.
NOTE: If the operator has not reached 5,000 cycles or 3 months,
there will be no indications.

27
ADVERTENCIA
 TROUBLESHOOTING
DIAGNOSTIC CHART
The logic board has several LEDs to assist in the installation and troubleshooting of the operator. The following chart should assist in
verifying the operator is functioning properly. Turn the selector dial to DIAGNOSTIC to keep the door from moving while
troubleshooting.

LED COLOR DEFINITION

Power Green Indicates that power is being generated for the logic board.

Stop Green Indicates a closed circuit between common and terminal 5. Pressing stop should turn off this LED.

Open Yellow Indicates a closed circuit between common and terminal 7. Pressing the open button should turn
ON this LED.

Close Yellow Indicates a closed circuit between common and terminal 6. Pressing the close button should turn
ON this LED.

Eyes Green Solid on indicates photo eyes learned. Flashing indicates photo eyes need to be connected or obstructed.
Solid off indicates no eyes learned.

Timer Defeat Yellow Solid on indicates a closed circuit between common and terminal 12. Timer to close will not close.

OLS Yellow Pressing the Open Limit Switch should turn ON this LED.

CLS Yellow Pressing the Close Limit Switch should turn ON this LED.

SLS Yellow Pressing the Sensing Limit Switch should turn ON this LED.

Edge Yellow Indicates a closed circuit between common and terminal 8. Pressing the edge should turn ON this LED.

Mid Stop Yellow Solid on indicates door is stopped on up or down mid stop. Flashing indicates MID STOP is being set.

Timer Enabled Green Solid on indicates TIMER is programmed and will activate from open or mid stop position. Flashing
indicates Timer is counting down and door will close after preset time.

SBC Yellow Indicates a closed circuit between common and terminal 1. Pressing the single button control station
should turn ON this LED.

MAS Yellow Indicates the Maintenance Alert System has been activated or an error code has been triggered.

Relay A Yellow Indicates open or close command has been given to the motor. LED turns on when OPEN/CLOSE button is
pressed.

Relay B Yellow Indicates open or close command has been given to the motor. LED turns on when OPEN/CLOSE button is
pressed.

28
TROUBLESHOOTING GUIDE
FAULT POSSIBLE CAUSE FIX
THE OPERATOR WILL a) No power supply ➤ Verify primary line voltage from power source.
NOT RESPOND TO ANY b) Operator control station is wired wrong ➤ Use the OPEN, CLOSE and STOP LEDs to help check correct wiring.
COMMANDS Verify that the board is accepting commands by using the onboard
station. Green light next to stop button must be on.
c) Interlock switch is activated ➤ Check Interlock(s). If more than one external interlock is present they
must be wired in series.
d) Dial still in programming or diagnostic ➤ Set dial to desired wiring type.
mode
e) Motor is malfunctioning ➤ Verify proper voltage getting to the motor (Check motor name plate).
f) Motor thermal overload tripped ➤ Check for obstructions and verify the door moves freely. Cycle operator
in constant pressure one full cycle open and close to reset fault. Check
to see if motor is hot. Allow motor to cool before attempting to move
door.
g) Failsafe switch is activated requiring ➤ Move switch to non-failsafe or connect a failsafe sensing device.
photo eyes
h) Off Board relay may need to be ➤ When the OPEN or CLOSE button is pressed, Relay A or B LED should
replaced see wiring diagram turn on and the door should move in the corresponding direction. If
Relay A or B lights and the door does not move, off board relay may
need to be replaced (see wiring diagram Off Board Relays).
i) Possible accessory malfunction ➤ Disconnect all devices, reattach them one at a time testing for a failure
after each one is replaced.
j) Possible logic board failure ➤ Replace logic board.

POWER LED IS NOT ON a) Loose secondary wiring connections ➤ Repair or replace connections or control transformer.
or a faulty control transformer
b) Logic board failure ➤ Replace logic board.
c) Interlock switch ➤ Check interlock(s).

STOP BUTTON LED IS a) Control station not connected or wired ➤ Check wiring to control station.
NOT ON correctly
b) Interlock switch ➤ Check interlock switch(es) for continuity.

THE DOOR WILL MOVE RPM sensor is not connected properly ➤ Check the RPM assembly for loose connections. Check that RPM wheel
ABOUT A FOOT THEN or may need to be replaced is turning when operator is running. Check for foreign matter blocking
STOP. AFTER STOPPING, optical lens.
ONLY CONSTANT ➤ Replace RPM sensor.
PRESSURE COMMANDS
WILL MOVE THE DOOR

THE DOOR WILL MOVE The Maximum Run Timer is not set ➤ Manually reprogram the Maximum Run Timer (page 25).
MOST OF THE WAY correctly OR reset the factory defaults (page 26).
TOWARDS A LIMIT THEN
STOP. AN EXTRA OPEN OR
CLOSE COMMAND IS ABLE
TO GET DOOR TO
COMPLETE CYCLE

THE DOOR WILL OPEN There may be a Mid Stop set ➤ Check to see if the Mid Stop LED is on. Clear the Mid Stop by turning
SOME BUT NOT the selector dial to program. Press and hold the MID STOP button for
COMPLETELY. AN EXTRA 5 seconds. Return dial to desired wiring type.
OPEN IS ABLE TO GET THE
DOOR TO OPEN
COMPLETELY

THE DOOR WILL OPEN BUT a) The photo eyes, edge or other sensing ➤ If the on board EYES LED is flashing, the photo eyes are misaligned or
WILL ONLY CLOSE AFTER device is obstructed or activated not connected. Remove any obstructions, check the safety device wires
A FIVE SECOND DELAY for continuity and shorts.
WITH CONSTANT b) The logic board thinks that the direct ➤ Unlearn the photo eyes from the memory by resetting factory defaults.
PRESSURE ON THE CLOSE connect photo eyes are attached and
BUTTON blocked
c) Failsafe switch set ➤ Slide switch to Non-Failsafe mode.

29
TROUBLESHOOTING ERROR CODES
Logic 3.0 operators incorporate a self diagnostic feature built into followed by a pause, an operator error has occurred. To view how
the MAS LED. In addition to indicating when routing maintenance many errors currently exist, turn the selector dial to DIAGNOSTIC
is due, the MAS LED can be used to troubleshoot some problems and press the OPEN button. To read out each individual error
with the operator. code (if more than one exists) press CLOSE. It is possible to have
If the MAS LED is flashing on and off rapidly, the Maintenance more than one error at a time.
Alert System has been triggered and the schedule operator The chart below can assist with identifying the flashes on the
service is due. If the MAS LED flashes 2 or more pulses in a row MAS LED.

ERROR CODE DESCRIPTION EFFECT DISPLAY CORRECTION

E1 MAS triggered (cycles or months) None normal operation 1 blink Reset MAS.

E2 No RPM input during opening or closing The door only responds to 2 blinks Clutch is slipping,
constant pressure commands. adjust clutch, or verify RPM
sensor connection or replace
RPM sensor.
NOTE: To relearn the RPM
sensor, move the door with a
constant pressure command.
The door will stop once
relearned and normal
operation will resume.

E3 (MRT) Maximum Run Time timed out The door stops before reaching 3 blinks First check Operator
the desired time. for any faults (i.e., Bad Limit
switch), manually learn Max
Run Timer (page 25)
OR reset factory defaults
(page 26).

E4 Obstruction sensed on closing Operator will be in the OPEN 4 blinks Cleared by removing
position. obstruction or realigning
photo eyes and giving a close
command.

E5 Stuck key button pressed for greater than Stuck key on 3-button station 5 blinks Stuck key must be
2 minutes. will not respond. unstuck before it will be
recognized as an input.

E6 Rotary dial in invalid position for greater The door will not respond to 6 blinks Rotary dial must be
than 30 seconds. the 3-button station or any set to a valid position.
other input.

E7 Failsafe Safety device faulted or not Normal operation (5 second 7 blinks Cleared when safety
connected for greater than 2 minutes constant pressure override device is cleared or
required to close). connected.

E8 Brownout Detected Operator will run as long as 8 blinks 1. Check AC line for
enough power is present. voltage.
2. Check transformer
secondary for low voltage. To
many accessories may be
connected to the transformer.

E9 Motor movement at invalid time Operator will continue to Flash on start Check relays and the
function normally for 5 operations of movement drive circuitry to insure
and then default to a constant that they are turning off.
pressure mode. Operator must run correctly
for two starts for the error to
be cleared.

NOTES: Error codes take priority over normal MAS LED operation. Error codes will repeat on the MAS every 1.5 seconds until cleared.
There may be more than one error present, but only the highest priority will flash. If the highest error is cleared, the next highest will
flash. All errors self-correct when the corrective action is taken and a reset is not needed.

30
TROUBLESHOOTING RADIO FUNCTIONALITY
The error codes will display at the radio LED.
NOTE: Radio receiver is compatible with 315MHz remotes

ERROR CODE SYMPTOM DISPLAY POSSIBLE PROBLEM CORRECTION

R1 No response from the remote Quick Flash Unlearned remote - Try re-learning the
A user tries to use a remote, remote (page 20).
but the RADIO LED only flashes
briefly and there is no response
from the operator.

R2 No response from the remote No LED Cannot recognize remote - Replace battery - OR -
activity A weak signal caused by a eliminate interference - OR-
discharged battery or outside obtain a qualified remote.
interference with the
radio - OR - the radio
being learned is not compatible
with the operator.

R3 The remote cannot be learned Radio LED Cannot recognize remote - Replace battery - OR -
turns off after A weak signal caused by a eliminate interference - OR-
30 seconds discharged battery or outside obtain a qualified remote.
interference interfering with the
learn process - OR - the radio
being learned is not compatible
with the operator.

R4 The remote cannot be learned 2 Blinks No free records - Erase all learned remotes
A user enters RADIO function and re-learn the desired
learning mode but there is no remote.
space left to add another remote.

R5 The remote cannot be learned 3 Blinks Duplicate remote - This remote already has a
A user enters RADIO function function associated with it. To
learning and selects the function change the function, erase all
to be learned. When the remote learned remotes and
button is pressed for learning, a re-learn the desired remote.
search reveals that remote
is already learned.

R6 Cannot close via constant pressure in IR LED flashes No safety device present - Obtain direct connect eyes or
C2, D1 or E2 modes. A safety device is required to a CPS3 device - OR - change
close via constant pressure. to a mode that does not
require constant pressure.

31
 ELECTRICAL BOX

6 3
5

9 10

K2 (K72-12515-1)
7

11

K1 (K72-10047-1)

32
 ELECTRICAL BOX LOGIC (VER 3.0)
For replacement of electrical box, motor or brake components be sure to match model number of your unit to kit number below to
ensure proper voltage requirements.

SERVICE KITS INDIVIDUAL PARTS

ITEM PART # DESCRIPTION ITEM PART # DESCRIPTION

K1 K72-10047 Limit shaft kit 1 13-10024 Limit nut
K72-10047-1 Limit shaft kit (3 HP) 2 23-10041 Limit switch
Complete with: Limit shaft, limit nuts, 3 K75-32268 Cover
limit bearings, limit sprocket, 4 21-14182 Transformer, 115/230V
interrupter cup, shim washers, 21-35057 Transformer, 460V
compression ring, roll pin, 21-5575 Transformer, 575V
and e-rings. 5 29-31244 Relay 24Vdc DPST - (A & B relay)
K2 K72-12515-1 Limit switch kit all operators
Complete with: Limit nut retainer, 6 29-31245 Relay 12Vdc SPDT - (C & D relay)
switch plates, backup plate, depress 3 Phase only
plates, limit switches, standoffs, 29-31229 Relay 24Vdc SPDT - (C relay)
screws, and locknuts. 1 Phase only
7 K74-31243 MOV 580V
8 K79-15016-1 RPM sensor assembly
*To order a complete electrical box kit, add a K- prefix to the
9 K1A5729 Logic board - Logic 3
model number of your operator. For example:
10 K2A761 Coaxial cable
T5011L3 (Operator) = K-T5011L3 (Electrical box kit)
11 K1C3196-3 Antenna

*Non stocked item. Please allow additional delivery time.

33
 MODEL T
22

19

20

21
18

K4 (K72-12508
K72-12509)

12 18
K5
K5 (K75-12870) 13

5 11

12
14

16
K3
15

17 23
3
10
8 5

6
9 K1 (71-B120
71-B240)

K3 (K72-12507
K72-12506)

K2 (K75-10177)

34
 REPAIR PARTS KITS - MODEL T

SERVICE KITS INDIVIDUAL PARTS

ITEM PART # DESCRIPTION ITEM PART # DESCRIPTION
K1 71-B120 Brake kit - 115 Volt models 1 22-120 Brake solenoid, 115V
71-B240 Brake kit - 230-460 Volt models 22-240 Brake solenoid, 230-460V
71-B575 Brake kit - 575 Volt models 22-575-1 Brake solenoid, 575V
Complete with: Brake hub kit, brake 2 80-14414 Feather key
release lever, brake disk, spring cup, 3 10-10166 Clutch plate
studs, compression springs, brake 4 11-10014 Clutch shaft
solenoid, solenoid cover, spacers,
5 12-10029 Bearing 3/4" I.D.
mounting plate, pressure plate, feather
key and conduit. 6 15-41B10G1 Sprocket, 48B10 x 3/4"
K2 K75-10177 Brake hub kit 7 16-5L300 Cogged belt
Complete with: Brake hub, set screw, 8 17-10165 5L Motor pulley 7" O.D.
push on fastener and feather key. 9 18-10164 Spring, clutch (1/3 & 1/2 HP)
K3 K72-12506 Clutch shaft kit (1/3 & 1/2 HP) 18-10168 Spring, clutch (3/4 & 1 HP)
Complete with: Clutch plate, clutch 10 39-10167 Clutch disc
shaft, bearing 3/4" I.D., sprocket 11 87-P-075 Push on fastener
41B10x3/4", 5L belt, motor pulley, 12 12-10331 Bearing, flange
spring, clutch disc, shim washers, 13 15-41B10G1 Sprocket, 41B10 x 3/4" (3/4 & 1 HP)
castle nut, flatwashers, cotterpin, roll 15-48B10GXX Sprocket, 48B10 x 3/4" (1/3 & 1/2 HP)
pins and push on fastener. 14 15-48B32GXX Sprocket, 48B32 x 3/4"
K72-12507 Clutch shaft kit (3/4 & 1 HP) 15 15-48B10G1 Sprocket, 48B10 x 3/4"
Complete with: Same as kit above. 16 19-41047 Roller chain, #41 x 47 pitches
K4 K72-12508 Output shaft kit (1/3 & 1/2 HP) 17 19-48033 Limit chain, #48 x 33 pitches
Complete with: Output shaft, bearing, 18 75-10170 Trolley
roller chain with master link, limit 19 75-10174 Front Idler Assembly
chain, shim washers, roll pins, push 20 K75-10259 Tracker Spacer
ring 3/4" and sprockets (41B32 & 21 10-10205 Header Bracket
48B10). 22 11-10130 Header Pivot Pin
K72-12509 Output shaft kit (3/4 & 1 HP) 23 K20-1033B-2LPMotor - models T3311L3, T3321L3
Complete with: Same as kit above. K20-3033B-4P Motor - models T3323L3, T3343L3
K5 K75-12870 Door arm kit K20-3033M-5 Motor - model T3353L3
Complete with: Curved arm, straight K20-1050B-2LPMotor - models T5011L3, T5021L3
arm, door bracket and hardware. K20-3050B-4P Motor - models T5023L3, T5043L3
K20-3050M-5 Motor - model T5053L3
NOT SHOWN
K20-1075B-2LPMotor - models T7511L3, T7521L3
DOOR DRIVE CHAIN KITS K20-3075B-4P Motor - models T7523L3, T7543L3
K20-3075M-5 Motor - model T7553L3
DOOR HEIGHT #48 CHAIN #41 CHAIN K20-1100B-2LPMotor - models T1011L3, T1021L3
(1/3 & 1/2 HP) (3/4 & 1 HP) K20-3100B-4P Motor - models T1023L3, T1043L3
Doors 8' to 10' 19-5810 19-5112 K20-3100M-5 Motor - model T1053L3
Doors to 12' 19-5812 19-5112 NOT SHOWN
Doors to 14' 19-5814 19-5114 01-19458 Owner’s Manual - English
Doors to 16' 19-5816 19-5116 01-19458SP Owner’s Manual - Spanish
Doors to 18' 19-5818 19-5118 01-19458FR Owner’s Manual - French
Doors to 20' 19-5820 19-5120
Doors 20' to 24' 19-5824 19-5124

35
 CONTROL CONNECTION DIAGRAM
IMPORTANT NOTES:
1. The 3-Button Control Station provided must be connected for operation.
2. If a STOP button is not used, a jumper must be placed between terminals 4 and 5.
3. When adding accessories, install them one at a time and test each one after it is added to ensure proper installation and operation
with the Commercial Door Operator.

3 BUTTON STATION OR 3 POSITION KEYSWITCH WITH SPRING RETURN TO CENTER AND STOP BUTTON
STANDARD 2 OR MORE KEY LOCKOUT
10 7 6 4 5 10 7 6 4 5 10 7 6 4 5

(RED)
(RED) (RED)
Open Open
Open Open Maintenance
Maintenance
Alert LED Close Alert LED Close
Maintenance
Close Close
Alert LED
Stop
Stop (WHITE)
(WHITE) (WHITE) Stop Stop

Keyswitch

2 BUTTON STATION OR 3 POSITION KEYSWITCH WITH SPRING RETURN TO CENTER

STANDARD 2 OR MORE
7 6 4 7 6 4

D1 & E2 D1 & E2
MODE ONLY MODE ONLY
Open Open Open

See note 2. See note 2.

Close Close Close
1 BUTTON STATION OR ANY AUXILIARY DEVICE RADIO CONTROLS
OPEN / CLOSE
OPEN / CLOSE R1 R2 R3
1 4
B2, T, TS & FSTS
MODE ONLY
Any Commercial Type
See note 2. LiftMaster Brand Receiver

SENSING DEVICE TO REVERSE OR STOP EXTERNAL INTERLOCK

Note: 11 and 4 are both the same common. Remove Factory Installed Jumper
Either is acceptable. When Interlock is Used
11 8
2 3 2 3

Sensing Device
ONE 2 OR MORE
All Wiring Types
©2008, The Chamberlain Group, Inc.
01-19458J All Rights Reserved