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IINNDDUUSSTTRRIIAALL DDUUTTYY CCOOMMMMEERRCCIIAALL DDOOOORR OOPPEERRAATTOORR
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
2
TABLE OF CONTENTS
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Emergency Disconnect System . . . . . . . . . . . . . . . . . . . . . . . . .10
Brake Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Clutch Adjustment and Auxiliary Reversal System . . . . . . . . . .11
POWER & GROUND WIRING
Safety Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Power Wiring Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Ground Wiring Connections . . . . . . . . . . . . . . . . . . . . . . . . . . .12
CONTROL STATION WIRING & INSTALLATION
Control Wiring Connections . . . . . . . . . . . . . . . . . . . . . . . . . . .13
External Radio Wiring Connections . . . . . . . . . . . . . . . . . . . . . .13
Mounting Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .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 Shedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Life of Operator Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
How to Order 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
WARNINGWARNING
WARNING
WARNINGWARNING
WARNING
CAUTIONCAUTION
WARNING
WARNING
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
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.
11.63"
*Door Height Plus 4 feet (minimum)
*23.43"
13.05"
Highest Point of Door Travel
4"
*
- For Units with Brake add 3-1/2”
(Standard on 3/4 & 1 HP models; Optional on 1/3 & 1/2 HP)
WEIGHTS AND DIMENSIONS
HANGING WEIGHT: 80-110 LBS.
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: . . . . . . . . . . . . . . . . . . . 1/3, 1/2, 3/4 and 1 HP
SPEED: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1725 RPM
VOLTAGE: . 115/230V 1 Phase, 208/230/380/460/575V 3 Phase
CURRENT: . . . . . . . . . . . . . . . . . . . . . . . . See Motor Nameplate
ELECTRICAL
TRANSFORMER: . . . . . . . . . . . . . . . . . . . . . . .24Vac Secondary
CONTROL STATION: . . . . . . . . . . . . . . .NEMA 3-Button Station
Open/Close/Stop w/LED
WIRING TYPE: . . . . . . . . . . . . . . . . . . . . . . . . . . .C2 (Standard)
Momentary contact to OPEN & 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: Heavy duty (5L) V-Belt
Secondary: #41 chain/sprocket;
Output: #48 chain (1/3 & 1/2 HP) or #41 chain (3/4 & 1 HP)
OUTPUT SHAFT SPEED: . . . . . . . . . . . . . . . . . . . . . . .140 RPM
DOOR SPEED: . . . . . . .11 - 12" per second depending on door
BRAKE: . . . . . . . . .Solenoid actuated disc brake on 3/4 & 1 HP
BEARINGS: . . . . . . . . . . . . .Output Shaft: Shielded Ball Bearing
Clutch Shaft: IronCopper sintered and oil impregnated
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.
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.
WARNING
WARNINGWARNING
Reel Chain
Around Idler and
Over Spacer Brackets
Master Link
Hex Nut
Lockwasher
Trolley Assembly
Trolley Carriage
Hex
Nut
Master Link
Take-up Bolt
Roller Chain
Front Idler Assembly
Trolley Carriage
Spacer Bracket
(Mounted Nylon Pad Side Up)
L - Slot
Straight Arm
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).
3.5"
(8.89 cm)
1.75"
(4.45 cm)
4" (10.16 cm)
Min.
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.
High Rise Point
Projection Line
Header Bracket
Cotterpins
Pivot Shaft
Door Travel
Projection
Carpenter’s
Level
High Point
of Travel
Header Wall
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.
WARNINGWARNING
WARNING
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 & 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.
WARNINGWARNING
WARNING
9
ADJUSTMENT
To avoid SERIOUS personal INJURY or DEATH from
electrocution, disconnect electric power BEFORE manually
moving limit nuts.
WARNING
WARNINGWARNING
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.
SAFETY
(Aux. Close) Limit Switch
CLOSE Limit Switch
OPEN Limit Switch
CLOSE OPEN
10
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.
WARNINGWARNING
WARNING
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.
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 3/4 and 1 horsepower models,
and is optional on 1/3 and 1/2 horsepower models. The brake is
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
system.
CLUTCH ADJUSTMENT AND AUXILIARY REVERSAL SYSTEM
The Auxiliary Reversal System is designed to protect the door
and motorized operator. It is NOT a substitute for a safety sensing
device. The Auxiliary Reversal System works in tandem with the
adjustable clutch to detect if a closing door runs into or comes
across an obstruction. If an obstruction is met and causes the
clutch to slip, the Auxiliary Reversal System will return the door
to the full open position when closing or stops the door when
opening.
1. Remove cotterpin from nut on the clutch shaft.
2. Back off clutch nut until there is very little tension on the
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
door by hand during travel.
4. Reinstall cotterpin.
ADJUSTMENT
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.
WARNINGWARNING
WARNING
Clutch Pulley
Cotterpin
Washer
Adjusting Nut
Spring
Clutch Pad
Clutch Plate
Brake Assembly
Brake Plate
Assembly
Cotterpin
Release Lever
Solenoid
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