Chamberlain MSLDCBB, LiftMster MSLDCBB Installation And Service Manual

Model MSLDCBB

(MEGA SLIDE UL)

1/2 HP COMMERCIAL DUTY SLIDE GATE OPERATOR

INSTALLATION AND SERVICE MANUAL

THIS UNIT IS A CLASS 1, 2, 3, OR 4 SLIDE GATE OPERATOR FOR USE IN SLIDE GATE APPLICATIONS

This unit must only be installed by an experienced technician

Disconnect AC power and batteries before servicing

IMPORTANT: Read and understand Warranty Page first.

Batteries (included) MUST be connected for proper operation of unit.

Use (2) LiftMaster 12VDC 7AH (Part # MBAT).

The Chamberlain Group, Inc.
845 Larch Avenue
Elmhurst, Illinois 60126-1196

www.liftmaster.com

Radio receiver

included

2

INTRODUCTION

Manual Release . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Installation Check Off List . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

UL325 Model Classifications . . . . . . . . . . . . . . . . . . . . . . . . . .5

Safety Installation Information . . . . . . . . . . . . . . . . . . . . . . . . .6

Recommended Site Layout . . . . . . . . . . . . . . . . . . . . . . . . . . .7

UL-325 Certified Photo Beams & Contact Edges . . . . . . . . . . .7

Unit Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

INSTALLATION

Concrete Pad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Anchors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Conduits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Chain Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Safety Edge Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

WIRING AND HOOKUP

AC Power Hookup (120/230 Vac) . . . . . . . . . . . . . . . . . . . . .10

Input Commands 1-8 (3-Button Control Station) . . . . . . . . .11

Accessory Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Battery Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Master/Second Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

TIMERS AND MODE SELECTIONS S1 & S2

Fast Run Timer - S1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Mode Selections - S1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Close Timer - S2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Mode Selections - S2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

ADJUSTMENTS

Right or Left Hand Operation . . . . . . . . . . . . . . . . . . . . . . . . .14

Limit Switch Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . .14

Instant Reverse Device (IRD) . . . . . . . . . . . . . . . . . . . . . . . .14

INSTALL THE RECEIVER

Wiring the Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

Set Security Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

Programming the Remote to the Receiver . . . . . . . . . . . . . .15

To Erase All Remote Control Codes . . . . . . . . . . . . . . . . . . . .15

OPERATION AND MAINTENANCE

General Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Battery Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Battery Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Battery Maintenance/Testing . . . . . . . . . . . . . . . . . . . . . . . . .16

Battery Handling/Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

TROUBLESHOOTING

Battery Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

Gate Not Operating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

SUGGESTED LOOP SENSOR LOCATIONS

Free Exit on Vehicle Approach . . . . . . . . . . . . . . . . . . . . . . . .18

Entry With Access Control Device . . . . . . . . . . . . . . . . . . . . .18

Dual Direction as Entry and Free Exit . . . . . . . . . . . . . . . . . .18

CONTROL BOARD LAYOUT

Component Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

MEGA SLIDE UL PARTS LIST

Part Numbers and Descriptions . . . . . . . . . . . . . . . . . . . . . . .20

Parts Shipped . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

TABLE OF CONTENTS

IMPORTANT SAFETY INSTRUCTIONS

WARNING - To reduce the risk of SERIOUS INJURY or DEATH:

1. READ AND FOLLOW ALL INSTRUCTIONS.

2. Never let children operate or play with gate controls. Keep
the remote control away from children.

3. Always keep people and objects away from the gate. NO ONE
SHOULD CROSS THE PATH OF THE MOVING GATE.

4. Test the gate operator monthly. The gate MUST reverse on
contact with a rigid object or stop when an object activates
the non-contact sensors. After adjusting the force or the limit
of travel, retest the gate operator. Failure to adjust and retest
the gate operator properly can increase the risk of injury or
death.

5. Use the emergency release only when the gate is not
moving.

6. KEEP GATES PROPERLY MAINTAINED. Read the owner's
manual. Have a qualified service person make repairs to gate
hardware.

7. The entrance is for vehicles only. Pedestrians must use
separate entrance.

8. SAVE THESE INSTRUCTIONS.

WARNING! Children should never be allowed to play near or
operate automatic gates. Failure to observe safe operating
procedure, train your customer properly, or install proper
warning signage may result in serious injury.

INTRODUCTION

Mechanical

Electrical

WARNING

CAUTION

WARNING

WARNING

WARNING

WARNING

WARNING

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 gate and/or the gate
operator if you do not comply with the cautionary statements that
accompany it. Read them carefully.

ACCESSORIES 21
WARRANTY 23
REPAIR PARTS AND SERVICE 24

3

MANUAL RELEASE

The MANUAL RELEASE switch is located on the left side of the
gate operator frame towards the chain. To operate the gate
manually, place the MANUAL RELEASE switch in the down
position. This will remove power to the motor allowing the gate to
be manually opened.

Normal Operation
Position

Manual Release
Position

Flip switch down to
disengage power to
motor and for manual
operation.

Flip switch up for
normal operation.

4

INSTALLATION CHECK OFF LIST

This Slide Gate operator is installed for use in a Class _____ installation.
Each item on this installation check off list should be verified by the installer.

______ Two warning signs securely installed on each side of gate panel (required).

______ 1 or 2 safety photo beams installed, one across each side of gate opening (required).

______ 1 or 2 stop photo beams installed on each side of fixed gate panel (required).

______ Customer advised that gate in for vehicular traffic only (required).

______ A separate pedestrian entry and/or exit is provided (required).

______ Contact edges installed and functional at all hazard or pinch points.

______ Safety guards installed covering all cantilever wheels (required).

______ All controls located far out of reach of gate, fixed panel and operator (required).

______ This class operator is approved for the application of the operator (1, 2, 3 or 4) (required).

______ A sphere with a 2-1/4" diameter cannot be pushed through the gate or fixed panel.

______ A safety screen/mesh is installed with a minimum height of 4' from ground.

______ Controls intended to reset gate after obstructed installed in line of sight (required).

______ Hard wired contact sensors located and wired to avoid any mechanical damage.

______ Customer instructed and is clear on proper use of gate operator (required).

______ Customer instructed on proper use of all control devices used with operator.

______ Safety instructions were reviewed and left with customer (required).

______ Installer offered a preventative service/maintenance contract.

______ A photo of completed installation taken from front and back of gate and dated.

______ Gate conforms to the recommended ASTM F 2200-02 requirements.

Customer’s Signature Date

Installer’s Signature Date

Customer and installer should retain a copy of this check off list for their records.

5

SAFETY ACCESSORY SELECTION

All UL325 compliant LiftMaster gate operators will accept external
entrapment protection devices to protect people from motorized
gate systems. UL325 requires that the type of entrapment
protection correctly matches each gate application. Below are the
six types of entrapment protection systems recognized by UL325
for use on this operator.

ENTRAPMENT PROTECTION TYPES

Type A: Inherent obstruction sensing system, self-contained

within the operator. This system must sense and initiate
the reverse of the gate within two seconds of contact
with a solid object.

Type B1: Connections provided for a non-contact device, such as

a photoelectric eye can be used as a secondary
protection.

Type B2: Connections provided for a contact sensor. A contact

device such as a gate edge can be used for secondary

protection.
Type C: Inherent adjustable clutch or pressure relief valve.
Type D: Connections provided for a control

requiring continuous pressure to

operate the operator open and close.
Type E: Built-in audio alarm. Examples

include sirens, horns or buzzers.

NOTE: UL requires that all installations must
have warning signs placed in plain view on
both sides of the gate to warn pedestrians of
the dangers of motorized gate systems.

Moving Gate Can Cause

Injury or Death

KEEP CLEAR! Gate may move at any
time without prior warning.

Do not let children operate the gate or
play in the gate area.

This entrance is for vehicles only.
Pedestrians must use separate entrance

UL325 MODEL CLASSIFICATIONS

UL325 ENTRAPMENT PROTECTION REQUIREMENTS

The chart above illustrates the entrapment protection
requirements for each of the four UL325 classes.

In order to complete a proper installation you must satisfy the
entrapment protection chart shown above. That means that
the installation must have one primary means of entrapment
protection and one independent secondary means of
entrapment protection. Both primary and secondary
entrapment protection methods must be designed, arranged
or configured to protect against entrapments in both the open
and close directions of gate travel.

For Example: For a slide gate system that is installed on a
single-family residence (UL325 Class I) you must provide the
following: As your primary type of entrapment protection you
must provide Type A inherent (built into the operator)
entrapment sensing and at least one of the following as your
secondary entrapment protection: Type B1- Non-contact
sensors such as photoelectric eyes, Type B2- Contact sensors
such as gate edges or Type D- Constant pressure control.

GATE OPERATOR ENTRAPMENT PROTECTION

Class
I & II

Class III

Class IV

A, B1, B2,

C or D

A, B1, B2,

C, D or E

A, B1, B2,

D or E

A, B1, B2

or D

A, B1 orB2A, B1, B2,

D or E

A, B1, B2

or C

A, B1, B2,

or C

A or C

B1, B2

or D

A

UL325 Slide Gate Operator Swing & Gate Barrier

Installation (Arm) Operator

Class

Primary

Type

Secondary

Typ e

Secondary

Type

Primary

Type

A, B1, B2,

C, D or E

CLASS I – RESIDENTIAL VEHICULAR GATE OPERATOR

A vehicular gate operator (or system) intended for use in a home of one-to four single family dwellings,
or a garage or parking area associated therewith.

CLASS II – COMMERCIAL/GENERAL ACCESS VEHICULAR GATE OPERATOR

A vehicular gate operator (or system) intended for use in a commercial location or building such as a
multi-family housing unit (five or more single family units) hotel, garage, retail store or other building
servicing the general public.

CLASS III – INDUSTRIAL/LIMITED ACCESS VEHICULAR GATE OPERATOR

A vehicular gate operator (or system) intended for use in a industrial location or building such as a
factory or loading dock area or other location not intended to service the general public.

CLASS IV – RESTRICTED ACCESS VEHICULAR GATE OPERATOR

A vehicular gate operator (or system) intended for use in a guarded industrial location or building such
as an airport security area or other restricted access locations not servicing the general public, in which
unauthorized access is prevented via supervision by security personnel.

6

1. Vehicular gate systems provide convenience and security. Gate systems are comprised of many component parts. The gate
operator is only one component. Each gate system is specifically designed for an individual application.

2. Gate operating system designers, installers and users must take into account the possible hazards associated with each individual
application. Improperly designed, installed or maintained systems can create risks for the user as well as the bystander. Gate
systems design and installation must reduce public exposure to potential hazards.

3. A gate operator can create high levels of force in its function as a component part of a gate system. Therefore, safety features
must be incorporated into every design. Specific safety features include:

• Gate Edges • Guards for Exposed Rollers • Photoelectric Sensors

• Screen Mesh • Vertical Posts • Instructional and Precautionary Signage

4. Install the gate operator only when:
a. The operator is appropriate for the construction and the usage class of the gate.
b. All openings of a horizontal slide gate are guarded or screened from the bottom of the gate to a minimum of 4' (1.2 m) above

the ground to prevent a 2 1/4" (6 cm) diameter sphere from passing through the openings anywhere in the gate, and in that
portion of the adjacent fence that the gate covers in the open position.

c. All exposed pinch points are eliminated or guarded, and guarding is supplied for exposed rollers.

5. The operator is intended for installation only on gates used for vehicles. Pedestrians must be supplied with a separate access
opening. The pedestrian access opening shall be designed to promote pedestrian usage. Locate the gate such that persons will not
come in contact with the vehicular gate during the entire path of travel of the vehicular gate.

6. The gate must be installed in a location so that enough clearance is supplied between the gate and adjacent structures when
opening and closing to reduce the risk of entrapment. Swinging gates shall not open into public access areas.

7. The gate must be properly installed and work freely in both directions prior to the installation of the gate operator.

8 Controls intended for user activation must be located at least six feet (6') away from any moving part of the gate and where the

user is prevented from reaching over, under, around or through the gate to operate the controls. Outdoor or easily accessible
controls shall have a security feature to prevent unauthorized use.

9. The Stop and/or Reset (if provided separately) must be located in the line-of-sight of the gate. Activation of the reset control shall
not cause the operator to start.

10. A minimum of two (2) WARNING SIGNS shall be installed, one on each side of the gate where easily visible.

11. For a gate operator utilizing a non-contact sensor:
a. Reference owner’s manual regarding placement of non-contact sensor for each type of application.
b. Care shall be exercised to reduce the risk of nuisance tripping, such as when a vehicle trips the sensor while the gate is still

moving.

c. One or more non-contact sensors shall be located where the risk of entrapment or obstruction exists, such as the perimeter

reachable by a moving gate or barrier.

12. For a gate operator utilizing a contact sensor such as an edge sensor:
a. One or more contact sensors shall be located where the risk of entrapment or obstruction exists, such as at the leading edge,

trailing edge and post mounted both inside and outside of a vehicular horizontal slide gate.
b. One or more contact sensors shall be located at the bottom edge of a vehicular vertical lift gate.
c. A hard wired contact sensor shall be located and its wiring arranged so the communication between the sensor and the gate

operator is not subject to mechanical damage.
d. A wireless contact sensor such as the one that transmits radio frequency (RF) signals to the gate operator for entrapment

protection functions shall be located where the transmission of the signals are not obstructed or impeded by building structures,

natural landscaping or similar obstruction. A wireless contact sensor shall function under the intended end-use conditions.
e. One or more contact sensors shall be located on the inside and outside leading edge of a swing gate. Additionally, if the bottom

edge of a swing gate is greater than 6" (152 mm) above the ground at any point in its arc of travel, one or more contact sensors

shall be located on the bottom edge.
f. One or more contact sensors shall be located at the bottom edge of a vertical barrier (arm).

SAFETY INSTALLATION INFORMATION

RECOMMENDED SITE LAYOUT EXAMPLE

Please use all safety devices that may apply to your installation to
achieve the safest operation. (This is a view from above gate.)

NOTE-1: Secondary entrapment device (UL-325)
NOTE-2: May be added as a third level of safety but is not to

replace beams marked NOTE-1

NOTE-3: Reversing edge or beam will re-open a closing gate

(use J5 #5)

NOTE-4: Stop edge will stop gate while contacted

(use JP2 connection)

NOTE: This unit to employ:
Primary entrapment is an “A1” inherent entrapment sensing
system with an audio alarm (reverses gate direction). Secondary
entrapment is a “B1” a non-contact, photoelectric beam, connect
at JP2 (stops gate, see NOTE-1). Use only UL recognized
sensors. At least one secondary “stop” photo beam should be
installed along the gate’s path that is covered when open. Photo
beams are to be installed according to their manufacturer’s
instructions and are to be placed in areas that pose a risk of
entrapment. A separate pedestrian door is required per UL-325.

It is recommended that all gates and operators be installed to
conform to that latest ASTM F2200-02 requirements.

7

This drawing is not to scale.

UL-325 CERTIFIED PHOTO BEAMS & CONTACT EDGES

Photo beams (non-contact sensor) required:

• OMRON/MMTC Model E3K-R10K4-NR
Retro-reflective type

• Allen-Bradley Model 60-2728 (with 2m cable)
Retro-reflective type

• Allen-Bradley Model 60-2729 (with 5 pin term)
Retro-reflective type

Safety edges (contact edge):

• Miller edge models
ME-120, ME-123, MG-020, MG020, MGR20, MGS20
Normally open contact

Safety Photo Beam (NOTE-2)

Stop Edge (NOTE-2)

Edge Sensor (NOTE-2,3)

Reversing Photo Beam (NOTE-2,3)

Roadway Safety Zone Backframe Safety Zone

Reversing Photo Beam (NOTE-2)

Edge Sensor (NOTE-2,3)

Reversing Photo Beam (NOTE-2,3) Stop Photo Beam (NOTE-1)

Stop Edge (NOTE-2)

Gate Operator

Stop Edge (NOTE-2)

Stop Edge (NOTE-2)

Stop Photo Beam (NOTE-1)

Stop Edge (NOTE-2)

Stop Photo Beam (NOTE-1)

Stationary/Fixed/Dead Panel

Stop Edge (NOTE-2)

Gate Stops Here

Gate Stops Here

Gate Operator

= Contact Edges

8

UNIT OVERVIEW

The LiftMaster model MEGA SLIDE UL slide gate operator is unique in the industry. Setting the MEGA SLIDE UL apart are many
features that make it the front runner in its class. With standard features like:

• Built in battery run - inherent 24 VDC backup power with regulated 24 VDC for accessories.

• High torque 1/2 HP 24 volt Permanent Magnet DC motor.

• Full service controller with eight inputs and LED indicators for loops, card reader, radio, etc.

• Continuous duty operation for most types of gates.

• Reversible gate direction for right or left handed operation.

• Instant Reverse Device (IRD) monitor senses obstructions going open and close.

• Automatic open of gate when power is lost if desired (with 15 second delay selection).

• ANTI-TAIL GATE with QUICK CLOSE feature STOP gate in close travel if tail-gating is sensed

• Upon complete system failure (lightning, surges, etc.) gate can be pushed open by hand.

• All rust proof aluminum construction with baked on powder coat enamel.

• Molded Polyethylene UV stabilized cover never needs wax or paint.

• Direct drive gear reducer eliminates many parts that might otherwise fail.

• State of the art MOSFET motor drive technology, NO contactors or relays.

• Dynamic motor braking to preserve gate stopping points.

• Soft start and stop in open and close travel motions.

• High reliability micro switches actuate through nylon limit nuts on a precision ground shaft.

• Maximum Run Timer for motor (MRT) with anti-tamper protection in closing direction.

• Each unit configurable as master or second operator.

• Safe 24 VDC low voltage motor and control wiring.

• LED diagnostics for easy trouble shooting.

• Closing timer adjustable from 1-31 seconds with on/off selection.

• Transient voltage protection on all inputs.

• Capable of being powered from 120 or 230 Vac, or UL Listed Class 2 Solar Power.

• On 120 Vac installations, unswitched duplex outlet gives convenient supply for 120 Vac accessories.

• Maximum weight of 1000 lbs. Maximum length of 30'. (Free moving operation)

•10year perforation warranty on cover and chassis with 2 years on electronics and mechanism.

• Input for safety edge device to reduce the possibility of entrapment – recommended.

• Input for non-contact sensing device (photo beam) for secondary entrapment protection.

• UL Listed device. (Standards by UL are UL-325, UL-991)

9

INSTALLATION

CONCRETE PAD

The concrete pad for operator mounting should be approximately
24" x 24" x 24" in order to provide adequate weight and structure
to insure proper and stable operation. Pad should be 6" above
finished grade (street level) or 6" above top of curb if one is
present. Be sure to position pad so that it is not so close that it
will interfere with the wheel mounting/axle bolts on the gate or
that it is so far away that the rear mounting holes in the base will
be too close to the edge of the concrete form.

NOTE: Pad must always extend below the frost line in areas
where the ground freezes.

ANCHORS

Proper anchors for fastening operator to pad will be a 1/2" x 6"
wedge anchor patterned to match the mounting base of the unit.
They should be installed with approximately 1" showing above
concrete surface in order to allow for the 1/4" thick base plate as
well as washers for leveling. Mounting hole pattern is 8 1/4" wide
by 9 1/8" deep. The rear mounting hole centers (nearest to gate)
will need to be between 5 1/4" and 7" from gate if the chain
brackets that are provided are to be used (based on a gate with a
2" x 2" box tubing frame).

CONDUITS

The area available in base of unit to position conduits is 10 3/4"
wide by 7 1/4" deep. All conduits must be cut down to 1 1/2" in
height to allow for the insertion of the equipment accessory shelf.
The equipment accessory shelf maybe installed after all conduits
are cut to proper height and all wiring has been properly routed.

NOTE: Do not attempt to hook up the AC power if wires are LIVE
or HOT. Be sure power is off.

CHAIN INSTALLATION

Before beginning to install the chain, be sure that the centerline of
the mounting holes in the chain brackets are 8 1/2" above the
mounting pad. Once the brackets have been installed and that the
mounting holes in the brackets line up with the bottom of idler
pulleys, connect one end of the chain to one end of the gate. Next
thread the chain through the idlers and drive sprocket, then
attach it to the other end of the gate. Cut chain so that the chain
tensioners will not be adjusted out, allowing for as much future
tightening as possible.

SAFETY EDGE INSTALLATION

See safety page in front of manual

It is highly recommended that a pressure sensing edge (safety
edge) be installed at the leading edge and at all hazard and pinch
points of the gate. Choose an edge that will cover the full height
of the gate. It should be installed securely and any coil cord used
to send the signal back to the operator should be cut so that
excess cord be eliminated to prevent it from getting tangled in the
gate or mechanism. Edges that are to REVERSE and re-open a
closing gate connect to J5 #5 and J5 #9 - #12. Edges that are to
STOP the gate that is opening or closing will connect to the 2
pins on the JP2 block near the center of the board.

Gate

5 1/4" Min.
7" Max.

9 1/8"

7 1/4"

Conduit Area

10 3/4"

8 1/4"

Chain

Operator
Frame

Allow enough space
between pad and
wheel bolts on gate.

Concrete
Pad

10

WIRING AND HOOKUP

To reduce the risk of SEVERE INJURY or DEATH:

• ANY maintenance to the operator or in the area near the
operator MUST not be performed until disconnecting the
electrical power and locking-out the power via the operator
power switch. Upon completion of maintenance the area
MUST be cleared and secured, at that time the unit may be
returned to service.

• Disconnecting power at the fuse box BEFORE proceeding.
Operator MUST be properly grounded and connected in
accordance with local electrical codes. NOTE: The operator

should be on a separate fused line of adequate capacity.

• ALL electrical connections MUST be made by a qualified

individual.

• DO NOT install any wiring or attempt to run the operator
without consulting the wiring diagram. We recommend that
you Install an optional reversing edge BEFORE proceeding with
the control station installation.

• ALL power wiring should be on a dedicated circuit and well
protected. The location of the power disconnect should be
visible and clearly labeled.

• ALL power and control wiring MUST be run in separate
conduit.

• BEFORE installing power wiring or control stations be sure to
follow all specifications and warnings described below. Failure
to do so may result in SEVERE INJURY to persons and/or
damage to operator.

WARNING

WARNING

Hot (Black)

Neutral (White)

Ground (Green

)

Duplex
Outlet Box

120 Vac

120 Vac

Ground

Neutral

AC POWER HOOKUP (120/230 Vac)

Be sure your main power is OFF before attempting to hook up the AC power. The AC wiring should be attached to the wires exiting the
conduit or pedestal post. Only use U.L. approved 14AWG (or larger) 600 volt insulated wire. NOTE: Do not connect any of the AC

power wires directly to the electronic control board. Connect the batteries after the AC power is restored.

120 Vac

Connect the BLACK wire to the incoming 120 Vac hot lead and
connect the WHITE wire to the incoming neutral lead. Connect the
GREEN wire to the ground.

230 Vac

Please purchase the 120 to 230 Vac conversion kit for 230 Vac
operation. See Accessory page.

INPUT COMMANDS CONNECTIONS

(Use common and normally open contacts from devices
connected to these inputs)

JP2 INPUT

This input will stop the gate and activate the siren.
This input is for connection to wired contact edge sensors at

pinch points and photo beams that run along either side the gate
panel when in open position (if dead panel is present one beam
should run along it).

INPUT COMMANDS - J5 CONNECTOR BLOCK AT TOP OF
CONTROL BOARD.

Control wire connections at low voltage terminal strip will be at
the top of the electronic control board. Make connections to the
appropriate points for the desired operation. Wires should be U.L.
approved 600 volt rated and at least 18 awg. All external control
devices must have normally open dry contacts. DO NOT

CONNECT ANY DEVICE WHICH WOULD DELIVER ANY VOLTAGE
OF ANY KIND TO THESE TERMINALS.

Terminals 9, 10, 11, 12 are the commons (0 VDC) used to
activate the following inputs.

1, 2, 3 OPEN: These inputs will trigger gate open when pulsed
or hold gate open with maintained contact. When released gate
will close if closing timer is on or if close input is given.

4, AUXILIARY OPEN: This is the wired line of sight, intended
manual reset input. Use this input to reset the unit after a 2nd
sequential obstruction is sensed and gate is locked with siren
running. This input normally functions as listed below.

Acts same as 1, 2, 3 above with S2-6 off. With S2-6 ON this
will operate as a pulse-open, pulse-close.

NOTE: Pulse to close will only work when gate is at full open
position.

SIREN will run for 5 minutes after 2nd sequential obstruction,
then turns itself off, however operator will require a reset signal
to J5 #4 to re-activate gate. In addition, cycling the AC power
switch will also reset unit.

5, SAFETY: Safety edge(s) and safety loop input. This function
will make the gate reverse and go back to the open position if it
was closing. Input is for all NORMALLY OPEN contact safety
devices. This input is disabled when gate is in the full closed
position.

6, CLOSE: ANTI-TAIL GATE close input. When using a vehicle
detector, you must use the presence contacts (N.O. and C.)
This input will QUICK close gate after input is applied and then
removed. It will stop the open cycle and reverse gate to close.
(Example: Car crosses over close loop before gate reaches full
open position – gate will reverse and close). NOTE: The close

input also acts as a safety-stop in that if gate is closing and a
tail-gater is sensed at the close input, the gate WILL STOP its
closing motion and not continue to close until the close input is
removed (car backs up) or gate is re-opened.

7, BACK-AWAY (FOR BARRIER ARM GATE ONLY): This input is
recommended for use with our Mega Arm barrier gates. For
your Mega Slide UL, please use terminals 1, 2 or 3 for your
free exit loop input.

8, SHADOW LOOP: This input operates as a hold open only
when gate is a full open position.

9, 10, 11, 12 COMMON: These inputs used for common
(0 VDC) to above listed functions.

Note: J5 inputs 1-8 are tied to LED indicators to assist in trouble
shooting.

3-BUTTON CONTROL STATION: Not already in place. See
diagram below.

11

J5 Input #1

J5 Input #6

Open Close Stop

JP2 Connector

(Note: Siren Will
Sound When Stop
Button Is Depressed)

J5 Commons #9-12

ACCESSORY CONNECTIONS

These terminals will provide battery backed power to 24 VDC
devices and are located at the bottom of the electronic control
board at J4 terminals 1 and 2. Terminal 1 is 24 VDC (+) and
number 2 is 0 VDC (-). Peripheral CLASS 2 low voltage devices
that require 24 VDC power maybe connected here (500 ma.
maximum). EXAMPLE: Vehicle detector, radio receiver.

RELAY OUTPUT K1: For class 1 and 2 installations, do not
disconnect siren. S1-6 must be on and S1-8 must be off.

BATTERY INSTALLATION

HOOKING UP BATTERY LEADS: Always hookup and turn on AC
power before installing batteries. After turning on AC power,

install two NEW, fully charged 12 volt DC batteries on shelf next
to motor. Connect red lead from operator to the positive (RED +)
terminal of one battery and black lead from the operator to the
(BLACK-) terminal of the OTHER battery. Place a jumper between
the remaining terminals of each battery if one is not already in
place. See diagram at right.

MASTER/SECOND WIRING

Master/second wire hook up:

STEP 1: In a master/second configuration, either unit can be

the master. Choose one unit to be the master and then direct all
control wiring to it (also install vehicle detectors and radio
receivers this unit)

STEP 2: At the MASTER, any input (at J5) with control
(detectors, receivers, keypads, timers, etc.) wires to it must
also be run to the same terminals of the second.

Along with these control wires, both operators MUST share a
common ground connection from chassis to chassis (or from
PCB common to PCB common (Ex: master gate J5 terminal
#12 to second gate J5 terminal #12)

EXAMPLE: If only open and close are used at master then three
wires will run between gates. More may be needed for

additional functions to be used.
STEP 3: If it is required that if one gate senses an obstruction,

the other reverses also, then 3 additional wires must be run
between the master J3 and second J3 as shown below. These
connections are for transmitting IRD (obstruction signals)
between both units. This will allow the master or second to
inform the other that a closing obstruction has occurred and
for it to reverse and open. SET switches on S2, 1-8 the same
on both gates.

12

FIGURE 1

–

12 VDC Battery
7-10 amp

+

–

12 VDC Battery
7-10 amp

Failure to install batteries correctly will cause
damage and will not be covered by warranty.

+

Black Lead

Jumper

Red Lead

FIGURE 2

Master-J5

123 45 678 9101112

Close

Open

12 34 56789101112

Second-J5

FIGURE 3

RX GND TX

12 34

Master-J3

IRD - Obstruction Signal Connections

Terminal 1 of Master must go to terminal 4
of Second and terminal 1 of Second must
go to terminal 4 of Master. Terminal 2 of
Master must go to terminal 2 of Second.

Second-J3

Common

12 34

RX GND TX

13

FAST RUN TIMER - SWITCH PACK S1 (1-5)

To change the FAST SPEED run timer, set the dip switches to add
up to the number of feet, minus one foot, for the total feet of
travel across roadway.

Example: If road is 15' wide, then set dip switches to add up to
14 seconds (dips 2, 3, 4 are on) which is 2 seconds + 4 seconds
+ 8 seconds = 14 seconds. You must set FULL SPEED to end
before the end of travel and allow the gate to go to the slow
speed before stopping.

MODE SELECTIONS - SWITCH PACK S1 (6-8)

SWITCH 6: FAIL SECURE MODE, (VER 6.351 or higher) with
AC power off, in continuous battery back up mode (S2 #8 off)
gate will not auto open if batteries get low. If batteries are low,
gate will stay open after an open command is given.

SWITCH 7: No longer used as of August 16, 2003. To be
redefined.

SWITCH 8: Not used at this time (ver 6.34 or higher only).

CLOSE TIMER - SWITCH PACK S2 (1-5)

On the MEGA SLIDE UL the switches 1-5 on S2 are for the
closing timer delay. If S2-7 is on, the gate will auto close by
timer. Default is S2-3 “on” to provide a 4 second delay if
activated.

MODE SELECTIONS - SWITCH PACK S2 (6-8)

SWITCH 6: Sets auxiliary open input terminal #4 at J5 to be
pulse open--pulse close (example: residential applications).

SWITCH 7 - AUTO CLOSE TIMER: Default is OFF. When on,

use S2 1-5 to set close time delay.
When close timer is selected, YOU must install vehicle and

pedestrian detection devices. It is strongly recommended that
photoelectric beams (eyes) be installed on BOTH sides of the
slide gate to reduce the possibility of injury to persons that
may attempt to walk through gate opening. Along with the
beams, it is strongly recommended that pressure sensing
edges be installed on the leading edge of the gate panel, and
any area that presents a PINCH POINT or risk of

ENTRAPMENT.
SWITCH 8 - AUTO OPEN ON POWER FAILURE: When switch

number 8 is in the ON position, the operator will automatically
open the gate approximately 15 seconds after the loss of
power. Once power is restored, the operator will resume
normal operation.

Seconds - -

1 - - 2 - - 4 - - 8 - -

S1

Shows
Default
Settings

Fast Run Timer 1-5

Mode Selection 6-8

1

2345678

ON

Mode Selection 6-8

Seconds - -

16

1 - - 2 - - 4 - - 8 - - 16

S2

Shows
Default
Settings

Close Timer 1-5

1

ON

2345678

OFF OFF OFF

OFF

OFF

OFF

ONON

OFF

ON

OFF

OFF OFF

OFF

OFF OFF

24VAC XFMRACC+

HBEAT BAT LO AC POWER

PWR

C NC NO

Aux Relay

R2 R11

D1

Q1

DC

1

1

K1

D11 D12

R13

D14

U19

J4

F3

F4

F1

F2

1A DC

IRD1

R63

J1

ACC– BAT–

BAT– MOV

BAT+ MOTOR

MOTOR

AUX LIMITS

1

J2

J3

J5

M/S

JP2

S3

1

Q2

T2

1234567891

Ø

11 12

T1

OPEN 1

D15

C7

X2

C19

D7

OLS

R1

U1

C2

C3

C4

C1

U4

R12

S1

D6

OPEN

D5

BRAKE

D4

CLOSE

D3

CLS

D2

IRD

OPEN 2

D16

R3

Ø

OPEN 3

D17

AUX 4

D18

SAFETY 5

D19

CLOSE 6

D22

BACK 7

D23

SHADOW 8

D24

OPEN

CLOSE

MANUAL

R1

Ø

R9

R38

R15

R37

C8

C2

Ø

C12
U12

U1

Ø

+

R8

R7

R6

R5 U2

U3

CPU

U5

U6

U7

X1

R4

R3

D8

T4T3T6T5T8

T7

C15

C2

D27

Q6

Q5

F5

C22

C18

U18

12345678S212345678

D1

Ø

R14

R18

R21

R24

R36

R42

R47

R53

R35 R41 R46 R5ØR61

C16

R17

R16

D29

Q4

D28

D26

C6

D25 – B2 +

U8 U9

U16

U11 U13 U14 U15

D9

R23

R22

R26

R25

R19

B1

R2

Ø

C5

+

+

R34

R33

R4

Ø

R39

R45

R44

R58

DX3

R49

R48

R43

R51

WARNING FOR
CONTINUOUS
PROTECTION
AGAINST FIRE
REPLACE ONLY
WITH THE SAME
TYPE AND RATING
OF FUSE

R43

R6

Ø

R59

D21

D2

Ø

R62

DX1

TR

DX4

R57

R56

C13

DX2

R55

TIMERS AND MODE SELECTIONS S1 & S2

14

RIGHT OR LEFT HAND OPERATION

The MEGA SLIDE UL allows for the “handing” or reversing of the
operator’s direction of movement in relation to the unit’s normal
operation.

STEP 1: Before power up, switch bank S1 switch #7 must be
on as shown in Figure 1.

STEP 2: Set the manual open/close switch (S3) to close. Turn
on the AC power and connect the batteries. Run the gate open
and close with the S3 manual switch.

NOTE: After the operator is reversed, the OPEN LED corresponds
to the Close Limit and the CLOSE LED corresponds to the open
limit.

LIMIT SWITCH ADJUSTMENTS

It is advised to set limit switches as close as possible BEFORE
connecting power. In order to adjust limit nuts, the detent plate
must be pushed down to allow free movement. Spinning the nut
closer to the switch will cause the gate to stop sooner when
approaching that switch. Spinning it away will delay the nut in
reaching that switch. With power disconnected, (batteries and AC
power) gate can be pushed open and closed to assist in limit
switch adjustments. After initial settings connect power then run
gate open and close to fine tune settings.

Remember to set the fast run timer (see page 12) to allow gate to
run at the fast speed for as much of the gate travel as possible,
but still ensuring that it will slow down just before reaching the
closed position.

INSTANT REVERSE DEVICE (IRD)

The instant reverse device is an internal circuit that continuously
monitors the motors current for increased draw. While running
gate open and closed, turn IRD1 fully to the left (CCW) then back
to the right (CW) in small increments while obstructing the gate
in the closing motion. Set sensitivity to a level that will only
reverse gate when an obstruction is encountered. If obstructed
while closing, gate will stop and reverse to the open position,
pause until next command then time out (using the time delay set
at S-2 switches 1-5) and then close. If gate is opening when
obstructed, gate will stop its open travel, then close. If inputs are
present, gate will remain stopped

WARNING: Instant reverse device (IRD) should be tested
weekly to insure proper operation. If adjustments are required,
refer to above paragraph.

ADJUSTMENTS

S1

1

ON

2345678

OFF

ON

OFF

OFF OFF

OFF

OFF

OFF

ON
OFF

S1, #7 to be turned ON before power up
to enable reverse of operator.

FIGURE 1

RIGHT HAND OPERATION

NOTE: Unit ships out as a right hand (default wiring setup).

Righthand operation is
viewed from the same side
of the gate as the operator
with the operator to your right.

You

Operator

Gate

FIGURE 2

15

INSTALL THE RECEIVER

NOTICE: To comply with FCC and or Industry Canada (IC) rules, adjustment or modifications of
this receiver and/or transmitter are prohibited, except for changing the code setting or replacing
the battery. THERE ARE NO OTHER USER SERVICEABLE PARTS.

Tested to Comply with FCC Standards FOR HOME OR OFFICE USE. Operation is subject to the
following two conditions: (1) this device may not cause harmful interference, and (2) this device
must accept any interference received, including interference that may cause undesired operation.

WIRING THE RECEIVER

Contacts 1 and 2 on the receiver terminal strip are for power. The
power terminals are unpolarized. Connect terminals 1 and 2 to
the accessory power terminals on the J4 terminal strip at the
bottom of the logic board (Figure 1).

Contacts 3 and 4 on the receiver terminal strip are for a common
and a relay. Connect terminals 3 and 4 to terminals 1 and 10 on
the J5 terminal strip at the top of the logic board.

NOTE: Auxiliary Pin 4 can be used for push to open/push to close
functionality.

SET SECURITY MODE

The Universal Receiver can be used with up to 15 rolling code
remotes or passwords in HIGH security mode. Alternately, it can
be used with up to 31 of any type remote in NORMAL security
mode, including any combination of rolling code, billion code
(390Mhz only), or dip switch remotes.

The jumper must be set at the HIGH position for the receiver to
operate in HIGH security mode. It must be set at NORMAL
position to operate at the NORMAL mode (Figure 2).

When changing from NORMAL to HIGH security mode, any
previous remote codes must be erased. Repeat Steps 2 and 3 in
the Programming Section below to reprogram the receiver for
each remote control in use.

The receiver is factory set at HIGH.

PROGRAMMING THE REMOTE TO THE RECEIVER

STEP 1: Pry open the front panel of receiver case with a coin or
a screwdriver. Re-connect power to opener (Figure 3).

STEP 2: Press and release the “learn” button on the receiver.
The learn indicator light will glow steadily for 30 seconds.

STEP 3: Within 30 seconds, press and hold the button on the
hand-held remote that you wish to operate your gate.

The opener will now operate when the push button on either the
receiver or the remote control is pressed.

Repeat Steps 2 and 3 for each remote control that will be used to
operate the gate.

TO ERASE ALL REMOTE CONTROL CODES

Press and hold the “learn” button on the receiver panel until the
indicator light turns off (about 6 seconds). All remote codes are
now erased. Then follow the steps above to reprogram each
remote control.

HBEAT B AT LO AC POWER

y

R11

DC

1

K1

D11 D12

R13

D14

U19

J4

F3

F4

F1

F2

1A DC

IRD1

R63

BAT– MOV

MOTOR

TS

J3

J5

M/S

JP2

S3

1

Q2

T2

1234567891

Ø

11 12

T1

OPEN 1

D15

C7

X2

C19

C2

C3

C4

U4

R12

OPEN 2

D16

R3

Ø

OPEN 3

D17

AUX 4

D18

SAFETY 5

D19

CLOSE 6

D22

BACK 7

D23

SHADOW 8

D24

OPEN

CLOSE

MANUAL

R38

R15

R37

C8

C2

Ø

C12
U12

U1

Ø

+

U2

U3

CPU

U5

U6

U7

X1

T4
T3

T6
T5

T8
T7

C15

C2

D27

Q6

Q5

F5

C22

C18

U18

78S212345678

D1

Ø

R14

R18

R21

R24

R36

R42

R47

R53

R35 R41 R46 R5ØR61

C16

R17

R16

D29

Q4

D28

D26

C6

D25 – B

U8 U9

U16

U11 U13 U14 U15

R23

R22

R26

R25

R19

B1

R2

Ø

C5

+

+

R34

R33

R4

Ø

R39

R45

R44

R58

DX3

R49

R48

R43

R51

WARNING FOR
CONTINUOUS
PROTECTION
AGAINST FIRE
REPLACE ONLY
WITH THE SAME
TYPE AND RATING
OF FUSE

R43

R6

Ø

R59

D21

D2

Ø

R62

DX1

TR

DX4

R57

R56

C13

DX2

R55

24VAC XFMRACC+

HBEAT BAT LO AC POWER

PWR

C NC NO

Aux Relay

R2 R11

D1

Q1

DC

1

1

K1

D11 D12

R13

D14

U19

J4

F3

F4

F1

F2

1A DC

IRD1

R63

J1

ACC– BAT–

BAT– MOV

BAT+ MOTOR

MOTOR

AUX LIMITS

1

J2

J3

J5

M/S

JP2

S3

1

Q2

T2

1234567891

Ø

11 12

T1

OPEN 1

D15

C7

X2

C19

D7

OLS

R1

U1

C2

C3

C4

C1

U4

R12

S1

D6

OPEN

D5

BRAKE

D4

CLOSE

D3

CLS

D2

IRD

OPEN 2

D16

R3

Ø

OPEN 3

D17

AUX 4

D18

SAFETY 5

D19

CLOSE 6

D22

BACK 7

D23

SHADOW 8

D24

OPEN

CLOSE

MANUAL

R1

Ø

R9

R38

R15

R37

C8

C2

Ø

C12
U12

U1

Ø

+

R8

R7

R6

R5 U2

U3

CPU

U5

U6

U7

X1

R4

R3

D8

T4T3T6T5T8

T7

C15

C2

D27

Q6

Q5

F5

C22

C18

U18

12345678S212345678

D1

Ø

R14

R18

R21

R24

R36

R42

R47

R53

R35 R41 R46 R5ØR61

C16

R17

R16

D29

Q4

D28

D26

C6

D25 – B2 +

U8 U9

U16

U11 U13 U14 U15

D9

R23

R22

R26

R25

R19

B1

R2

Ø

C5

+

+

R34

R33

R4

Ø

R39

R45

R44

R58

DX3

R49

R48

R43

R51

WARNING FOR
CONTINUOUS
PROTECTION
AGAINST FIRE
REPLACE ONLY
WITH THE SAME
TYPE AND RATING
OF FUSE

R43

R6

Ø

R59

D21

D2

Ø

R62

DX1

TR

DX4

R57

R56

C13

DX2

R55

FIGURE 1

ACC+

HBEAT BAT LO AC POWER

1

D11 D12

R13

D14

U19

J4

ACC– BAT–

BAT– MOV

BAT+

P1 to J4 Accessory Power
P2 to J4 Accessory Power
P3 to J5 Terminal 1
P4 to J5 Terminal 10

+

–

10

1

2

3

4

1

P1 - P4

J4

J5

To prevent possible SERIOUS INJURY or DEATH from a moving
gate or garage door:

• ALWAYS keep remote controls out of reach of children.
NEVER permit children to operate, or play with remote control
transmitters.

• Activate gate or door ONLY when it can be seen clearly, is
properly adjusted, and there are no obstructions to door travel.

• ALWAYS keep gate or garage door in sight until completely closed

NEVER permit anyone to cross path of moving gate or door.

WARNING

WARNINGWARNING

Security Mode
Terminals

FIGURE 2

OPENING RECEIVER

Connect
Antenna

FIGURE 3

Jumper

HIGH

SECURITY MODE

OPEN RECEIVER

24V

Security Mode
Terminals

HIGH

12V

Indicator Light

Learn Button

C
P2
M

NORM

(Not
Provided)

Jumper

NORMAL

SECURITY MODE

Output Duration
Terminals

Security Mode

Power Supply
Jumper

16

OPERATION AND MAINTENANCE

GENERAL SERVICE

1) Belt loose or needs replacement, adjust with 4 bolts that

support motor to allow 1/4" play.

2) Charge voltage for batteries should be 27.5 +0.05, -0 Vdc

with batteries disconnected (Set with R63, shown on the
Control Board Layout page).

3) Replace batteries with Liftmaster P/N MBAT batteries.

Replace in pairs.

BATTERY DISPOSAL

Replaced batteries must be treated as a hazardous waste and
disposed of in accordance with State, Local and Federal
Regulations. See the battery manufacturer’s Material Safety Data
Sheets (01-30839 “MSDS Sheets, Battery, Standard”).

BATTERY REPLACEMENT

Service Kits are available for battery replacement. Please contact
Technical Support (see back of this document for contact
information).

To avoid SERIOUS PERSONAL INJURY or DEATH from
electrocution, disconnect ALL electric power BEFORE
performing ANY maintenance.

WARNING

WARNING

EVERY EVERY EVERY EVERY

ITEM PROCEDURE 3 MONTHS 6 MONTHS 12 MONTHS 24 MONTHS

Fasteners Check and tighten as required.  ◆

Bearings & Shafts Check for wear and lubricate.  ◆

Battery Maintenance Replace batteries. ◆ 

Check at the intervals listed in the following chart:

 Repeat ALL procedures.

BATTERY MAINTENANCE / TESTING

The batteries are maintenance free. However, to insure proper and
safe operation, it is recommended that the batteries be replaced
every two years. Battery testing is conducted automatically. See
the Battery Test Description section for manually initiating the
battery test.

BATTERY HANDLING / STORAGE

Refer to the battery manufacturer’s Material Safety Data Sheets
(01-30839 “MSDS Sheets, Battery, Standard”). LiftMaster does
not recommend storage of batteries in the field. Batteries are
intended for immediate use.

17

WARNING: Disconnect batteries and AC power before servicing
any mechanical or moving components.

BATTERY CHECKOUT

When the batteries become weak the gate will begin to run
noticeably slower. (NOTE: Batteries should only be checked when
you are sure they have had adequate time to fully charge.) Turn
off the AC power and run gate for 5 to 10 cycles while observing
low battery indicator LED D12. If LED 12 comes ON, batteries are
too weak to function properly. If LED 12 does not light, then
voltage should be checked as they still maybe near failure.
Correct voltage is approximately 25.5VDC. (NOTE: If LED D12

does light, gate will open to conserve batteries in this test or in a
real power loss, even if mode switch 8 on S2 is off.) Return of AC

power will clear low battery indicator. Correct charge voltage is

27.5 VDC with batteries not connected (Set with R63, shown on
the Control Board Layout page).

TROUBLESHOOTING

Gate will not operate.

Is the HBEAT flashing?

Check the battery

connections.

Check fuse F4.

Replace if

blown.

No

Is the battery lo LED on?

Is the HBEAT
flashing now?

Yes

Is S2-8 (open on AC fail) on?

Yes

No

No

Is the AC power

LED on?

Yes

No

Restore AC

power

and/or turn

AC power

switch ON.

Is the AC power

LED on now?

Is the shadow input active?

No

Yes

No

Allow unit to

charge before

operation.

Check fuse F3,

Replace if blown.

No

Is the Safety, Backaway, or

Open input active?

No

Does the IRD light while

operating?

Remove the active input to

allow the gate to open.

Yes

Remove the active input to

allow the gate to close.

Is the IRD flashing?

Make sure the gate is not binding,

then adjust the IRD. Verify the

gate reverses when obstructed.

Yes

Yes

Is the IRD on solid?

Yes

Yes

No

Is the Entrapment

Alarm On?

Yes

No

The Edge input

(JP2) is active.

Clear obstruction

to restore

operation.

The run timer has expired.
Inspect the belt for slippage and
verify the fast run timer settings

are correct. Re-issue a command

to start the gate.

No

Yes

Is the Entrapment

Alarm On?

Yes

No

A double entrapment (E2)

condition has recently

occurred. Clear all

obstructions and use the

AUX input to reset the

alarm and gate.

A double entrapment (E2)

condition has occurred

over 5 minutes ago. Clear

all the obstructions and

use the AUX input to reset

the gate.

GATE NOT OPERATING

18

SUGGESTED LOOP SENSOR LOCATIONS

FREE EXIT ON VEHICLE APPROACH

Gate will open when sensed by open loop and then close once all
loops are cleared if the close timer is on. Close input can be used
to close gate before timer expires (Figure 1).

Terminal #1, 2, and 3 are open inputs.
Terminal #5 is safety input.

ENTRY WITH ACCESS CONTROL DEVICE

Gate will open when activated by an access control device. When
timer expires (if used), gate will close (Figure 2).

Terminal #5 is safety input.
Terminals #1, 2, and 3 are open inputs.

DUAL DIRECTION AS ENTRY AND FREE EXIT

Dual direction is a combination of both of the above
configurations to provide the ability for traffic to enter or exit in
the same lane (Figure 3).

DO NOT ALLOW CONTROL DEVICES TO BE WITHIN 10' OF GATE
OR OPERATOR

RECOMMENDATION 1: If vehicle detectors are used to open or
close the gate, use of the presence contacts are recommended.
Using the pulse contacts will REDUCE the gate’s safe operation.

RECOMMENDATION 2: Use safety pressure sensing edges to
prevent entrapment.

RECOMMENDATION 3: Install ALL access control devices
within view of gate.

FIGURE 1

FIGURE 2

Card Reader
Tele-entry
Radio Control

FIGURE 3

Card Reader
Tele-entry
Radio Control

Safety
Loop

Mega Slide UL

Safety
Loop

Safety
Loop

Open
Loop

Mega Slide UL

Safety
Loop

Open
Loop

Mega Slide UL

19

24VAC XFMRACC+

HBEAT BAT LO AC POWER

PWR

C NC NO

Aux Relay

R2 R11

D1

Q1

DC

1

1

K1

D11 D12

R13

D14

U19

J4

F3

F4

F1

F2

1A DC

IRD1

R63

J1

ACC– BAT–

BAT– MOV

BAT+ MOTOR

MOTOR

AUX LIMITS

1

J2

J3

J5

M/S

JP2

S3

1

Q2

T2

1234567891

Ø

11 12

T1

OPEN 1

D15

C7

X2

C19

D7

OLS

R1

U1

C2

C3

C4

C1

U4

R12

S1

D6

OPEN

D5

BRAKE

D4

CLOSE

D3

CLS

D2

IRD

OPEN 2

D16

R3

Ø

OPEN 3

D17

AUX 4

D18

SAFETY 5

D19

CLOSE 6

D22

BACK 7

D23

SHADOW 8

D24

OPEN

CLOSE

MANUAL

R1

Ø

R9

R38

R15

R37

C8

C2

Ø

C12
U12

U1

Ø

+

R8

R7

R6

R5 U2

U3

CPU

U5

U6

U7

X1

R4

R3

D8

T4
T3

T6
T5

T8
T7

C15

C2

D27

Q6

Q5

F5

C22

C18

U18

12345678S212345678

D1

Ø

R14

R18

R21

R24

R36

R42

R47

R53

R35 R41 R46 R5ØR61

C16

R17

R16

D29

Q4

D28

D26

C6

D25 – B2 +

U8 U9

U16

U11 U13 U14 U15

D9

R23

R22

R26

R25

R19

B1

R2

Ø

C5

+

+

R34

R33

R4

Ø

R39

R45

R44

R58

DX3

R49

R48

R43

R51

WARNING FOR
CONTINUOUS
PROTECTION
AGAINST FIRE
REPLACE ONLY
WITH THE SAME
TYPE AND RATING
OF FUSE

R43

R6

Ø

R59

D21

D2

Ø

R62

DX1

TR

DX4

R57

R56

C13

DX2

R55

OPEN LIMIT SENSOR

OPEN DRIVERS ON

MOTOR BRAKE ON

CLOSE DRIVERS ON

CLOSE LIMIT SENSOR

OBSTRUCTION SENSE

(IRD AND MRT)

RELAY INDICATOR

RELAY (OPTIONAL)

K1 RELAY
TERMINALS
(OPTIONAL)

24VDC

(REGULATED)

BLK RED YEL YEL BLU ORG

BATTERY

CHARGE

ADJUST

COMMONS - 0VDC

SHADOW LOOP

BACK AWAY-FREE EXIT LOOP

CLOSE GATE INPUT-CLOSE LOOP

SAFETY LOOP INPUT

AUX OPEN / RESET (PULSE OPEN/CLOSE)

OPEN GATE INPUTS-READER, PUSH BUTTON

CONTROL BOARD LAYOUT

COMPONENT LOCATIONS

Accessory power is 24VDC regulated rated at 500 ma. [1/2 amp].

J5 #4 for use with hard wired line of sight devices to open gate and reset unit.

D11: Heart beat. Shows that processor and program routine are running properly.
D12: Battery status. See diagnostic procedures on page 14.
D14: AC power indicator. Shows that AC power is present.

F3: 15 amp ATO type fuse for 24 Vac input power. (U.L. listed fuse only.)
F4: 15 amp ATO type fuse for 24VDC battery input power. (U.L. listed fuse only.)

JP2: Input for photo beam used as secondary entrapment protection.

20

MEGA SLIDE UL PARTS LIST

PART NUMBERS AND DESCRIPTIONS

ITEM PART NUMBER DESCRIPTION

1 MS001 Controller - CPU
* MS002 J5 Connector

(on PCB)

2 MS003 1/2 HP High Torque Motor

24 VDC

* MBAT 12VDC 7AH Battery

2 required (included)
3 MS005 Gear Reducer 10:1
4 MS006 1/4" Aluminum Chassis (frame)
5 MS007 Drive Belt
6 MS010 Reducer Pulley 5"
7 MS009 Motor Pulley 2"
8 MS351 Motor Breaker/Disconnect
9 MS041 Drive Gear

10 MS043 Limit Nuts
11 MS013 Detent Plate

ITEM PART NUMBER DESCRIPTION

12 MS014 Siren (100 db)
13 MS015 Transformer

(120/230 Vac - 24 Vac)

14 MS016 120 Vac Duplex Outlet (120 Vac

Only)

* MS017 Bolt and Nut (4) Reducer
15 MS018 Idler Pulley Bolt, Washer and Nut
16 MS019 120 Vac On/Off Switch
17 MS040 Idler Pulley (UHMW)
18 MS021 Removable Accessory Shelf
19 MS044 Limit Switch

* MS023 Plexi Window (with bend)

* MS020 Unit Cover
20 MS202 #41 Nickel Plated Drive Chain

(10' coils, 2 required)
* 73A3 Filter Module
* 74-31243 Surge Suppressor

( * ) parts not shown

PARTS SHIPPED

1 MEGA SLIDE UL Operator
1 Controller CPU (MS001 UL)
1 Unit Cover (MS020)
1 Accessory Shelf
1 Installation and Service Manual
2 Gate Pull Tabs with Hardware

(MS205 Pull Tabs, MS204 Chain Bolt)

1 20' of #41 Nickel Plated Drive Chain

(10' coils, 2 required MS202)
2 Warning Signs
2 7Ah batteries

INSIDE VIEW

6

14

11

310

19

7

5

DCS

2

1/2 HP

16

8

18

4

12

1

13

17

20

REAR VIEW

9

15

21

ACCESSORIES FOR MEGA SLIDE OPERATORS

Security✚®Single Button Remote
Control: Includes visor clip.

Security✚®4-Button Remote Control:

Includes visor clip.

Passport 1-Button Remote Control:

Includes visor clip.

Passport 3-Button Remote Control:

Includes visor clip.

Passport 4-Button Remote Control:

Includes visor clip.

CPT33

CPT43

A24

A57

24VDC Loop Detector

Wiring Harness: For the A24

MA201

UN201

Heater Kit: 150 watt with thermostat

(MA and MAS only)

Heater Kit: 500 watt with thermostat
(MAT and MATS only)

MBAT

12V, 7Amp Battery: 2 required per

operator

MA200

SAMSKIT

K1 Relay Output Option

Includes required relay and limits

Security✚®3-Button Remote Control:

Includes visor clip.

371LM

373LM

374LM

CPT13

MA230VKIT

Includes surge suppressor, wire jumper,
duplex box covers and detailed
instructions.

22

23

LIFTMASTER 2 YEAR LIMITED WARRANTY

10 YEAR CORROSION/PERFORATION LIMITED WARRANTY

ON COVER AND CHASSIS

The Chamberlain Group, Inc. (“Seller”) warrants to the final purchaser of this product, for the structure in which this product is

originally installed, that it is free from defect in materials and/or workmanship for a period of 2 YEARS from the date of purchase [and
that the COVER AND CHASSIS is free from defect in materials and/or workmanship for a period of 10 YEARS from the date of
purchase]. The proper operation of this product is dependent on your compliance with the instructions regarding installation, operation,
maintenance and testing. Failure to comply strictly with those instructions will void this limited warranty in its entirety.

If, during the limited warranty period, this product appears to contain a defect covered by this limited warranty, call 1-800-528-2806,
toll free, before dismantling this product. Then send this product, pre-paid and insured, to our service center for warranty repair. You
will be advised of shipping instructions when you call. Please include a brief description of the problem and a dated proof-of-purchase
receipt with any product returned for warranty repair. Products returned to Seller for warranty repair, which upon receipt by Seller are
confirmed to be defective and covered by this limited warranty, will be repaired or replaced (at Seller’s sole option) at no cost to you
and returned pre-paid. Defective parts will be repaired or replaced with new or factory-rebuilt parts at Seller’s sole option.

ALL IMPLIED WARRANTIES FOR THE PRODUCT, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED IN DURATION TO THE 2 YEAR LIMITED WARRANTY
PERIOD SET FORTH ABOVE [EXCEPT THE IMPLIED WARRANTIES WITH RESPECT TO THE COVER AND CHASSIS, WHICH ARE
LIMITED IN DURATION TO THE 10 YEAR LIMITED WARRANTY PERIOD FOR THE COVER AND CHASSIS, AND NO IMPLIED
WARRANTIES WILL EXIST OR APPLY AFTER SUCH PERIOD. Some States do not allow limitations on how long an implied
warranty lasts, so the above limitation may not apply to you. THIS LIMITED WARRANTY DOES NOT COVER NON-DEFECT DAMAGE,
DAMAGE CAUSED BY IMPROPER INSTALLATION, OPERATION OR CARE (INCLUDING, BUT NOT LIMITED TO ABUSE, MISUSE,
FAILURE TO PROVIDE REASONABLE AND NECESSARY MAINTENANCE, UNAUTHORIZED REPAIRS OR ANY ALTERATIONS TO THIS
PRODUCT), LABOR CHARGES FOR REINSTALLING A REPAIRED OR REPLACED UNIT, OR REPLACEMENT OF BATTERIES.

THIS LIMITED WARRANTY DOES NOT COVER ANY PROBLEMS WITH, OR RELATING TO, THE GATE OR GATE HARDWARE,
INCLUDING BUT NOT LIMITED TO THE GATE ALIGNMENT OR HINGES. THIS LIMITED WARRANTY ALSO DOES NOT COVER ANY
PROBLEMS CAUSED BY INTERFERENCE. ANY SERVICE CALL THAT DETERMINES THE PROBLEM HAS BEEN CAUSED BY ANY OF
THESE ITEMS COULD RESULT IN A FEE TO YOU.

UNDER NO CIRCUMSTANCES SHALL SELLER BE LIABLE FOR CONSEQUENTIAL, INCIDENTAL OR SPECIAL DAMAGES ARISING IN
CONNECTION WITH USE, OR INABILITY TO USE, THIS PRODUCT. IN NO EVENT SHALL SELLER’S LIABILITY FOR BREACH OF
WARRANTY, BREACH OF CONTRACT, NEGLIGENCE OR STRICT LIABILITY EXCEED THE COST OF THE PRODUCT COVERED HEREBY.
NO PERSON IS AUTHORIZED TO ASSUME FOR US ANY OTHER LIABILITY IN CONNECTION WITH THE SALE OF THIS PRODUCT.

Some states do not allow the exclusion or limitation of consequential, incidental or special damages, so the above limitation or
exclusion may not apply to you. This limited warranty gives you specific legal rights, and you may also have other rights which vary
from state to state.

LIMITED WARRANTY

HOW TO ORDER REPAIR PARTS

OUR LARGE SERVICE ORGANIZATION

SPANS AMERICA

INSTALLATION AND SERVICE INFORMATION

IS AS NEAR AS YOUR TELEPHONE. SIMPLY DIAL OUR

TOLL FREE NUMBER:

1-800-528-2806

www.liftmaster.com

WHEN ORDERING REPAIR PARTS, ALWAYS GIVE THE
FOLLOWING INFORMATION:

• PART NUMBER

• PART NAME

• MODEL NUMBER

ADDRESS ORDERS TO:

THE CHAMBERLAIN GROUP, INC.

Technical Support Group

6020 S. Country Club Road

Tucson, Arizona 85706

© 2007, The Chamberlain Group, Inc.

01-60134B All Rights Reserved

REPAIR PARTS AND SERVICE