Chamberlain MSLDCBB 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
CAUTION WARNING
WARNING
WARNING
CAUTION 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.
Flip switch up for
normal operation.
Flip switch down to
disengage power to
motor and for manual
operation.
Normal Operation
Position
Manual Release
Position

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 or
B2
A, 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
Type
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
Gate Stops Here
Gate Stops Here
Reversing Photo Beam (NOTE-2)
Reversing Photo Beam (NOTE-2,3)
Safety Photo Beam (NOTE-2)
Reversing Photo Beam (NOTE-2,3) Stop Photo Beam (NOTE-1)
Stop Photo Beam (NOTE-1)
Stop Photo Beam (NOTE-1)
= Contact Edges
Stationary/Fixed/Dead Panel
Edge Sensor (NOTE-2,3)
Edge Sensor (NOTE-2,3)
Roadway Safety Zone Backframe Safety Zone
Stop Edge (NOTE-2)
Stop Edge (NOTE-2)
Stop Edge (NOTE-2)
Stop Edge (NOTE-2)
Stop Edge (NOTE-2)
Stop Edge (NOTE-2)
Gate Operator
Gate Operator
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

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 2years 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
Operator
Frame
Chain
8 1/4"
9 1/8"
5 1/4" Min.
7" Max.
Concrete
Pad
Conduit Area
10 3/4"
7 1/4"
Allow enough space
between pad and
wheel bolts on gate.

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
CAUTION 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.
Open Close Stop
J5 Commons #9-12
J5 Input #1
J5 Input #6
JP2 Connector
(Note: Siren Will
Sound When Stop
Button Is Depressed)
11

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 VDC Battery
7-10 amp
12 VDC Battery
7-10 amp
Red Lead
Black Lead
Jumper
Failure to install batteries correctly will cause
damage and will not be covered by warranty.
FIGURE 1
12
Open
Close Common
Master-J5
FIGURE 2
123 45 678 9101112
Second-J5
12 34 567 89101112
FIGURE 3
RX GND TX
RX GND TX
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.
Master-J3
Second-J3
12 34
12 34

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
12345678
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 L O AC POWER
PWR
CNCNO
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
OPEN1
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
OPEN2
D16
R3
Ø
OPEN3
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
12345678 S2 12345678
D1
Ø
R14
R18
R21
R24
R36 R42 R47 R53
R35 R41 R46 R5
Ø
R61
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 ONbefore 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
HIGH
SECURITY MODE
Security Mode
Terminals Jumper
NORMAL
SECURITY MODE
Security Mode
Terminals Jumper
FIGURE 2
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.
24V 12V
HIGH
NORM
C
P2
M
OPENRECEIVER
FIGURE 3
OPENING RECEIVER
Connect
Antenna
Output Duration
Terminals
Security Mode
Power Supply
Jumper
(Not
Provided)
Learn Button
Indicator Light
HBEAT BAT 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
OPEN1
D15
C7
X2
C19
C2
C3
C4
U4
R12
OPEN2
D16
R3
Ø
OPEN3
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
78 S2 12345678
D1
Ø
R14
R18
R21
R24
R36 R42 R47 R53
R35 R41 R46 R5
Ø
R61
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
CNCNO
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
OPEN1
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
OPEN2
D16
R3
Ø
OPEN3
D17
AUX 4
D18
SAFETY5
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
12345678 S2 12345678
D1
Ø
R14
R18
R21
R24
R36 R42 R47 R53
R35 R41 R46 R5
Ø
R61
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
CAUTION
WARNING
WARNINGWARNING
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT

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
CAUTION 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
Card Reader
Tele-entry
Radio Control
Safety
Loop
Safety
Loop
Mega Slide UL
Safety
Loop
Mega Slide UL
Open
Loop
Card Reader
Tele-entry
Radio Control
Safety
Loop
Mega Slide UL
Open
Loop
FIGURE 1
FIGURE 2
FIGURE 3
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.

19
24VAC XFMRACC+
HBEAT BAT LO AC POWER
PWR
CNCNO
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
OPEN1
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
OPEN2
D16
R3
Ø
OPEN3
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
12345678 S2 1 2345678
D1
Ø
R14
R18
R21
R24
R36 R42 R47 R53
R35 R41 R46 R5
Ø
R61
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
OPENLIMIT SENSOR
OPENDRIVERS ON
MOTOR BRAKE ON
CLOSE DRIVERS ON
CLOSE LIMIT SENSOR
OBSTRUCTIONSENSE
(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)
OPENGATE 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
1
13
8
310
5
2
11
6
7
14
REAR VIEW
9
INSIDE VIEW 16
18
17
15
4
19
20
12
DCS
1/2 HP
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