Introduction – Controlled Products Systems Group MADCBB3 User Manual

Page 3

UNIT OVERVIEW

The LiftMaster model MEGA ARM barrier style parking gate
operator is unique in the industry. Setting the MEGA ARM apart
are many features that make it the front runner in its class:

• Built in battery run - inherent 24 Vdc backup power with

regulated 24 Vdc for accessories.

• High torque 24 volt Permanent Magnet DC motor.

• Full service controller with eight inputs and LED indicators for

loops, card reader, radio, etc.

• Reversible arm direction for right or left handed operation.

• Instant Reverse Device (IRD) monitor senses obstructions

during motion.

• Automatic open of gate arm when power is lost if desired (with

15 sec. delay selection).

• Raise gate input memory will memorize multiple vehicles – ideal

for bar code scanners and AVI.

• Ability to STOP arm in close travel if tail-gating is sensed at

close loop.

• Anti-tail gate alarm - fires K1 relay to trigger a warning device

when tail-gating is sensed.

• SAMS with “memory” - allows Mega Arm to open a slide/swing

gate first then raises arm.

• Break away mount design for the 12-15' x 3" tubular aluminum

boom arm.

• Dynamic motor braking to preserve arm positioning.

• All rust proof aluminum construction with white powder coat

baked on enamel.

• Molded Polyethylene UV stabilized cover never needs wax or

paint (excludes towers).

• Direct drive gear reducer eliminates many parts that might

otherwise fail.

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

or relays.

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

• No limit switches to fail - uses magnetic (Hall Effect) sensors to

monitor arm position.

• Maximum Run Timer for motor 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.

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

on electronics and mechanism.

NOTE: If the operator is installed in a region where temperatures
regularly go below 30˚ F then it is recommended that the optional
heater is installed. Refer to the accessory page.

I N T R O D U C T I O N

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.

Mechanical

Electrical

ATTENTION

AVERTISSEMENT

WARNING

CAUTION

WARNING

PRECAUCIÓN

ADVERTENCIA

ATTENTION

AVERTISSEMENT

WARNING

CAUTION

WARNING

PRECAUCIÓN

ADVERTENCIA

IMPORTANT NOTE

• BEFORE attempting to install, operate or maintain the operator,

you must read and fully understand this manual and follow all
safety instructions.

• DO NOT attempt repair or service of your commercial door and

gate operator unless you are an Authorized Service Technician.

TOOLS NEEDED FOR INSTALLATION

During assembly, installation and adjustment of the operator the
tools listed below may be needed.

• Wrench or Socket Set

• Phillips Head Screwdriver

• C Clamps

• Level

• Small Screwdriver

• T25 Torx Head Screwdriver

ATTENTION

AVERTISSEMENT

WARNING

CAUTION

WARNING

PRECAUCIÓN

ADVERTENCIA

This manual is related to the following products:

MATDCBB3