Chamberlain LIFTMASTER PROFESSIONAL MSLDCBB Installation And Service Manual Download Page 9

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120 VAC POWER

(Wiring and hookup only by a qualified electrician/installer!)

NOTES:

Maximum ambient temperature for installation, 104 F.

For automotive use only, no motorcycles, bicycles or pedestrians.

Be sure your main power (120 VAC) is OFF before attempting
hookup. The 120 volts AC supply should be terminated to the
wires below the duplex receptacle. Connect the 120 VAC to
BLACK wire, Neutral to the WHITE wire and Ground the GREEN
wire.

Warning: Do not connect any 120 VAC wires directly to the

terminal strips on the electronic control board.

Only U.L.

approved 14 AWG (or larger) 600 volt insulated wire should be
used. A separate UL approved 10 amp circuit breaker should be
used for each MEGA SLIDE UL operator.

Batteries must be

installed after 120 VAC Power is turned on.

See BATTERY at

page 10 and 120 VAC wiring diagram.

(UL-325, main power must be off before attempting to connect
any accessories devices).

INPUT COMMANDS

(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.

Version 6.34 or higher only, 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.

W I R I N G A N D H O O K U P

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.