Lift-master LM202 User Manual

Please follow the steps below referring to Figure 1 to ensure
proper operation of your LM202 Vehicle Probe with your
LiftMaster LA400 Gate Operator.

NOTE:

Do not install the probe close to any electrical wires. Do
not run the lead in cable in the same conduit as other electrical
wires.

INSTALLATION

1. Select a location parallel to the driveway to install the probe.

A. The probe may be buried up to 10" deep, provided there is

no rebar located below it.

B. The probe may also be placed above ground, provided it

remains undisturbed and free of vibrations.

2. Run the attached wire to the LA400 Control Box, making sure

it is kept out of the way of gardening equipment.

3. See the reverse side of this sheet for proper wiring

installation.

LM202 Vehicle Sensing Probe

Installation and Wiring

Instructions

Figure 1

Telephone
Entry System

STREET

25' Min.

8-10"

LM202
Vehicle Probe

Typical Read Range
(approx. 15' Radius)

©2005, The Chamberlain Group, Inc.

01-32706B All Rights Reserved

WIRING INSTRUCTIONS

1. Connect the BROWN (-) wire from the LM202 to the OPEN

terminal on the control board (Figure 2).

2. Connect the GREEN (N/O) wire from the LM202 to the COM

terminal on the control board (Figure 2).

NOTE:

The WHITE

wire is not used.

3. Connect the RED and BLACK power wires from the LM202 to

the J13 Accessory Power terminal on the control board
(Figure 3).

NOTE:

Polarity is not important.

4. Upon device power up, please allow at least 60 seconds for

the unit to properly initialize.

BLACK

COM

COM

CONTROL

INPUTS

OPEN

SINGLE BUTTON

RESET

STOP

POWER

OPEN

COMMON

Connection to LA400 Control Board

GREEN

BROWN

To LM202
Vehicle Probe

ACCESSORY

POWER

24V

Z22

R91

CLOSE
EDGE

R94

R92

R93

L1

R1

R2

Z1

K5

Ø

14GPØ89ØE

Ø

14LGØ89ØE

Ø

14SKØ89ØE

K6

K2

F3

10A 32V

D1

Ø

OPEN EDGE/

PHOTO

OPEN
PHOTO

CLOSE
PHOTO

J18

R227

R2

Ø

7

Z2

Ø

R223

1

P

Z9

Z8

F2

F6

D4D2R9

C64

JMPR1

R224

U4

P2

1J

J19

SINGLE

BUTTON

CONTROL
INPUTS

FORCE

BIPART
DELAY

TIMER TO
CLOSE

MIN MAX OFF MAX OFF MAX

OPEN

SINGLE BUTTON

RESET

STOP

SHADOW

S1

INTERRUPT

CHGR
OVLD

COM

COM

COM

FUSE
OPEN

LOOP

INPUTS

POWER

BATT 1BATT 2

F1 2

0

A 32V

R35

D9

Z3

Z4

U3

D1

D27

F5

C11

C13

C12

D15

C2R4

R1

Ø

1

R1

ØØ

R9

Ø

Q9

K1

R196

Q22

D8

K3

K4

D21

D22

C4

ACCESSORY

OVLD

6D

JMPR2

MOV1

MOV2

DB1

U2

Z12

24 VAC/
SOLAR
INPUT

GATE 2

ACCESSORY

POWER

MAGLOCK

ALARM

GATE 1

C

C

NC

NO

NO

GRN

WHT

YEL

BLU

RED

BRN

GRN

WHT

YEL

BLU

RED

BRN

F4

10A 32V

F7

24V

24V

COM
OVLD

OVLD

SWITCHED

ACCESSORY

POWER

TIMER

RUNNING

GATE 2

SET
OPEN
LIMIT

SET
CLOSE
LIMIT

LEARN

LIMITS

DIAGNOSTIC

GATE 1

J4

SAVE
MAGLOCK
MODE
EDGE
PHOTO

OFF
OFF

SINGLE

NO
NO

ON
ON
DUAL
NC
NC

LEARN

XMITTER

S8

5

4

3

2

1

O
N

2

1

RED

Figure 2

To prevent possible SERIOUS INJURY or DEATH from
electrocution, disconnect power to operator BEFORE

proceeding.

WARNING

WARNING

Figure 3

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