LiftMaster LGJ Light-Duty Gear-Reduced Jackshaft Operator for Rolling Grilles and Shutters User Manual

Owner's manual, Lgj & mgj, Models

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OWNER'S MANUAL

MODELS:

LGJ & MGJ

INDUSTRIAL DUTY DOOR OPERATOR

NOT FOR RESIDENTIAL USE

LISTED DOOR OPERATOR

41B6

Serial #

(located on electrical box cover)

Installation Date

Wiring Type

2 YEAR WARRANTY

c 2003, The Chamberlain Group, Inc.

All rights Reserved

MGJ CONTROL CONNECTION DIAGRAM

01-11452H

OPEN TIMER TO CLOSE

3 BUTTON STATION or 3 POSITION KEYSWITCH w/ SPRING RETURN TO CENTER AND STOP BUTTON

2 OR MORE

KEY LOCKOUT

R1

R2

R3

1

2

3

4

Stop

Close

Open

Stop

Close

Open

1

2

3

4

Stop

Close

Open

2 BUTTON STATION or 3 POSITION KEYSWITCH w/ SPRING RETURN TO CENTER

STANDARD

1

2

4

Close

Open

ALL CONTROL WIRING TYPES

2 OR MORE

1

2

4

Close

Open

Close

Open

OPEN / CLOSE

3

7

RADIO CONTROL

1 BUTTON STATION or

ANY AUXILIARY DEVICE

RESIDENTIAL RADIO CONTROLS

SENSING DEVICE TO REVERSE OR STOP

EXTERNAL INTERLOCK

3

10

4

5

4

5

Remove Jumper

When Interlock is Used

ONE

2 OR MORE

STANDARD

1

2

3

4

Stop

Close

Open

IMPORTANT NOTES:

1) The 3-Button Control Station provided must be connected for operation.
2) If a STOP button is not used, a jumper must be placed between termianls 3 and 4.
3) Auxiliary control equipment may be any normally open two wire device such as
pullswitch, single button, loop detector, card key or such device.

Keyswitch

Sensing Device

ALL CONTROL WIRING TYPES

B2 or T1

WIRING TYPES ONLY

ALL CONTROL WIRING TYPES

T1 WIRING - RADIO TO OPEN ONLY

*

*

EXTERNAL

TERMINAL BLOCK

ALL CONTROL WIRING TYPES

ALL CONTROL WIRING TYPES

ALL CONTROL WIRING TYPES

TIMER TO CLOSE w/ WARNING LIGHT

ALL CONTROL WIRING TYPES

T1 CONTROL WIRING ONLY

11

12

Timer Defeat

Switch

13

14

Power Supply for

Warning Light

Auxiliary Terminal Block

Warning Light will activate 15 sec. before door closes.

ALL CONTROL WIRING TYPES

ATTENTION ELECTRICIAN:

USE 16 GAUGE OR HEAVIER WIRE

FOR ALL CONTROL CIRCUIT WIRING.

SEE NOTE #2

SEE NOTE #2

SEE NOTES

#2 AND #3

(Refer to page 15 for model LGJ control connections)

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