LiftMaster LA400UL LA400UL Wiring Diagram

Press and hold

STOP...

...then press and

hold CLOSE...

...then press and hold OPEN

until "Er" shows.

CODE SEQUENCE NUMBER

The first number shown is the most

recent code (example: “01”). The

display will show the sequence of

codes that occurred starting with “01”

and going up to code “20”.

CODE NUMBER

The second number shown after the code

sequence number is the code itself

(31-99, example” “31”).

A SECOND LATER

....

The operator will show the code sequence number followed by the code number:

Diagnostic Codes

TO VIEW THE CODES:

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All Rights Reserved

01-39240-10

LiftMaster System

Installed System

Informational

External Entrapment Protection

Inherent Entrapment Protection

WIRING DIAGRAM

Model LA400UL

CODE

MEANING

SOLUTION

31

Main control board has experienced an internal

failure.

Disconnect all power, wait 15 seconds, then

reconnect power (reboot). If issue continues,

replace main control board.

32

Linear Drive Disengaged (Arm 1)

Disengage then re-engage arm. Check wiring and

connections.

33

Linear Drive Disengaged (Arm 2)

35

Max-Run-Time Exceeded Error

Check for an obstruction, then reprogram the

limits.

36

Product ID Error

Was the control board just replaced? If so, erase

limits, enter limit setup mode and set limits. If

not, disconnect all power, wait 15 seconds, then

reconnect power before changing product ID

harness.

37

Product ID Failure

Unplug product ID harness then plug back in.

Disconnect all power, wait 15 seconds, then

reconnect power before replacing product ID

harness.

38

Hard Stop Limit (Arm 1)

Limit may be set too tightly against a

non-resilient hard stop (re-adjust limit). Operator

may be at end of travel (re-adjust mounting).

39

Hard Stop Limit (Arm 2)

40

Battery overvoltage

Too much voltage on the battery. Check harness.

Make sure there is NOT a 24V battery on a 12V

system.

41

Battery overcurrent

Possible short of the battery charge harness.

Check harness. Make sure you do NOT have a

12V battery on a 24V system.

42

No battery at boot up

Check battery connections and installation.

Replace batteries if depleted to less than 20V on

a 24V system or less than 10V on a 12V system.

Make sure there is NOT a single 12V battery on a

24V system.

43

Failure or missing EXIT loop

Failure or missing loop (SHORT or OPEN -

LiftMaster Plug-in Loop Detector only) Check

loop wiring throughout connection. May be a

short in the loop, or an open connection in the

loop.

44

Failure or missing SHADOW loop

45

Failure or missing INTERRUPT loop

46

Wireless edge battery low

Replace batteries in wireless edge.

51

Pass-point not detected (Arm 1)

Check yellow pass-point wiring. If limits are not

accurate, reprogram.

52

Pass-point not detected (Arm 2)

53

Brownout occurred

AC/DC board supply dipped below allowable

level. Review power supply and wiring. If

rebooting, ensure enough time for discharge of

power to force a fresh boot.

54

Wireless Second Operator Communication Error

Check the second operator for power. If OFF,

restore power and try to run the system. If

powered, deactivate the wireless feature and then

reprogram the second operator.

60

Minimum number of monitored entrapment

protection devices not installed.

Review monitored entrapment protection device

connections. This swing gate operator will

operate only after installation of a minimum of

one external safety device in either the open or

close direction.

61

CLOSE EYE/INTERRUPT held more than 3

minutes

Check wired input on main board; check for

alignment or obstruction.

62

CLOSE EDGE held more than 3 minutes

63

OPEN EYE/EDGE held more than 3 minutes

64

CLOSE EYE/INTERRUPT held more than 3

minutes

Check wired input on expansion board; check for

alignment or obstruction.

65

CLOSE EYE/EDGE held more than 3 minutes

66

OPEN EYE/EDGE held more than 3 minutes

67

Wireless edge triggered more than 3 minutes

Check wired input for wiring issue or

obstruction.

68

Wireless edge loss of monitoring

Check wireless edge inputs.

69

Wireless edge triggered

IF an obstruction occurred, no action required. If

an obstruction did NOT occur, check inputs and

wiring.

70

CLOSE EYE/INTERRUPT triggered, causing

reversal, preventing close, or resetting TTC


an obstruction did NOT occur, check alignment,

inputs, and wiring on main board.

71

CLOSE EDGE triggered, causing reversal,

preventing close, or canceling TTC

72

OPEN EYE/EDGE triggered, causing reversal or

preventing opening

73

CLOSE EYE/INTERRUPT triggered, causing

reversal, preventing close, or resetting TTC


an obstruction did NOT occur, check alignment,

inputs, and wiring on expansion board.

74

CLOSE EYE/EDGE triggered, causing reversal

and preventing close or canceling TTC

75

OPEN EYE/EDGE triggered, causing reversal or

preventing opening

80

Close input (EYE/EDGE) communication fault

from other operator

Check inputs and communication method

between operators, either wired bus or radio.

Ensure operator is powered. May have to erase

the wireless communication and reprogram the

two operators.

81

Open input (EYE/EDGE) communication fault

from other operator

82

Close input (EYE/EDGE) communication fault

(expansion board)

Check the connections between the main board

and the expansion board.

83

Open input (EYE/EDGE) communication fault

(expansion board)

84

Non-monitored device detected on the wireless

safety system

Non-monitored contact closure devices are not

supported. Make sure connected devices are

monitored. Check edges for proper orientation

and resistive end cap connection.

91

Force Reversal (Operator 1)

Check for obstruction. If no obstruction, check

that the mechanical assembly is engaged and

free to move. See section on Limit and Force

Adjustment, and Obstruction Test in the manual.

92

Force Reversal (Operator 2)

93

RPM / STALL Reversal (Operator 1)

Check for obstruction. If no obstruction, check

the operator wiring and that the mechanical

assembly is engaged and free to move. Replace

APE assembly.

94

RPM / STALL Reversal (Operator 2)

99

Normal Operation

No action required

To reduce the risk of INJURY or DEATH:

•

DISCONNECT power and battery BEFORE installing or servicing operator.

•

Replace ONLY with fuse of same type and rating.

•

To be compliant with UL325 and industry safety guidelines, qualified monitored

external entrapment protection devices such as photoelectric sensors or edge

sensors are required to be installed with this operator at each entrapment zone.

Use ONLY LiftMaster approved entrapment protection devices (refer to the

accessory page of manual).

•

See manual prior to servicing regarding maintenance and required safety testing.

CODE COLOR KEY:

DIAGNOSTICS

EYE

ONLY

EYE/

EDGE

EYE/

EDGE

COM

1

2

3

SBC

OPN

CLS

STP

COM

C

4321

Control Station

Photoelectric Sensors

for close cycle

Edge Sensor

for close cycle

OR

Edge Sensor

for open cycle


for open cycle

ENTRAPMENT

PROTECTION

LOOPS

Fire Department

CONTROLS

LOCKS

ACCESSORY

POWER

ENTRAPMENT

PROTECTION

CONTROLS

OR

24 Vdc

switched

OR

OR

Expansion Board

(Optional Accessory)

Maglock

(Optional)

(not provided)

Solenoid Lock

(Optional)

(not provided)

24 Vdc

always on


for open or close cycle

Photoelectric Sensor


Edge Sensor

for open or close

cycle

Edge Sensor

for open or close

cycle

Photoelectric Sensor


Control Board

COAXIAL CABLE

ANTENNA

(see below)

PLUG-IN LOOP DETECTOR

Model LOOPDETLM

(see below)

AUXILIARY RELAYS

LOOPS

Shadow Loop

Exit Loop

Interrupt Loop

Normally Open

Common

Normally Closed

Normally Open

Common

Normally Closed

SWITCH SETTINGS

1

2

3

RELAY 1

RELAY 2

OFF

Relay always off

Relay always off

OFF

OFF

OFF

OFF

ON

Energizes at open

limit

Energizes at open limit

OFF

OFF

ON

Energizes when not

at close limit

Energizes when not at

close limit

OFF

ON

ON

Energizes when

motor is on

Energizes when motor

is on

ON

OFF

OFF

Energizes 3 seconds

prior and during gate

motion

Energizes 3 seconds prior

and during gate motion

ON

OFF

ON

Energizes with AC or

solar power

Energizes with battery

power

ON

ON

OFF

Energizes when gate

is tampered with

Energizes when gate is

tampered with

ON

ON

ON

LEDs will blink

cycle count

Not used

RED

/

GREEN

LIGHT FUNCTIONALITY

1

2

3

Red light

wired to AUX RELAY 1.

Green light

wired to AUX RELAY 2.

AUX RELAY 1 SWITCHES

OFF

Red light OFF*

OFF

OFF

CLOSED

GATE STATE

AUX RELAY 2 SWITCHES

Green light OFF

1

2

3

ON

ON

ON

OPENING

OPEN

CLOSING

Defined Mid Stop

Undefined Mid Stop

Timer more than

5 seconds

Timer less than

5 seconds

* For red light ON when gate is closed, set switch 1 on AUX RELAY 1 to ON

Red light ON/FLASH

Red light OFF

Red light ON/FLASH

n/a

Red light ON

Red light OFF

Red light ON/FLASH

Green light OFF

Green light ON

Green light OFF

Green light OFF

n/a

Green light OFF

Green light ON

Solar Panels (Optional)

20W minimum - 60W maximum, wired in parallel

10W 12V

10W 12V

Black

Red

ALARM

CONTROL BOARD

Battery

12V 7AH

Battery

12V 7AH

Yellow

PRODUCT

ID

White

White

RESET BUTTON

PLUG-IN

TRANSFORMER

CONTROL BOARD

Input Power Connection

HOT

NEUTRAL

GROUND

J15 Plug

Black

Red

Black

Red

Black

Red

Black

Red

Optional 33AH Battery Configuration

For 33AH battery configuration please use Universal Solar Harness

Kit K94-37236.

The Large Solar Control Box (XLSOLARCONTUL) can be used with

either 7AH or 33AH batteries.

Earth Ground Rod

Wireless Edge Kit

Model LMWEKITU

Universal Solar Harness Kit (K94-37236)

For 7AH or 33AH batteries

Shadow Loop

Exit Loop

Interrupt Loop

Access Control

Device

Black

Green

White

Attach to outlet metal

chassis with a single screw

Diode

Control Stations

Jumper

N.C.

(Back of the Output Housing)

Outlet

Outlet

PRIMARY

OPERATOR

SECONDARY

OPERATOR

TO SCROLL THROUGH THE SAVED CODES:

Press the OPEN button to cycle to the most recent code ("01"). Press the CLOSE button

to cycle to the oldest code (up to “20”).

LiftMaster LA400UL LA400UL Wiring Diagram

LiftMaster LA400UL Manual

LiftMaster LA400UL manual content summary: