Wiring And Adjustments - LiftMaster LA400 Serie Guia De Inicio Rapido

Install Monitored Entrapment Protection Device
This operator contains an inherent (internal) entrapment protection
system and REQUIRES the addition of a LiftMaster external
monitored entrapment protection system (non-contact photoelectric
sensor or contact edge sensor) for EACH entrapment zone prior to
gate movement. System includes three monitored entrapment
protection inputs to cover all entrapment zones (and a total of six
inputs with the optional expansion board). Refer to the manual for
complete information.
Reflector
If the distance between the open gate and the wall is less
than 16" (40.6 cm) entrapment protection for this area is
required. Entrapment protection is required for the area
between the gate and the curb.
EARTH GROUND ROD
Incoming Power
Battery
12V 7AH
Battery
12V 7AH

WIRING AND ADJUSTMENTS

Connect Power Wiring and Earth Ground Rod
Turn off the AC power from the main power source circuit
breaker. Connect the earth ground rod, incoming power, and
batteries (see images below). Refer to your manual for
complete wiring information.
Photoelectric Sensor
CONTROL BOARD
PROGRAM REMOTE CONTROL
1. Press and release the LEARN button on
J15 Plug
the control board (operator will beep and
green XMITTER LED will light).
2. Press the remote control button.
The operator will time out of programming
mode after 30 seconds.
Red
10W 12V
Red Black
Black
Black
Red
SOLAR PANELS (OPTIONAL)
20W minimum - 60W maximum, wired in series
(requires K94-37236 battery harness)
Set the Limits and Force
INITIAL LIMITS AND FORCE ADJUSTMENT
The gate MUST be attached to
the operator before setting the
limits and force. If a mistake is
made while programming the
limits press the reset button to
start over.
1. Set the GATE switch to the 1
position.
2. Press and release the SET
OPEN and SET CLOSE buttons
simultaneously to enter limit
setting mode.
3. Press and hold the MOVE
GATE buttons to move the
gate to the open or close limit.
4. Press and release the SET CLOSE or SET OPEN button depending
on which limit is being set.
5. Press and hold the MOVE GATE button to move the gate to the
other limit.
6. Press and release the SET CLOSE or SET OPEN button depending
on which limit is being set. The operator will exit limit setting
mode.
7. Cycle the gate open and close using the TEST BUTTONS. This
automatically sets the force.
8. For dual gates set the Gate switch to the 2 position and repeat
steps 2-7.
When limits are set properly the operator will automatically exit limit
setting mode.
FINE TUNE THE FORCE
The REVERSAL FORCE DIAL on
the control board is used for fine
tuning the force in cases where
wind or environmental changes
may affect the gate travel. Based
on the length and weight of the
gate it may be necessary to make
additional force adjustments. The
force setting should be high
enough that the gate will not
reverse by itself nor cause
nuisance interruptions, but low
enough to prevent serious injury
to a person. The force setting is the same for both the open and
close gate directions.
1. Open and close the gate with the test buttons.
2. If the gate stops or reverses before reaching the fully open or
closed position, increase the force by turning the force control
slightly clockwise.
10W 12V
3. Perform the "Obstruction Test" after every force setting
adjustment.
Perform the Obstruction Test
1. Open and close the gate with the test buttons, ensuring that the
gate is stopping at the proper open and close limit positions.
2. Place a solid object between the open gate and a rigid structure.
Ensure that the gate, the solid object, and the rigid structure can
withstand the forces generated during this obstruction test.
3. Run the gate in the close direction. The gate should stop and
reverse upon contact with the solid object. If the gate does not
reverse off the solid object, reduce the force setting by turning
the force control slightly
counter-clockwise. The
gate should have enough
force to reach both the
open and close limits,
but MUST reverse after
contact with a solid
object.
4. Repeat the test for the
open direction.
Installation Checklist
Check the following before leaving the site:
Are all the wiring and connections tightly connected?
Is the AC power on? If the operator is left running on battery only, it
will drain the battery and will result in a service call.
Check the batteries and battery connections. Make sure there are two
12V batteries. Replace batteries if depleted to less than 20V.
Make sure the antenna is in place when using wireless dual gates or
on-board transmitters. Operator will be intermittent at times without it.
Remove the protective anti-scratch film from the photoelectric sensors.
Leaving the film on can result in poor sensitivity as the film
decays/yellows/peels.
Confirm whether the site should be fail safe or secure and set the
operator accordingly.
Confirm operation of the following (if applicable):
Entrapment protection devices
Loops
TES relay
SOS/emergency transponders
Check operation of ALL legacy receivers using the MAX transmitter
Timer-to-Close setting
Quick close setting
Anti-tailgate setting