LiftMaster LA412UL Installation Manual - Page 26

Step 12 Finish Installation, ADJUSTMENT, Limit and Force Adjustment

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INSTALLATION Step 11 Finish Installation 1. Turn the release lever clockwise 180° back to the engaged position. This engages the motor. The illustration shows the release lever in the engaged position. 2. Turn the key clockwise 180°. This locks the release lever. The operator is now engaged. 3. Fasten warning signs to the gate with cable ties. Warning signs MUST be installed on both sides of the gate and in plain view. ADJUSTMENT Limit and Force Adjustment To reduce the risk of SEVERE INJURY or DEATH: l Without a properly installed safety reversal system, persons (particularly small children) could be SERIOUSLY INJURED or KILLED by a moving gate. l Too much force on gate will interfere with proper operation of safety reversal system. l NEVER increase force beyond minimum amount required to move gate. l NEVER use force adjustments to compensate for a binding or sticking gate. l If one control (force or travel limits) is adjusted, the other control may also need adjustment. l After ANY adjustments are made, the safety reversal system MUST be tested. Gate MUST reverse on contact with an object. Introduction Your operator is designed with electronic controls to make travel limit and force adjustments easy. The adjustments allow you to program where the gate will stop in the open and close position. The electronic controls sense the amount of force required to open and close the gate. The force is adjusted automatically when you program the limits but should be fine tuned using the REVERSAL FORCE dial on the control board (refer to Fine Tune the Force section) to compensate for environmental changes. The limit setup LEDs (located next to the SET OPEN and SET CLOSE buttons) indicate the status of the limits, refer to the table to the right. The limits can be set using the control board (below) or a remote control (refer to Limit Setup with a Remote Control in the Appendix). Setting the limits with a remote control requires a 3-button remote control programmed to OPEN, CLOSE, and STOP. NOTE: The TEST buttons on the control board will not work until the limits have been set and the required entrapment protection devices are installed. SET OPEN LED OFF BLINKING BLINKING ON ON LIMIT SETUP LEDS SET CLOSE OPERATOR MODE LED OFF BLINKING ON BLINKING ON NORMAL MODE LIMIT SETTING MODE LIMIT SETTING MODE LIMIT SETTING MODE LIMIT SETTING MODE EXPLANATION Limits are set Limits are not set Open limit is not set Close limit is not set Limits are set 26

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26
Step 11 Finish Installation
1.
Turn the release lever clockwise 180° back to the engaged position.
This engages the motor. The illustration shows the release lever in
the engaged position.
2.
Turn the key clockwise 180°. This locks the release lever. The
operator is now engaged.
3.
Fasten warning signs to the gate with cable ties. Warning signs
MUST be installed on both sides of the gate and in plain view.
ADJUSTMENT
Limit and Force Adjustment
To reduce the risk of SEVERE INJURY or DEATH:
l
Without a properly installed safety reversal system, persons
(particularly small children) could be SERIOUSLY INJURED or
KILLED by a moving gate.
l
Too much force on gate will interfere with proper operation of safety
reversal system.
l
NEVER increase force beyond minimum amount required to move
gate.
l
NEVER use force adjustments to compensate for a binding or sticking
gate.
l
If one control (force or travel limits) is adjusted, the other control
may also need adjustment.
l
After ANY adjustments are made, the safety reversal system MUST be
tested. Gate MUST reverse on contact with an object.
Introduction
Your operator is designed with electronic controls to make travel limit
and force adjustments easy. The adjustments allow you to program
where the gate will stop in the open and close position. The electronic
controls sense the amount of force required to open and close the gate.
The force is adjusted automatically when you program the limits but
should be fine tuned using the REVERSAL FORCE dial on the control
board (refer to
Fine Tune the Force
section) to compensate for
environmental changes. The limit setup LEDs (located next to the SET
OPEN and SET CLOSE buttons) indicate the status of the limits, refer to
the table to the right.
The limits can be set using the control board (below) or a remote control
(refer to
Limit Setup with a Remote Control
in the Appendix). Setting the
limits with a remote control requires a 3-button remote control
programmed to OPEN, CLOSE, and STOP.
NOTE:
The TEST buttons on the control board will not work until the
limits have been set and the required entrapment protection devices are
installed.
LIMIT SETUP LEDS
SET
OPEN
LED
SET CLOSE
LED
OPERATOR MODE
EXPLANATION
OFF
OFF
NORMAL MODE
Limits are set
BLINKING
BLINKING
LIMIT SETTING
MODE
Limits are not set
BLINKING
ON
LIMIT SETTING
MODE
Open limit is not set
ON
BLINKING
LIMIT SETTING
MODE
Close limit is not set
ON
ON
LIMIT SETTING
MODE
Limits are set
INSTALLATION