Obstruction test, Adjustment – LiftMaster CSW24V High-Cycle Commercial DC Swing Gate Operator User Manual

Page 29

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27

FINE TUNE THE FORCE

The 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.

3

Perform the “Obstruction Test” after every force setting adjustment

(see below).

2

1

!

3

OPEN limit

CLOSE limit

!

2

OBSTRUCTION TEST

The operator is equipped with an automatic obstruction sensing feature. If the gate

encounters an obstruction during motion, the operator will automatically reverse

direction of the gate for a short time and then stop the gate. After any adjustments

are made, test the operator:

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.

1

LIMIT AND FORCE ADJUSTMENT + OBSTRUCTION TEST

ADJUSTMENT

ADJUST THE LIMITS

If the limits have already been set the operator will exit the limit setting mode after

resetting each limit. Each limit is set separately by following steps 1-3 of the Initial

Limit and Force Adjustment section, on page 26.

ERASE LIMITS

1

To erase the limits, press and hold the SET OPEN and SET CLOSE buttons

simultaneously (5 seconds) until both the SET OPEN and SET CLOSE LEDs blink

rapidly and the operator beeps.

2

Release the buttons and the SET OPEN and SET CLOSE LEDs will blink slowly

indicating the limits will need to be set.

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