Adjustment; Test The Safety Reverse System - Chamberlain LiftMaster Professional 5580 Instructions

24
Limit Adjustment
Run the opener through a complete travel cycle. Limit adjustments
are not necessary when the door opens and closes completely and
doesn't reverse unintentionally in the fully closed position.
Locate the orange button (1) on the back panel of motor unit. Push
the orange button twice to enter into Force Setting Mode.
NOTE: Repeated operation of the opener during adjustment
procedures may cause motor to overheat and shut off. Allow a 15
minute cooling period after 5 continuous operations of the opener.
Read the following carefully before proceeding to Force Adjustment.
Use a screwdriver to make limit adjustments.
If Door Doesn't Open Completely but Opens at Least 1,5m (5
feet): Increase up travel. Turn the up limit adjustment screw (3)
clockwise. One turn equals 5cm (2") of travel.
If door does not open at least 1,5m (5 feet). Adjust force, see
Force Adjustment: Place the opener into the Force Adjustment
Mode, see Force Adjustment.
If Door Doesn't Close Completely: If door arm is at maximum
length, increase down travel. Turn down limit adjustment screw (2)
counterclockwise. One turn equals 5cm (2") of travel. If the door still
will not close completely, the header bracket is positioned too high.
If Opener Reverses in Fully Closed Position: Decrease down
travel. Turn down limit adjustment screw (2) clockwise. One turn
equals 5cm (2") of travel.
If Door Reverses when Closing and there is no Interference to
Travel Cycle: Test door for binding. Pull manual release handle.
Manually open and close door. If door is binding, call a door
serviceman. If door is not binding or unbalanced, place the opener
into the Force Setting Mode, see Force Settings.
PROCEED TO STEP 25 "FORCE SETTINGS" TO COMPLETE
STEP 24 "LIMIT ADJUSTMENT". Forces must be learned in order
for limit adjustments to operate properly.
25
Force Settings
The force, as measured on the closing edge of the door, should not
exceed 400N (40kg). If the closing force is measured to more than
400N, the Protector System must be installed See step 27.
The force setting button is located on the back panel of the motor
unit. The force setting regulates the amount of power required to
open and close the door. If the forces are set too light, door travel
may be interrupted by nuisance reversals in the down direction and
stops in the up direction.
Locate the orange button (1) on the back panel of motor unit. Push
the orange button twice to enter into Force Setting Mode. The LED
(Indicator Light) will flash. Push the wall control or the programmed
remote control that was shipped with your opener. The door will travel
to either the OPEN or CLOSE position. Push the button again, the
door will travel to the opposite position. Push the button again if the
LED is stilling blinking.
The door must travel through a complete cycle UP and DOWN in
order for the force to be set properly. If the unit stops before it
reaches the Open or Close Limit repeat the process. The LED
(indicator light) will stop flashing when the force has been learned.
To restore factory force settings, first enter force learn mode by
pressing the orange button twice. With the door open, press and hold
the wall control until door is fully closed.
26

Test the Safety Reverse System

The safety reverse system test is important. Garage door must
reverse on contact with a 40mm obstacle laid flat on the floor.
Failure to properly adjust opener may result in serious personal
injury from a closing garage door. Repeat test once a month and
adjust as needed.
Procedure: Place a 40mm obstacle (1) laid flat on the floor under the
garage door. Operate the door in the down direction. The door must
reverse on the obstruction. If the door stops on the obstruction, it is
not traveling far enough in the down direction. Increase the down
limit by turning down limit adjustment screw counterclockwise 1/4
turn. Repeat test.
When the door reverses on the 40mm obstacle, remove the
obstruction and run the opener through a complete travel cycle. Door
must not reverse in closed position. If it does, adjust Limits and
Force and repeat safety reverse test.
Place 20kg at the center of the door and ensure that the door will not
move up more than 500mm.
6