LiftMaster LA412 LA412 Manual - Page 31

ADJUSTMENT » LIMITS LIMITS NOTES: • The gate with the longer travel span (opening) must be set as the primary gate (GATE 1). • If one gate is overlapping the other, the gate that is overlapping must be connected to GATE 1 so it will start moving before the other gate; GATE 2 may need to be closed first if there is overlap or a gate lock is being used. • The programming can be exited at any time by pressing the RESET button. Programming times-out automatically after 60 seconds of inactivity. DUAL GATE (LEFT-SIDE PRIMARY OPERATOR) 1 Close the gate. 2 Engage the operator by turning the release lever clockwise 180°, then turning the key clockwise 180°. PROGRAM OPEN 3 Press the LEARN LIMITS button (SET OPEN LIMIT LED will blink). LEARN LIMITS button SET OPEN LIMIT R2 K2 U4 D4 D2 RESET BUTTON 4 Press the GATE 1 right button to open the left operator. DIAGNOSTIC GATE 1 SET CLOSE 5 Press the GATE 2 right button to move the right operator into the OPEN position. SET CLOSE LIMIT LE LIMIT 6 Press the LEARN LIMITS button. Control board SET GATE 2 will beep. OPEN LIMIT SET CLOSE LIMIT FORCE PROGRAM CLOSE 7 When the SET CLOSE LIMITS LED blinks, press the GATE 2 left button to close the right operator. SET CLOSE LIMIT LE LIMITS GATE 2 FORCE 8 Press the GATE 1 left button to close the left operator. DIAGNOSTIC GATE 1 SET CLOSE 9 Press the LEARN LIMITS button. SET OPEN LIMIT SET CLOSE LIMIT The control board beeps and the SET OPEN LIMIT and SET CLOSE LIMIT LEDs stop blinking, programming is now complete. (If the SET OPEN LIMIT LED continues to blink, repeat programming. If the problem continues, see Troubleshooting section.) Test the limits by pressing the SBC to open and close the gate. 30