Programming; Program Limits - Chamberlain LiftMaster LA412 Owner's Manual

PROGRAMMING

Program Limits

The limits are internal settings that indicate when the gates are in the fully open position and the fully closed position. For
proper functionality, the limits must be programmed during the installation process. The programming uses a combination
of buttons on the control board.
The specifi c buttons used for programming depends on which side of the gate the control box is mounted and how many
operators the installation includes. Refer to pages 11 and 13 to determine if the gate is Left- or Right-handed.
If a mistake is made during programming press the RESET button on the outside of the control box to start over.
SINGLE ARM LEFT-HAND SIDE
NOTE: The programming can be exited at any time by pressing the RESET button. The programming times-out automatically after 60
seconds of inactivity.
PROGRAM OPEN
With the gate in the CLOSED position, press the LEARN
LIMITS button (SET OPEN LIMIT LED will blink).
LEARN LIMITS button
R223 OPEN EDGE/ OPEN EDGE/
K6 EDGE CLOSE
ALARM
NO R2Ø7
C Z2Ø R227
K5
GATE 1 MAGLOCK PHOTO
NO L1
BRN C R224
GRN NC U4 R92 Z22
R2 LEARN ON MAGLOCK OFF Z9
WHT Z1 R1 XMITTER OPEN
YEL 10A 32V PHOTO
BLU F3 R91
RED R94
D1Ø K2 Z8
U4 CLOSE
DIAGNOSTIC PHOTO
R93
GATE 1
SET SET OVLD COM
Z12 K1 Q9 OPEN CLOSE LIMITS LEARN CONTROL INPUTS
SET LIMIT LIMIT
OPEN
ACCESSORY POWER R9Ø GATE 2 RUNNING TIMER SINGLE BUTTON
ACCESSORY
24V OVLD TIMER TO RESET
R1Ø1 FORCE CLOSE STOP
OPEN BRN COM
R1ØØ F4 COM
GRN 10A 32V POWER
WHT
YEL K4 OFF MAX
F5
LIMIT BLU D21
RED K3 D9 R35
GATE 2 D8 C12 Z3 F7
Z4 C13 LOOP INPUTS
Q22 D22 C4 SHADOW
U3
C11 INTERRUPT
D15 CHGR COM
R4 C2 R196 F6 OVLD
SOLAR 24 VAC/ F2 F1 20A 32V
INPUT MOV2
J4 MOV1 C64 R9 D1 D4 FUSE
JMPR2 U2 JMPR1 D2 OPEN BATT 2 BATT 1
DB1
D4
D2
RESET
BUTTON
Press the Gate 1 right button to move gate to the desired
OPEN position. When gate is in the desired position, press
the LEARN LIMITS button again. Control board will beep.
DIAGNOSTIC
GATE 1
SET
CLOSE
PROGRAM CLOSE
Press the Gate 1 left button to move gate to the desired
CLOSED position. When gate is in the desired closed
position, press the LEARN LIMITS button again.
DIAGNOSTIC
GATE 1
SET
CLOSE
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.
RESET
BUTTON
SINGLE ARM RIGHT-HAND SIDE
PROGRAM OPEN
With the gate in the CLOSED position, press the LEARN
LIMITS button (SET OPEN LIMIT LED will blink).
Press the Gate 1 left button to move gate to the desired
OPEN position. When gate is in the desired position, press
the LEARN LIMITS button again. Control board will beep.
DIAGNOSTIC
GATE 1
SET
CLOSE
PROGRAM CLOSE
When the SET CLOSE LIMIT LED blinks, press the
Gate 1 right button. When gate is in the desired closed
position, press the LEARN LIMITS button.
DIAGNOSTIC
GATE 1
SET
CLOSE
33
LEARN LIMITS button
SET OFF U4
OPEN EN
LIMIT T
D9
Z3
Z4
U3
D4
D1
D2
Programming
OPEN EDGE/ OPEN EDGE/
R223
K6 CLOSE EDGE
ALARM
NO R2Ø7
Z2 Ø R227
C
MAGLOCK K5
NO PHO T O
L1
C R224
NC U4 Z22 R92
R2 ON MAGLOCK OFF Z9
Z1 LEARN XMITTER OPEN
10A 32V R1 PHO T O
GATE 1
BRN F3 R91
D1Ø K2 R94
GRN Z8
WHT CLOSE
DIAGNOSTIC PHO T O
YEL R93
BLU GATE 1
RED
K1 SET SET LEARN
Z12 Q9 LIMIT OPEN CLOSE LIMIT LIMITS
ACCESSORY R9Ø GATE 2 RUNNING TIMER COM
POWER OVLD
ACCESSORY TIMER TO CONTROL
24V R1Ø1 OVLD FORCE CLOSE INPUTS
OPEN
BRN R1ØØ SINGLE BUTTON
F4
GRN 10A 32V RESET
WHT
K4 OFF MAX STOP
YEL COM
BLU F5 COM
D21 R35 POWER
RED K3 D9
GATE 2 D8 C12 Z3 F7 LOOP
Z4 C13 C4 INPUTS
Q22 D22 SHADOW
U3
C11 INTERRUPT
D15 CHGR COM
R4 C2 R196 OVLD
24 VAC/ F6 F2
SOLAR F1 20A 32V
J4 INPUT MOV2 R9 D4
MOV1 C64 D1 FUSE BATT 2 BATT 1
JMPR2 U2 JMPR1 D2 OPEN
DB1
RESET
BUTTON