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Programming, Program limits, Program open program close – Chamberlain RESIDENTIAL GATE OPERATOR GA420D User Manual

Page 32

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Test the limits by pressing the SBC to open and close the gate.

NOTE: If the SET OPEN LIMIT LED is still blinking, the limits were not programmed successfully. Repeat the
programming making sure the gate is fully opened and closed for each respective limit. If the problem persists, refer to the
Troubleshooting section.

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 learned during the installation process. The programmed limit process uses a
combination of buttons on the control board.

The specific buttons used for programming depends on which side of the gates the control box is mounted on and how
many operators the installation includes. Refer to pages 11-12 to determine if the gate is Left- or Right-handed and for
explanation of PULL-TO-OPEN and PUSH-TO-OPEN.

If a mistake is made during the programming process press the RESET button on the outside of the control box to start
over.

Single Arm Left-Hand Side

Single Arm Right-Hand Side

NOTE: The “Learn Limits” mode can be exited at any time by pressing the RESET button. The mode will time-out
automatically after 60 seconds of inactivity.

Z22

R91

CLOSE
EDGE

R94

R92

R93

L1

R1

R2

Z1

K5

K6

K2

F3

10A 32V

D1Ø

OPEN EDGE/

OPEN EDGE/

PHO T O

OPEN
PHO T O

CLOSE
PHO T O

R227

R2Ø7

Z2 Ø

R223

P1

Z9

Z8

F2

F6

D4

D2

R9

C64

JMPR1

R224

U4

CONTROL
INPUTS

FORCE

TIMER TO

CLOSE

OFF MAX

OPEN

SINGLE BUTTON

RESET

STOP

SHADOW

INTERRUPT

CHGR
OVLD

COM

COM

COM

FUSE
OPEN

LOOP
INPUTS

POWER

BATT 1

BATT 2

F1 20A 32V

R35

D9

Z3

Z4

U3

D1

F5

C11

C13

C12

D15

C2

R4

R1Ø1

R1ØØ

R9Ø

Q9

K1

R196

Q22

D8

K3

K4

D21

D22

C4

ACCESSORY

OVLD

D6

JMPR2

MOV1

MOV2

DB1

U2

Z12

24 VAC/
SOLAR
INPUT

GATE 2

ACCESSORY

POWER

MAGLOCK

ALARM

GATE 1

C

C

NC

NO

NO

GRN

WHT

YEL

BLU

RED

BRN

GRN

WHT

YEL

BLU

RED

BRN

F4

10A 32V

F7

24V

COM
OVLD

TIMER

RUNNING

GATE 2

SET
OPEN
LIMIT

SET
CLOSE
LIMIT

LEARN
LIMITS

DIAGNOSTIC

GATE 1

J4

LEARN
XMITTER

MAGLOCK

ON OFF

L1

D4

D2

R9

C64

JMPR1

U4

FORCE

R35

D9

Z3

Z4

U3

D1

D27

D27

C11

C12

D6

JMPR2

MOV1

DB1

U2

GATE 2

SET
CLOSE
LIMIT

LEARN
LIMITS

DIAGNOSTIC

GATE 1

MAGLOCK

ON OFF

SET

OPEN

LIMIT

LEARN LIMITS button

Programming 32

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.

OPEN EDGE/

D27

SET

CLOSE

DIAGNOSTIC

GATE 1

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.

OPEN EDGE/

D27

SET

CLOSE

DIAGNOSTIC

GATE 1

OPEN EDGE/

D27

ACCESSORY

OVLD

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.

OPEN EDGE/

D27

ACCESSORY

OVLD

SET

CLOSE

DIAGNOSTIC

GATE 1

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.

OPEN EDGE/

D27

ACCESSORY

OVLD

SET

CLOSE

DIAGNOSTIC

GATE 1

The control board beeps and the SET OPEN LIMIT and SET CLOSE LIMIT LEDs stop blinking,
programming is now complete.

Z22

R91

CLOSE
EDGE

R94

R92

R93

L1

R1

R2

Z1

K5

K6

K2

F3

10A 32V

D1Ø

OPEN EDGE/

OPEN EDGE/

PHO T O

OPEN
PHO T O

CLOSE
PHO T O

R227

R2Ø7

Z2 Ø

R223

P1

Z9

Z8

F2

F6

D4

D2

R9

C64

JMPR1

R224

U4

CONTROL
INPUTS

FORCE

TIMER TO

CLOSE

OFF MAX

OPEN

SINGLE BUTTON

RESET

STOP

SHADOW

INTERRUPT

CHGR
OVLD

COM

COM

COM

FUSE
OPEN

LOOP
INPUTS

POWER

BATT 1

BATT 2

F1 20A 32V

R35

D9

Z3

Z4

U3

D1

F5

C11

C13

C12

D15

C2

R4

R1Ø1

R1ØØ

R9Ø

Q9

K1

R196

Q22

D8

K3

K4

D21

D22

C4

ACCESSORY

OVLD

D6

JMPR2

MOV1

MOV2

DB1

U2

Z12

24 VAC/
SOLAR
INPUT

GATE 2

ACCESSORY

POWER

MAGLOCK

ALARM

GATE 1

C

C

NC

NO

NO

GRN

WHT

YEL

BLU

RED

BRN

GRN

WHT

YEL

BLU

RED

BRN

F4

10A 32V

F7

24V

COM
OVLD

TIMER

RUNNING

GATE 2

SET
OPEN
LIMIT

SET
CLOSE
LIMIT

LEARN
LIMITS

DIAGNOSTIC

GATE 1

J4

LEARN
XMITTER

MAGLOCK

ON OFF

L1

D4

D2

R9

C64

JMPR1

U4

FORCE

R35

D9

Z3

Z4

U3

D1

D27

D27

C11

C12

D6

JMPR2

MOV1

DB1

U2

GATE 2

SET
CLOSE
LIMIT

LEARN
LIMITS

DIAGNOSTIC

GATE 1

MAGLOCK

ON OFF

SET

OPEN

LIMIT

With the gate in the closed position, press the LEARN
LIMITS
button (SET OPEN LIMIT LED will blink).

Program Open

Program Close

LEARN LIMITS button

With the gate in the closed position, press the LEARN
LIMITS
button (SET OPEN LIMIT LED will blink).

Program Open

Program Close

RESET

BUTTON

RESET

BUTTON

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