Earth Ground Rod Installation (Optional); Power Wiring - Chamberlain LA400 Installation And Operation Manual

EARTH GROUND ROD
INSTALLATION (OPTIONAL)
NOTE: For proper operation, do not connect the
earth ground rod to the green screw on the outlet
plate.
1. Install earth ground rod within 3' (0.9 m) of the
operator.
2. Disconnect and remove the green/yellow ground wire connected to the screw terminal of the control board.
3. Attach earth ground rod wire to the screw terminal of the control board marked
connection remains securely connected to the green screw on the outlet plate.
To AVOID damaging gas, power or other underground utility
lines, contact underground utility locating companies BEFORE
digging.
P2
J19
Ø14GPØ89ØE
Ø14SKØ89ØE Ø14LGØ89ØE
NO
L1
C
NC 1 S8 OFF ON SAVE
OFF ON MAGLOCK
LEARN SINGLE DUAL MODE
ALARM XMITTER NO NC EDGE
NO NC PHOTO
2
S1
BRN
MAGLOCK GRN
WHT R223
YEL J19 CLOSE
EDGE
BLU R2Ø7
NO Z2Ø
Z1 C R227
Z1 RED K5
OPEN EDGE/ PHOTO
GATE 1 GATE 1 L1
R224 24V
GRN U4 Z22
R2 R92
LEARN Z9
10A 32V R1 XMITTER OPEN PHOTO
ACCESSORY 2
POWER F3 R91
CONTROL
D1Ø K2 INPUTS
24V DIAGNOSTIC OPEN
BLU BRN GATE 1 SINGLE BUTTON
GRN SET SET RESET
Z12 K1 Q9 OPEN CLOSE LIMITS LEARN
WHT LIMIT LIMIT
STOP
R9Ø GATE 2 RUNNING TIMER
ACCESSORY YEL COM
POWER CONTROL
BLU FORCE TIMER TO CLOSE SINGLE BUTTON INPUTS COM
R1Ø1 OPEN
RED R1ØØ POWER
F4 SINGLE BUTTON
GATE 2 ACCESSORY RESET
10A 32V OVLD
K4 STOP
OFF MAX COM
F5 COM
D21 R35 POWER
K3 D9
D8 C12 D27 Z3 F7 LOOP
Z4 C13 INPUTS
Q22 D22 C4 SHADOW
U3
C11 INTERRUPT
POWER CHGR COM
C2 D15 R196 OVLD
24 VAC/ F6
GATE 2 D27 Z3 SOLAR F2 F1 20A 32V
INPUT MOV2
MOV1 C64 R9 D1 D4 FUSE BATT 2 BATT 1
JMPR2 JMPR1 OPEN
DB1 U2 D2
R4
J4 FUSE
OPEN FUSE
OPEN
12 Gauge Wire
Earth Ground
Installation (Optional)
22
CAUTION
. Ensure the power wiring ground
R4 C2
J4
Ground Screw
Control Box
3' (0.9 m)
8' (2.4 m)
24 VAC/
SOLAR
INPUT