Troubleshooting; Wiring Diagram - Chamberlain LiftMaster LA412 Owner's Manual

TROUBLESHOOTING

To protect against fire and electrocution:
• DISCONNECT power and battery BEFORE installing or servicing operator.

WIRING DIAGRAM

Fault Alarm
Automatic Gate Lock
(optional)
Gate 1 (Primary)
12V, 500mA
Gate 2 (Secondary)
T o protect against fire and electrocution:
• DISCONNECT power and battery BEFORE installing or servicing operator .
For continued protection against fire:
• Replace ONL Y with fuse of same type and rating.
» WIRING DIAGRAM
*
R182
C1Ø1
13
ALARM
BLK
RED
D36
RED
SOL
BLK
GND
*
12
MAGR
D42
LOCK
11
Z1
R2
R1
GATE 1
D1Ø
BRN
BR
GRN
GR
WHT
WH
YEL
YL
BLU
BL
RED
RD
F8
*
10 Z12
ACCESSORY
POWER
12 V
9
R9Ø
BRN
R1ØØ R1Ø1
BR
GRN
GR
WHT
WH
YEL
YL
BLU
BL
RED
RD
GATE 2
Q22
24
F1
15
14
For continued protection against fire:
• Replace ONLY with fuse of same type and rating.
1
23
ACCESSORY
0VLD
C75
ON OFF
F12
LEARN
LOCK /
XMITTER
BIPART DELAY
C7Ø
16
C71
17
C72
C73
18
DIAGNOSTIC
GATE 1
19
SET SET
LEARN
OPEN CLOSE
LIMITS
LIMIT LIMIT
TIMER
GATE 2
RUNNING
20 TIMER TO
FORCE
21
22
OFF MAX
OFF
D44
F7
Z4
D2
R196
R42Ø
R423
F3
K6
JU2
R22
U2
DB1
NOTE: Batteries MUST
be connected to operate.
OPTIONAL TRANSFORMER
NOTE: 14.5 V output
on transformer.
1. Antenna Input
2. Close Edge
3. Open Edge/Photo
4. Open Photo
5. Close Photo
6. Control Inputs
7. Loop Inputs
8. AC PWR/SOLAR
36
2
CLOSE
C66 C65
EDGE
3
OPEN EDGE/
PHOTO
U4
4
OPEN
PHOTO
5
CLOSE
PHOTO
R93
CTRL PWR
SINGLE BUTTON
OVLD
CONTROL
INPUTS
CLOSE
OPEN
SINGLE BUTTON
RESET
STOP
MAX
CTRL PWR
CTRL PWR
R184
6
LOOP
INPUTS
C13
SHADOW
D129
INTERRUPT
CHGR
PWR
CTRL
OVLD
AC PWR
7
/SOLAR
8
SOLAR PANEL
RED
BLK
9. Gate 2
10. Accessory Power
11. Gate 1
12. Lock (Solenoid/Maglock) Output
13. Alarm Output
14. Battery 1 Connector
15. Battery 2 Connector
16. Lock/BiPart Delay
*
EDGE
*
50-220 SAFETY SENSORS
OR
EDGE
*
50-220 SAFETY SENSORS
*
50-220 SAFETY SENSORS
OPEN (EXIT LOOP )
SINGLE BUTTON (SBC)
RESET
STOP
*
SHADOW LOOP
INTERRUPT LOOP
*
OPTIONAL GROUND ROD
17. Learn Xmitter
18. Primary Gate Jog
19. Learn Limits
20. Secondary Gate Jog
21. Force
22. Timer To Close
23. Receiver Module
24. Fuses (20 Amp)