Locks; Miscellaneous Wiring - Chamberlain LA412 Instruction Manual

LOCKS

MAGLOCK (2 Terminals, N.C. and COM)
Relay contact output, Normally - closed (N.C.) output for maglocks.
Relay activates prior to motor activation and during motor run. Relay is
off when motor is off.
SOLENOID (2 Terminals, N.O. and COM)
Normally - open (N.O.) output for solenoid locks
Relay activates prior to motor activation and during motor run. Relay is
off when motor is off.
NOTE: To conserve power for solar applications, the lock relay will only
activate for four seconds near the close limit.

MISCELLANEOUS WIRING

SINGLE BUTTON CONTROL (SBC)
Gate command sequence - Open, Stop, Close, Stop,...
Soft open (maintained switch does not override external safeties and does
not reset alarm condition).
FIRE DEPARTMENT OPEN INPUT
Acts as hard open.
Maintained input overrides (ignores) external safeties (photoelectric
sensor and edge), pauses Timer-to-Close momentary input logic as single
button control and safeties remain active, re-enables Timer-to-Close.
ACCESSORY POWER 12 VDC, MAX 500 mA
• SWITCHED: Switched ON with gate motion (stays on 5 seconds after
motion).
• UNSWITCHED: 12 Vdc voltage out to power accessories, always ON.
ACCESSORY WIRING
(2 Terminals)
(2 Terminals)
(4 Terminals)
35
(control board)
(control board)
(main control board)
Single Button Control Station
SBC
Com
Fire Dept
Com
Fire Department
(main control board)
Accessory Power Switched
Com (-)
Acc Power +12 Vdc
Com (-)
Acc Power +12 Vdc
Accessory Power Unswitched
Maglock
-
+
(not provided)
Solenoid Lock
-
+
(not provided)