Locks; Miscellaneous Wiring - Chamberlain LiftMaster LA412 Installation 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.
NOTE: For AC power install a Siemens S10K30 MOV (Metal Oxide
Varistor) or equivalent. For DC power install a 1N4005 diode or
equivalent.
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: For AC power install a Siemens S10K30 MOV (Metal Oxide
Varistor) or equivalent. For DC power install a 1N4005 diode or
equivalent.

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)
Siemens S10K30 MOV
(Metal Oxide Varistor)
or equivalent.
(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 +24 Vdc
Com (-)
Acc Power +24 Vdc
Accessory Power Unswitched
Maglock
1N4005 diode
or equivalent.
-
+
(not provided)
Solenoid Lock
1N4005 diode
or equivalent.
-
+
(not provided)