LiftMaster LA400DC LA400DC Owner's Manual - Page 34

ACCESSORY WIRING 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. (control board) Maglock (control board) 1N4005 diode or equivalent. Siemens S10K30 MOV (Metal Oxide Varistor) or equivalent. - + (not provided) Solenoid Lock MISCELLANEOUS WIRING SINGLE BUTTON CONTROL (SBC) (2 Terminals) 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 (2 Terminals) 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 24 VDC, MAX 500 mA (4 Terminals) • SWITCHED: Switched ON with gate motion (stays on 5 seconds after motion). • UNSWITCHED: 24 Vdc voltage out to power accessories, always ON. 1N4005 diode or equivalent. - + (not provided) (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 32