LiftMaster SW470 SW490 GL BOARD Manual - Page 32

SINGLE PHASE WIRING DIAGRAM (SW490) 1 PHASE POWER IN (GN) GROUND (W) (GN) GL CONTROL BOARD 24 Vac - IN 24 Vac -COMMON J2 PLUG (GY) (Y) SOFT OPEN NC "B" LIMIT CONTACTOR B "A" LIMIT CONTACTOR A SEE NOTE 2 230V ONLY SEE NOTE 5 SEE NOTE 1 (W) PRIMARY R1 (BL) 24V Sec. 115 VOLT MOTOR CONNECTION 115 ONLY SEE NOTE 5 (Y) R2 (BK) B- ALARM ASSY 76-G0564 SEE NOTE 4 (Y) 230 VOLT MOTOR CONNECTION (Y) RPM - IN RPM - SUPPLY RPM GND RADIO COMMAND J2 PLUG SHADOW R3 +24 Vdc CLOSE STOP SOFT OPEN HARD OPEN INT. LOOP OBS. OPEN OBS. CLOSE 24 Vac - COMMON DC - GND LOCK 1 LOCK 2 ALARM 1 ALARM 1 1 2 J4 DUAL GATE RPM SENSOR R4 B+ ALARM ASSY 76-G0564 LEGEND PERMANENT TERMINAL J1 TERMINAL BLOCK TERMINAL BLOCK R 1 R 2 R 3 R 4 24 Vac RADIO SIGNAL NOTES: 1) TRANSFORMER PRIMARY VOLTAGE SAME AS OPERATOR LINE VOLTAGE 24V SECONDARY 60VA. 2) RELAY VOLTAGE SAME AS LINE VOLTAGE. 3) OPTIONAL WIRE HARNESS. 4) (B+) AND (B-) ARE 100dB SAFETY ALARMS. 5) WIRE COLOR: 120V BLACK, 208V RED, 230V ORANGE. APPLICATIONS: CONTROL WIRING TYPE - GL FIELD WIRING & ADJUSTMENTS MODEL TYPES: HORSEPOWER: VOLTAGE/PHASE: SW490 (HSW) 1/2, 3/4 & 1 115V, 208 & 230V - 1 PHASE ONLY 845 Larch Avenue, Elmhurst, IL 60125 DRAWING NUMBER: DATE: 7/29/03 01-G1979-1 REVISION: E ECN: 03-0401 32