LiftMaster SW470 SW490 GL BOARD Manual - Page 31

SINGLE PHASE WIRING DIAGRAM (SW470) 1 PHASE POWER IN SWITCH NOTE 1 MOTOR GROUND GL CONTROL BOARD J2 PLUG 24 Vac - IN 24 Vac - COMMON SOFT OPEN NC "B" LIMIT CONTACTOR B NOTE 1 PRIMARY 24V SEC. SEE NOTE 2 R 2 SEE NOTE 4 ALARM ASSY 76-G0564 "A" LIMIT CONTACTOR A RPM - IN RPM - SUPPLY RPM GND RPM SENSOR RADIO COMMAND J2 PLUG SHADOW +24 Vdc R3 CLOSE STOP SOFT OPEN R4 HARD OPEN INT. LOOP OBS. OPEN OBS. CLOSE 24 Vac - COMMON DC - GND LOCK 1 LOCK 2 ALARM 1 ALARM 1 B+ ALARM ASSY 76-G0564 LEGEND PERMANENT TERMINAL J1 TERMINAL BLOCK TERMINAL BLOCK 1 2 J4 DUAL GATE 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) TERMINAL DESIGNATIONS SHOWN FOR 115V ONLY. 3) OPTIONAL WIRE HARNESS. 4) (B+) AND (B-) ARE 100dB SAFETY ALARMS. APPLICATIONS: CONTROL WIRING TYPE - GL FIELD WIRING & ADJUSTMENTS MODEL TYPES: HORSEPOWER: VOLTAGE/PHASE: SW470 (MSW) 1/2 115V & 230V, 50/60Hz - 1 PHASE ONLY 845 Larch Avenue, Elmhurst, IL 60125 DRAWING NUMBER: DATE: 7/29/03 01-G1978 REVISION: E ECN: 03-0401 31