LiftMaster GH GH -Mechanical New style w/ thermal overload change Manual - Page 15

THREE PHASE SCHEMATIC DIAGRAM • 10118-3 YELLOW GREY PURPLE BL-BK BL-BK BRAKE ( WHEN REQ'D ) BLACK BLACK RADIO RECEIVER C AUX.OPEN L/S R1 ORANGE R2 YELLOW R3 AUX.TERMINAL BLOCK FOR RADIO NO NC RED RED YELLOW PURPLE ORANGE OPEN LIMIT SWITCHES OPEN L/S NC C ORANGE ORANGE TO TERMINAL #2 PURPLE PURPLE TO TERMINAL #3 TIMER ( OPTIONAL ) GREY GREY C NC SAFETY L/S CLOSE LIMIT SWITCHES PURPLE NC CLOSE L/S C PURPLE PURPLE RED YELLOW GREY PURPLE A1 CLOSE A2 13 14 5 6 3 4 1 2 PURPLE PURPLE PURPLE BLACK BLACK WHITE ORANGE ORANGE A1 A2 13 14 5 6 3 4 1 2 OPEN ORANGE YELLOW BLACK BLACK BLACK BLACK BROWN LOAD 24VAC YELLOW BLACK XFMR LINE (SEE NOTE 2) WIRE NUT R1 RELAY (SEE NOTE 3) BROWN RED PURPLE PURPLE C NO NC ORANGE ORANGE RED TO MOTOR BK GY PUR YEL BK INTERLOCK ( OPTIONAL ) BL/BK 1 74 2 85 3 96 OVERLOAD (SEE NOTE 3) BL/BK 208/230 VOLT - 3 PHASE MOTOR CONNECTION BK BL/BK GY 1 74 PUR 2 85 OVERLOAD (SEE NOTE 3) YEL 3 96 BK BL/BK 230V BRAKE (WHEN PRESENT) RED ORANGE GREY ORANGE PURPLE PURPLE RED ORANGE YELLOW ORANGE BROWN BROWN ORANGE YELLOW YELLOW GREY BLACK BLACK BLACK *SEE NOTE: T1 L1 T2 L2 T3 L3 96 95 OVERLOAD (SEE NOTE 3) 12 3 OPEN CLOSE STOP 4 5 7 10 L1 L2 L3 GROUND EXT. INTLK. TO OPEN AND CLOSE SAFETY EDGE L1 L2 L3 3 PHASE POWER IN (SEE NOTE 2) * - Shipped from Factory CLOSE CONTROL WIRING OPTIONS * C2 WIRING: Constant Presssure to Close RED WIRE ON TERMINAL #2 (Shipped from Factory) B2 WIRING: Momentary Contact to Close MOVE RED WIRE FROM TERMINAL #2 TO TERMINAL #3 230V BRAKE (WHEN PRESENT) 575V BRAKE (WHEN PRESENT) 460 VOLT - 3 PHASE MOTOR CONNECTION BK GY PUR YEL BK BL/BK 1 OVERLOAD 2 (SEE NOTE 3) 3 BL/BK NOTES: 1) TO REVERSE MOTOR DIRECTION: INTERCHANGE PURPLE & GRAY MOTOR LEADS AT CONTACTOR 1 & 3. 2) TRANSFORMER PRIMARY & RELAY VOLTAGE SAME AS LINE VOLTAGE. 3) THREE PHASE UNITS MAY BE EQUIPPED WITH AN INTERNAL PILOT DUTY THERMAL OVERLOAD DEVICE, OR AN EXTERNAL LINE MONITORING DEVICE. 575 VOLT - 3 PHASE MOTOR CONNECTION 15