LiftMaster T T MECHANICAL Manual - Page 15

THREE PHASE WIRING DIAGRAM 1742-3 RADIO RECEIVER R1 R2 R3 AUX.TERMINAL BLOCK FOR RADIO C NO AUX.OPEN L/S NC ORANGE YELLOW RED RED YELLOW PURPLE ORANGE OPEN LIMIT SWITCHES OPEN L/S NC C ORANGE ORANGE PURPLE RED YELLOW GREY PURPLE CLOSE A1 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 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 BLACK BROWN LOAD 24VAC YELLOW BLACK XFMR **LINE WIRE NUT ( 3/4 HP & BELOW) R1 RELAY ( 3/4 HP & BELOW ) BROWN RED PURPLE PURPLE C NO NC ORANGE ORANGE RED YELLOW GREY PURPLE BL-BK BL-BK BRAKE ( WHEN REQ'D ) BROWN BROWN ( 1 HP & ABOVE ) ( 3/4 HP & BELOW ) GY 1 BR P 2 BR Y 3 INTERLOCK ( OPTIONAL ) BL-BK 74 J 85 96 J TO MOTOR BL-BK 230V. CONNECTION BL-BK GY BR P BR Y 17 28 39 4J 5 6J BL-BK 460V. CONNECTION GY 1 BR P 2 BR Y 3 BL-BK J BL-BK 575V. CONNECTION OVERLOAD (UP TO 3/4 HP) 575V. BRAKE SOLENOID ( WHEN REQUIRED ) OVERLOAD (UP TO 3/4 HP) 230V. BRAKE SOLENOID ( WHEN REQUIRED ) OVERLOAD (UP TO 3/4 HP) 230V. BRAKE SOLENOID ( WHEN REQUIRED ) *SEE NOTE: T1 L1 T2 L2 T3 L3 BROWN 96 BROWN 95 OVERLOAD ( 1 HP & ABOVE ONLY ) RED ORANGE GREY ORANGE PURPLE PURPLE RED ORANGE YELLOW ORANGE BROWN BROWN ORANGE YELLOW YELLOW GREY BLACK BLACK BLACK 1 2 3 4 5 7 10 L1 L2 L3 GROUND OPEN EXT. INTLK. * - Shipped from Factory CLOSE CONTROL WIRING OPTIONS CLOSE TO OPEN AND CLOSE L1 L2 L3 * C2 WIRING: Constant Presssure to Close RED WIRE ON TERMINAL STOP **3 PHASE POWER IN #2 (Shipped from Factory) B2 WIRING: Momentary Contact to Close NOTES: SAFETY EDGE MOVE RED WIRE FROM TERMINAL #2 TO TERMINAL #3 1) TO REVERSE MOTOR DIRECTION: INTERCHANGE ANY 2 OF THE 3 POWER WIRES AT L1, L2 & L3, OR EXCHANGE PURPLE & GRAY MOTOR LEADS AT CONTACTOR 1 & 3 (3PH UNITS ONLY). **- Transformer Primary Voltage same as Line Voltage. 15