Altistart 48 Enclosed Altistart 48 Soft Starters Page 33 Wiring Diagrams

33 Altistart 48 soft starters for asynchronous motors Non-reversing w/ isolation contactor Wiring Diagrams * = User supplied 1 2 3 4 5 For shorting contactor operation add SC with associated control wiring. Relay contact located on ATS48 controller. Located at motor. Jumper if switch not present. Connect control power transformer for 120 V secondary voltage. Set RCR time slightly longer than expected deceleration time from rated speed to zero speed. Time delay RCR contact may be omitted if R1 is set to Isolation, or if stop type is freewheel. 120V TS FR* FAULT RELAY IC * ISOLATION CONTACTOR TS RCR* RUN COMMAND RELAY TS SCA* SHORTING CONTACTOR PILOT RELAY TS SC * SHORTING CONTACTOR (R1A) (R1C) RCR MOTOR THERMAL SW (A) (B) 3 2 4 5 (R2A) (R2C) END START UP SCA FR IC FR FU1 FU2 FU3 2 L C 4 U F RUN FAULT R* W * G* POWER ON SEE DETAIL A (C) RCR FAULT T1 1 OFF ON R O STOP START 2-WIRE CONTROL W / O AUTO DETAIL A 3-WIRE CONTROL (A) (B) HAND OFF AUTO 2-WIRE CONTROL W / AUTO (A) (C) (B) (A) (B) FU4 D N G 1 L C CL2 STOP RUN RCR LI3 LI4 +24V LO+ LO1 LO2 AO1 COM PTC1 PTC2 R1A R1C FAULT R2A R2C R3A R3C END START UP PROGRAMMABLE N.O. CONTACT ATS48 SOFT START TO CONTROL POWER TRANSFORMER { M SC IC SW A B C SC 2 6/T3 C2 4/T2 B2 2/T1 5/L3 3/L2 1/L1 A2 FU7 FU6 FU5 * * AC LINE SUPPLY REMOTE START Non-reversing with isolation contactor

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