Altistart 48 Enclosed Altistart 48 Soft Starters Page 34 Wiring Diagrams

34 Altistart 48 soft starters for asynchronous motors Reversing w/ isolation contactors Wiring Diagrams Recommended Wiring Diagrams (A) (D) (B) HAND OFF REV 2-WIRE CONTROL W / AUTO START AUTO DIRECTION (A) (D) (B) FWD OFF REV STOP RUN FWD (A) (C) RUN REV (B) (D) (E) 7 FWD AUTO F R F (A) (B) (D) HAND OFF REV 2-WIRE CONTROL W / AUTO START MANUAL DIRECTION FWD AUTO 2-WIRE CONTROL W / O AUTO DETAIL A 3-WIRE CONTROL 120V TS FR * IC1* TS RFR * * RUN FWD RELAY TS SCA * SHORTING CONTACTOR PILOT RELAY TS SC * SHORTING CONTACTOR SEE DETAIL A MOTOR THERMAL SW (A) (C) RRR 4 2 (R2A) (R2C) START UP 3 SCA TS END FR FAULT RELAY FORWARD CONTACTOR TS RRR * RUN REV RELAY RFR (B) (D) (E) (R1A) (R1C) FAULT 3 5 RFR IC2 IC2* TS 6 RRR IC1 REVERSING CONTACTOR RFR RRR R * POWER ON W * G * FAULT RUN FORWARD IC1 FR A * RUN REVERSE IC2 (A) FU1 FU4 CL2 FU2 FU3 T1 1 M SC IC1 SW A B C SC 2 6/T3 C2 4/T2 B2 2/T1 5/L3 3/L2 1/L1 A2 FU7 FU6 FU5 * IC2 IC2 * * AC LINE SUPPLY * = User supplied 1 2 3 4 5 For shorting contactor operation, add SC with associated circuitry. Relay contact located on ATS48 controller. Located at motor. Jumper if switch not present. Connect control power transformer for 120 V secondary voltage. Set RFR time slightly longer than the expected deceleration time from rated forward speed to zero speed. 6 Set RRR time slightly longer than the expected deceleration time from rated reverse speed to zero speed. 7 Remove these contacts to inhibit direction reversal without first depressing STOP push button. FU4 CL1 GND CL2 STOP RUN RFR RRR IC2 IC1 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 { REMOTE START REMOTE START Reversing with isolation contactors

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