Typical Circuit Diagrams. Typical Circuit Diagrams Basic connections with isolated contacts F2 - Overload relay Q1 - MPCB / ACB / MCCB /K2 - Main isolating contactors (AC-3 rated) F3 - Semiconductor Fuses (Optional) BH - Command "Ramp-up" BF - Command "Enable" ME - Monitoring signal "In operation" MH - Monitoring signal "End of ramp" Only with I-Option card MU - Monitoring signal "Overload". * With I-Option card only (C. T. connection) 230 V AC external power supply *** Thermistor or thermostat motor protection.1
Typical Circuit Diagrams Control through PLC Basic connections for PLC with 24 V = industry logic Q1- MPCB / ACB / MCCB - Main isolating contactor (AC-3 rated) F3 - Semiconductor Fuses (Optional) F2 - Overload relay L - is preferably to be earthed. Remove link 49-0 if there is a potential difference between L - and PE (max. permissible voltage 60 V) * With I-Option card only (C. T. connection) *** Thermistor or thermostat motor protection.2
Typical Circuit Diagrams Recommended connection : 3RW24 Line Connection for Soft Start (also with I-OPTION card) = Main isolating contactor (AC-3 rated) F3 = Semiconductor fuses (Optional) K3 = Bypass contactor (Optional) S1 = OFF push button (Momentary command) S2 = ON push button (Momentary command) * With I-Option only (C. T. connection).3
Typical Circuit Diagrams Recommended connection : 3RW24, Delta Connection for Soft Start (also with I-Option card) = Main isolating contactor (AC-3 rated) F3 = Semiconductor fuses (Optional) K3 = Bypass contactor (Optional) S1 = OFF push button S2 = ON push button *MU - only with I-Option card * With I-Option only (C. T. connection).4
Typical Circuit Diagrams Recommended connection : 3RW24, Line Connection Soft Start and Soft Stop (also with I-Option card) = Main isolating contactor (AC-3 rated) F3 = Semiconductor fuses (Optional) K3 = Bypass contactor (Optional) S1 = OFF push button S2 = ON push button K2 = Auxiliary contactor (4 NO) * With I-Option only (C. T. connection).
Typical Circuit Diagrams Recommended connection : 3RW24, Line connection as a Soft Start and Soft Stop for reversing application F3 = Semiconductor fuses (Optional) f = Main isolating contactor in forward direction R = Main isolating contactor in reverse direction ON1 = Forward direction ON2 = Reverse direction K3 = Bypass contactor (Optional) K2f = Auxiliary contactor (4NO + 4NC) K2R = Auxiliary contactor (4NO + 4NC) S1 = OFF push button (Momentary Contact) S2.0 = ON push button S2.1 (Momentary Contact) * With I-Option only (C. T. connection) 230 VAC, external power supply.6
Typical Circuit Diagrams Recommended connection : 3RW24, Line connection (also with I-Option) for soft start and speed change of motors in the pole-change Dahlander connection. This connection provides for zero-current contactor switching F3 = Semiconductor fuses (Optional) = Main isolating contactor (AC-3 rated) K3 = Bypass contactor (Optional) K4 = Auxiliary contactor (3NO + 1NC) K = Auxiliary contactor (4NO) K21 = Contactor - Slow speed 1 = Aux. Contactor (4NO) 2 = Aux. Contacor (4NO) K22-1= Star contactor (Dahlander wdg. only) S2 = ON slow speed S3 = ON high speed S1 = Off command F4 = Overload relay * With I-Option card only (C.T. Connection).7
Typical Circuit Diagrams Recommended connection : 3RW24, Line connection I-Option card combined with a star/delta starter for starting with low starting currents (e.g. screw compressors in bypass). PE L1 L2 L3 2 ~ 110...41 V F1 K6 21 22 MU * F2 S1 OFF F2 S2 ON K6 F3 ** G1 k4 41 1 42 PE L1 L2 L3 F k4 k4 K2 k3 k4 ME 2 3 4 MH BH 6 7 P10 3RW24 O PE 49 0 K2 k3 8BF 9 SW 10 K6 K3 K2 k4 T1 T2 * T3 H K2 K3 W1 V1 U1 M 3 ~ W2 V2 U2 F3 = Semiconductor fuses = Bypass contactor K2 = Delta contactor K3 = Star contactor K4 = ON -delay timers S1 = OFF Push button S2 = ON Push button K6 = Line contactor * With I-Option card only (C.T. Connection).8
Typical Circuit Diagrams Recommended connection : 3RW24, Delta connection combined with a star/ delta starter for emergency starting) F1 = Semiconductor fuses F3 = Motor feeder HRC fuses = Bypass contactor K2 = Delta contactor K3 = Star contactor K = Auxiliary contactor (3NO + 1NC) K4 = 7PU60 star-delta timer S1 = OFF push button S2 = ON push button S3 = Star-delta change over switch K6 = Line contactor * With I-Option card only (C. T. connection) Rapid push button start is not possible. Push button must be pressed for sufficient time..9
Typical Circuit Diagrams Recommended connection : 3RW24, Line connection as a voltage controller (e.g. for running the motor at lower speed, special motor, control of electric heating) F1 = Motor feeder fuses = Main isolating contactor (AC-3 rated) F3 = Semiconductor fuses US -11 = 10kΩ potentiometer * With I-Option card only *** Thermistor or thermostat motor protection.10