3RW Soft Starters

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3RW Soft StartersProject planning aidsMain circuitControl circuitPossibility 2: Possibility 2:Inline circuit with main contactorControl of a main contactor and control by means of PLCL1L2L3Q13/N/PE 400 V AC 1) , 50 HzL1 1/N/PE AC 230 V1), 50 HzF2+24 V DCPLC outputsPLC inputsF3K1G1L1 L2 L3T1 T2 T3M1U1 V1 W1MPE 3~(optionalsemiconductorprotection)(optional linecontactor if floatingswitching of themotor is planned)NSB0_01495a1) Permissible values for main and control voltage,see Technical Specifications.2) Caution. Risk of restarting!The start command (e.g. from the PLC) must be reset prior to a reset commandbecause a new, automatic restart will take place automatically if astart command is active after the reset command. This applies especiallyin case of motor protection tripping.For safety reasons we recommend incorporating the group error output(terminals 95 and 96) in the controller.PENG1PEA1A2MStartMotor rightPS16No action2)L+ L- IN1 IN2 IN3 IN4 T1 T2Switch-on durationGroup error+13 14 23 24 33 34 95 96 98No action No actionNSB0_01496aK1No action(optional line contactorif floating switchingof the motor is planned)ResetTrip ResetPTC type A /ThermoclickSiemens LV 1 T · 20066/45
3RW Soft StartersProject planning aidsMain circuitControl circuitPossibility 3a: Possibility 3a:Inline circuit with ramp-down function DC braking 3) Control of the DC braking contactor 3)(for device types 3RW44 22 to 3RW44 25)L1 3/N/PE 400 V AC 1) , 50 HzL2L3Q1L1 1/N/PE 230 V AC1), 50 Hz+24 V DCF2PLC outputF3G1L1 L2 L3T1 T2 T3K22M1U1 V1 W1MPE 3~(optionalsemiconductorprotection)K2 K2NSB0_01501aPENG1PEA1A2M Start2)ResetK2No actionNo actionL+ L- IN1 IN2 IN3 IN4 T1 T2DC braking contactor 3)96 +13 14 23 24 33 34 95 98NSB0_01502On periodNo action Group errorK2ResetMain circuitControl circuitPossibility 3b: Possibility 3b:Inline circuit with ramp-down function DC braking 3) Control of the DC braking contactor 3)(for device types 3RW44 26 to 3RW44 47)6PTC type AorThermoclickL1 3/N/PE 400 V AC 1) , 50 HzL2L3Q11)L1 1/N/PE 230 V AC , 50 Hz+24 V DCF2PLC outputF3G1L1 L2 L3T1 T2 T3K2 K33 3M1U1 V1 W1MPE 3~(optionalsemiconductorprotection)NSB0_01503aK4K3K2K4K2K3G1 A1PEA2PEM Start2)ResetMotor on rightNo actionL+ L- IN1 IN2 IN3 IN4 T1 T2DC braking contactor 3)96 +13 14 23 24 33 34 95 984)NSB0_01504ON periodNo action Group errorK4NNo actionResetPTC type AorThermoclick1) Permissible values for main and control voltage,see Technical Specifications.2) Caution. Risk of restarting!The start command (e.g. from the PLC) must be reset prior to a reset commandbecause a new, automatic restart will take place automatically if astart command is active after the reset command. This applies especiallyin case of motor protection tripping.For safety reasons we recommend incorporating the group error output(terminals 95 and 96) in the controller.3) If the ramp-down function "Combined braking" is selected, no brakingcontactor is required.If the ramp-down function "DC braking" is selected, a braking contactormust be used in addition. Type, see Fuse Coordination (inline circuit) onpages 6/31 to 6/33.For applications with large centrifugal masses (J Load > J Motor )we recommend the function "DC braking".The output 2 must be switched over to "DC braking contactor".4) Auxiliary relay K4, e.g.:LZX:RT4A4T30 (230 V AC rated control supply voltage),LZX:RT4A4S15 (115 V AC rated control supply voltage).6/46 Siemens LV 1 T · 2006
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3RW Soft Starters

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