3RW Soft Starters

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3RW Soft Starters3RW44for High-Feature applications■ Technical specificationsType 3RW44 ..-.BC3. 3RW44 ..-.BC4.TerminalControl electronicsRated valuesRated control supply voltage A1/A2/PE V 115 AC 230 AC• Tolerance % -15/+10 -15/+10Rated control supply current STANDBY mA 30 20Rated control supply current ON• 3RW442. mA 300 170• 3RW443. mA 500 250• 3RW444. mA 750 400Maximum current (pickup bypass)• 3RW442. mA 1000 500• 3RW443. mA 2500 1250• 3RW444. mA 6000 3000Rated frequency Hz 50 ... 60 50 ... 60• Tolerance % –10 –10Type 3RW44 ..TerminalFactory presettingControl electronicsControl inputsInput 1 IN1 Start motor right parameter set 1Input 2 IN2 No actionInput 3 IN3 No actionInput 4 IN4 Trip resetSupplyL+/L-• Rated operational current mA Approx. 10 per input to DIN 19240• Rated operational voltage L+ Internal voltage: 24 V DC frominternal supply through terminal L+ toIN1 ... IN4. Maximum load at L+Approx. 55 mAL- External voltage: DC external voltage(according to DIN 19240) throughterminals L- and IN1 ... IN4(min. 12 V DC, max. 30 V DC)Thermistor motor protection inputInput T1/T2 PTC type A or Thermoclick DeactivatedRelay outputs (floating auxiliary contacts)Output 1 13/14 ON periodOutput 2 23/24 No actionOutput 3 33/34 No actionOutput 4 95/96/98 Group faultSwitching capacity of the relay outputs230 V/AC-15 A 3 at 240 V24 V/DC-13 A 1 at 24 VProtection against overvoltagesProtection by means of varistor through relay contactShort-circuit protection4 A gL/gG operational class;6 A quick (fuse is not included in scope of supply)Protective functionsMotor protection functionsTrips in the event ofThermal overloading of the motorTrip class to IEC 60947-4-1 Class 5/10/15/20/30 10Phase loss sensitivity % > 40Overload warningYesReset and recovery Manual/Automatic ManualReset option after tripping Manual/Automatic ManualRecovery time min. 2...30 2Device protection functionsTrips in the event ofThermal overloading of the thyristorsReset option after tripping Manual/Automatic ManualRecovery time min. 0.56Siemens LV 1 T · 20066/23
3RW Soft Starters3RW44for High-Feature applications6Type 3RW44 ..Factory presettingControl times and parametersControl timesClosing delay (with connected control voltage) ms < 50Closing delay (automatic mode) ms < 4000Recovery time (closing command in active ramp-down) ms < 100Mains failure bridging timeControl supply voltage ms 100Mains failure response timeLoad current circuit ms 100Reclosing lockout after overload tripMotor protection trip min. 1...30 1Device protection trip s 30Setting options for startingVoltage ramp for starting voltage % 20 ... 100 40Torque control for starting torque % 10 ... 100 50Torque control for limit torque % 20 ... 200 150Starting time s 0...360 20Maximum starting time s 1 ... 1000 DeactivatedCurrent limit value % 125 ... 550 450Breakaway voltage % 40 ... 100 80Breakaway time s 0...2 DeactivatedMotor heat output % 0...100 0Creep mode Left/Right runningSpeed factor as function of rated speed (n = n rated /factor) 3...21 7Creep torque (reference variable depends on the motor used but is % 20 ... 100 50always smaller than the rated torque of the motor)Setting options for ramp-downTorque control for stopping torque % 10 ... 100 40Ramp-down time s 0...360 10Combined braking % 20 ... 100 50DC braking % 20 ... 100 50Operating indicationsWarnings/error signalsTest voltageTest mains phasesReady to startStart activeMotor runningRamp-down activeMains voltage missingWrong start conditionPhase failure•L1•L2•L3Missing load phase•T1•T2•T3Failure• Contact element 1 (thyristor)• Contact element 2 (thyristor)• Contact element 3 (thyristor)Flash memory faultySupply voltage• Below 75 %• Below 85 %• Over 110 %Current unbalance exceededThermal motor model overloadPrewarning limit exceeded• Motor heating• Time-related trip reserveBypass elements defectiveMains overvoltageCurrent range exceededMotor blocking – shutdownCurrent limit exceededPower section overheatedPower section overtemperatureTemperature sensor- Overload- Open-circuit- Short-circuitGround fault detectedGround fault shutdownConnection abort in manual mode6/24 Siemens LV 1 T · 2006
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3RW Soft Starters

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