3RW Soft Starters

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