Eaton S611 User Manual

Also see for S611: Installation leaflet Quick start installation guide Installation leaflet

Contents

54 S611 Soft Starter MN03902011E—May 2012 www.eaton.comMotor Phase ReversalThe S611 monitors the phase voltages to determine the incoming phase sequence (ABC orACB). If the monitored sequence differs from the trip setpoint setting, a motor phase reversalfault is issued. The phase reversal trip will need to be disabled when using an upstreamreverser.Motor Phase Reversal SettingsVoltage Phase ImbalanceThe S611 monitors the voltage imbalance when the motor is off and checks the value justprior to starting to determine if a fault shall be issued and the start will be terminated. Whenthe bypass contactors are engaged, the S611 monitors the voltage imbalance and issues avoltage imbalance fault if the measured value exceeds the threshold for the trip delay time.Note that the S611 will not generate a voltage imbalance fault when the motor is starting.Voltage Phase Imbalance SettingsUnder VoltageThe S611 monitors the minimum rms voltage and checks the value just prior to starting todetermine if a fault shall be issued and the start terminated. When the bypass contactors areengaged, the S611 monitors the minimum rms voltage and issues an under voltage fault if themeasured value drops below the threshold for the trip delay time. Note that the S611 will notgenerate an under voltage fault when the motor is starting.Under Voltage SettingsParameter Set Point Range Step Default NotesTrip threshold OFF (0)ABC (1)ACB (2)N/A ABC (1) Settable from the UIMode O/P LEDProtection Phase sequenceTrip delay N/A N/A N/A N/AParameter Set Point Range Step Default NotesTrip threshold OFF, 1–20%imbalance1% 6% Settable from the UIMode O/P LEDProtection Voltage unbal %Trip delay 1–60 seconds 1 10 seconds Settable from the UIMode O/P LEDOperation Advanced Conf—P.22Parameter Set Point Range Step Default NotesTrip threshold OFF, 1–99%rated voltage1% 90% Settable from the UIMode O/P LEDProtection Under voltage %Trip delay 1–60 seconds 1 10 seconds Settable from the UIMode O/P LEDOperation Advanced Conf—P.20www.comoso.com