1, three starting mode: A, voltage ramp departure ... main circuit power inputConnect 3 phase AC through breakerU.V.WSofter output terminalConnect three-phase asynchronousL21.L22.L23Externalbypass contactor special ... for choosingdefencivefunctionsoft starter protectionover current,overload, overheating, unbalanced three-phase,light load, external problem etcsoft starter alarmemergency stopping,light ...