Delta Electronics AC Motor Drive VFD-VE Series User Manual

Contents

Delta Electronics AC Motor Drive VFD-VE Series User Manual Manual pdf 220 page image

Chapter 5 Troubleshooting|Revision August 2008, 03VE, SW V2.04 5-55.7 Display of KPV-CE01 is AbnormalAbnormal display or no displayTurn the power off and poweron again after display is offNoYesYes YesNoDisplay normal?AC motor drive works normallyFix connector and eliminate noiseCheck if all connectors are connectedwell and if there is no noiseAC motor drive has malfunction.Please contact DELTA.5.8 Phase Loss (PHL)Phase lossNoYesCheck if the wiring of terminals R, S and T is OK Connect all threephase wellCheck if the screws of terminals are tightened No Tighten all screwsMaybe AC motor drive has malfunction or misoperationdue to noise. Please contact DELTA.NoYesYes Please check the wiringand power system forabnormal powerCheck if the input voltage of R, S, T is unbalancedYesYes Please check the wiringand power system forabnormal powerCheck if the input voltage of R, S, T is unbalancedNoYes Please check the fuseat AC sideCheck if it is 40hp and above