222 YASKAWA ELECTRIC TOEP C710606 09B YASKAWA AC Drive V1000 Installation & Start-Up Manual5.7 Auto-Tuning Fault Detection5.7 Auto-Tuning Fault DetectionAuto-Tuning faults are shown below. When the following faults are detected, the fault isdisplayed on the Digital Operator and the motor coasts to a stop. No fault or alarm outputswill occur◆ Auto-Tuning Codes, Causes, and Possible SolutionsTable 5.11 Auto-Tuning Codes, Causes, and Possible SolutionsLED Operator Display Error NameEr-01 Motor Data ErrorCause Possible SolutionsMotor data or data enteredduring Auto-Tuning incorrect.• Check that the motor data entered to the T1 parameters match the informationwritten on the motor nameplate input before Auto-Tuning.• Start Auto-Tuning over again and enter the correct information.Motor output and motor-ratedcurrent settings (T1-02 andT1-04) do not match.• Check the drive and motor capacities.• Correct the settings of parameters T1-02 and T1-04.Motor output and no-loadcurrent settings (T1-04 andE2-03) do not match.This data is required only whenAuto-Tuning for Open LoopVector Control or whenperforming StationaryAuto-Tuning.• Check the motor-rated current and no-load current.• Correct the settings of parameters T1-04 and E2-03.Base frequency and base motorrotations (T1-05 and T1-07) donot match.Set T1-05 and T1-07 to the correct value.LED Operator Display Error NameEr-02 Minor FaultCause Possible SolutionsMotor data entered duringAuto-Tuning was incorrect.• Motor data entered to the T1 parameters does not match the information writtenon the motor nameplate. Enter the correct data.• Start Auto-Tuning over again and enter the correct information.The wiring is faulty. • Check the wiring and correct defective connections.• Check around the machine.• Check the load.• Use the information on page 237 to find out what caused the problem.Load is too heavy.LED Operator Display Error NameEr-03 STOP Button Input
