4.7 Auto-Tuningu Types of Auto-TuningThere are three types of Auto-Tuning. Select the best type of Auto-Tuning for the application.Refer to Auto-Tuning Procedure on page 115.Type Setting Application Conditions and Benefits Control ModeRotationalAuto-Tuningfor V/f Control T1-01 = 3• Assumes the motor can rotate during theAuto-Tuning process• Improves torque compensation, slipcompensation, energy savings, and Speed Searchperformance• Should be performed when Speed EstimationType Speed Search or Energy Saving is used inV/f ControlV/f ControlRotational Auto-Tuningfor OLV Control T1-01 = 0• Assumes the motor can rotate during theAuto-Tuning process• Achieves high-performance motor control andshould be performed whenever Open LoopVector Control is usedOpen Loop Vector ControlStationary Auto-Tuningfor Line-to-LineResistance (V/fand OLVControl)T1-01 = 2For use when:• The motor cable exceeds 50 m• The motor cable length has been modified afterAuto-Tuning has been previously performed• When motor capacity and drive capacity differV/f Control, Open LoopVector ControlNote: Auto-Tuning cannot be performed on permanent magnet motors (IPM, SPM, etc.).u Before Auto-Tuning the DriveCheck the items below before Auto-Tuning the drive.n Basic Auto-Tuning Preparations• Auto-Tuning automatically determines the electrical characteristics of the motor. This isfundamentally different from other types of Auto-Tuning features used in servo systems.• Auto-Tuning requires the user to input data from the motor nameplate. Make sure theinformation written on the nameplate is available before Auto-Tuning the drive.• For best performance, be sure the drive input supply voltage equals or exceeds the motorrated voltage.Note: Performance can be enhanced by using a motor with a base voltage that is 20 V (40 V for 400 V classmodels) lower than the input supply voltage. This may be of special importance when operating themotor above 90% of base speed, where high torque precision is required.4.7 Auto-TuningYASKAWA ELECTRIC TOEP C710606 47A YASKAWA AC Drive – V1000 Quick Start Guide 1134 Start-Up Programming& Operation
