Setting 1: Reverse EnabledNegative PI output will cause the drive to run in the opposite direction.n Fine-Tuning PIFollow the directions below to fine tune PI control parameters:Table 1.11 PI Fine TuningGoal Tuning Procedure ResultSuppress overshoot Increase the integral time (b5-03)Response Before adjustmentAfter adjustmentTimeAchieve stability quickly whileallowing some overshoot Decrease the integral time (b5-03)ResponseBefore adjustmentAfter adjustmentTimeSuppress long cycle oscillations(longer than the integral time setting) Increase the integral time (b5-03)ResponseBefore adjustmentAfter adjustmentTimeSuppress short cycle oscillations If oscillations are a problem, reduce theproportional gain (b5-02) or increase the PIprimary delay time (b5-08)Response Before adjustmentAfter adjustmentTimeu b8: Energy SavingThe Energy Saving feature improves overall system operating efficiency by operating the motor at its most efficient level.Note: 1. Energy Saving is not designed for applications that experience instantaneous heavy loads or applications that rarely operate with lightload conditions.2. Energy Saving is mainly designed for applications with variable torque, however Energy Saving is not appropriate for applications wherethe load may suddenly increase.3. The performance of the Energy Saving function depends on the accuracy of the motor data. Always perform Auto-Tuning and correctlyenter the motor data before using this function.n b8-01: Energy Saving Control SelectionEnables or disables the Energy Saving function.Note: Enabling the Energy Saving function when using a PM motor may adversely affect motor efficiency depending on the type of PM motor.Disable the Energy Saving function in such cases.1.2 b: ApplicationYASKAWA SIEP YAIZ1U 03B YASKAWA AC Drive – Z1000 Programming Manual 491 Parameter Details
