Figure 5.27 explains how S-curves are applied.C2-02C2-01C2-03 C2-04C2-02C2-01C2-03C2-04FWD runREV runOutputfrequencyFigure 5.27 S-Curve Timing Diagram - FWD/REV OperationSetting the S-curve will increase the acceleration and deceleration times.Actual accel time = accel time setting + (C2-01 + C2-02)/2Actual decel time = decel time setting + (C2-03 + C2-04)/2u C3: Slip CompensationThe Slip Compensation function prevents motor speed loss due to an increase in load.Note: Before making changes to the Slip Compensation parameters, make sure the motor parameters and V/f pattern are set properly or performAuto-Tuning.n C3-01: Slip Compensation GainThis parameter sets the gain for the motor slip compensation function. Although this parameter rarely needs to be changed,adjustments might be needed under the following situations:• If the speed at constant frequency reference is lower than the frequency reference, increase C3-01.• If the speed at constant frequency reference is higher than the frequency reference, decrease C3-01.No. Parameter Name Setting Range DefaultC3-01 Slip Compensation Gain 0.0 to 2.5 Determined byA1-02Note: Default setting is 0.0 in V/f Control (A1-02 = 0). Default setting is 1.0 in Open Loop Vector Control (A1-02 = 2). This parameter is disabledwhen using V/f Control with Simple PG Feedback (H6-01 = 3).n C3-02: Slip Compensation Primary Delay TimeAdjusts the filter on the output of the slip compensation function. Although this parameter rarely needs to be changed,adjustments might be needed under the following situations:• Decrease the setting when the slip compensation response is too slow.• Increase this setting when the speed is not stable.No. Parameter Name Setting Range DefaultC3-02 Slip Compensation Primary Delay Time 0 to 10000 ms Determined byA1-02Note: When using V/f Control (A1-02 = 0), the default setting becomes 2000 ms. When using Open Loop Vector Control (A1-02 = 2), the defaultsetting becomes 200 ms. This function is not available when using V/f Control with Simple PG Feedback.n C3-03: Slip Compensation LimitSets the upper limit for the slip compensation function as a percentage of the motor rated slip (E2-02).No. Parameter Name Setting Range DefaultC3-03 Slip Compensation Limit 0 to 250% 200%5.3 C: TuningYASKAWA ELECTRIC SIEP C710606 18F YASKAWA AC Drive – V1000 Technical Manual 1515 Parameter Details
