5.3 C: Tuning n C2-01 to C2-04: S-Curve Characteristics C2-01 through C2-04 set separate S-curves for each section of the acceleration or deceleration. Figure 5.6 explains how S-curves are applied. FWD run REV run Output frequency C2-02 C2-03 Figure 5.6 S-Curve Timing Diagram - FWD/REV Operation Setting the S-curve will increase the acceleration and deceleration times. Actual accel time = accel time setting + (C2-01 + C2-02)/2 Actual decel time = decel time setting + (C2-03 + C2-04)/2 u C3: Slip Compensation The 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. n C3-01: Slip Compensation Gain This 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. Adjusts 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. n C3-02: Slip Compensation Primary Delay Time u C4: Torque Compensation The torque compensation function compensates for insufficient torque production at start-up or when a load is applied. Note: Before making changes to the torque compensation gain make sure the motor parameters and V/f pattern are set properly. n C4-01: Torque Compensation Gain Sets the gain for the torque compensation function. 78 SIEP C710606 33A OYMC AC Drive – J1000 User Manual No.
Parameter Name Setting Range Default C2-01 S-Curve Characteristic at Accel Start 0.00 to 10.00 s 0.20 s C2-02 S-Curve Characteristic at Accel End 0.20 s C2-03 S-Curve Characteristic at Decel Start 0.20 s C2-04 S-Curve Characteristic at Decel End 0.00 s C2-02 C2-03 C2- 04 y C2-01 C2-04 C2-01 No. Parameter Name Setting Range Default C3-01 Slip Compensation Gain 0.0 to 2.5 0.0 No. Parameter Name Setting Range Default C3-02 Slip Compensation Primary Delay Time 0 to 10000 ms 2000 ms No. Parameter Name Setting Range Default C4-01 Torque Compensation Gain 0.00 to 2.50 1.00