4.6 Basic Drive Setup Adjustments134 YASKAWA ELECTRIC TOEP C710606 09B YASKAWA AC Drive V1000 Installation & Start-Up Manual■ Using S-Curve Characteristics during Acceleration/DecelerationUsing S-curve characteristics to smooth acceleration and deceleration minimizes abruptshock to the load. Set S-curve characteristic time during acceleration/deceleration at startand acceleration/deceleration at stop.Note: 1. Setting S-curve characteristics will lengthen accel/decel times as follows:Accel Time = Selected Accel Time + (C2-01 + C2-02)/2Decel Time = Selected Decel Time + (C2-03 + C2-04)/22. Set longer S-curve times using PM Open Loop Vector Control.Setting ExampleFigure 4.22 illustrates S-curve characteristics switching between forward and reverse.Figure 4.22Figure 4.22 S-Curve Characteristics◆ Drive Duty Mode and Carrier Frequency Selection:C6-01 and C6-02■ Drive Duty Mode Selection: C6-01The drive has two different duty modes from which to select based on the loadcharacteristics. The drive rated current, overload capacity, carrier frequency, and maximumoutput frequency will change depending upon the duty mode selection. Use parameter C6-01(Duty Cycle) to select Heavy Duty (HD) or Normal Duty (ND) for the application. Thefactory setting is ND. Refer to Specifications on page 289 for details about the rated current.HD and ND Mode SelectionsMode HD Rating ND Duty RatingC6-01 0 1C2-02C2-01C2-03 C2-04C2-02C2-01C2-03C2-04Forward RunCommandReverse RunCommandOutputFrequency
