5.3 C: TuningYASKAWA ELECTRIC SIEP C710616 27C YASKAWA AC Drive A1000 Technical Manual 165Parameter Details55.3 C: TuningC parameters are used to set the acceleration and deceleration characteristics, as well as S-curves. Other parameters inthis group cover settings for slip compensation, torque compensation, and carrier frequency.◆ C1: Acceleration and Deceleration Times■ C1-01 to C1-08: Accel, Decel Times 1 to 4Four different sets of acceleration and deceleration times can be set in the drive. They can be selected by digital inputs,by the motor selection, or can be switched automatically. Acceleration time parameters always set the time to acceleratefrom 0 Hz to the maximum output frequency (E1-04). Deceleration time parameters always set the time to deceleratefrom maximum output frequency to 0 Hz. C1-01 and C1-02 are the default active accel/decel settings.Switching Acceleration Times by Digital InputAccel/decel times 1 are active by default if no input is set. The accel/decel times 2, 3, and 4 can be activated by digitalinputs (H1- = 7 and 1A) as explained in Table 5.12.Table 5.12 Accel/Decel Time Selection by Digital InputFigure 5.30 shows an operation example for changing accel/decel. times. The example below requires that the stoppingmethod be set for “Ramp to stop” (b1-03 = 0).Figure 5.30Figure 5.30 Timing Diagram of Accel/Decel Time ChangeNo.<1> The setting range for the acceleration and deceleration times is determined by the accel/decel time setting units in C1-10. For example, if thetime is set in units of 0.01 s (C1-10 = 0), the setting range becomes 0.00 to 600.00 s.Parameter Name Setting Range DefaultC1-01 Acceleration Time 10.0 to 6000.0 s <1> 10.0 sC1-02 Deceleration Time 1C1-03 Acceleration Time 2C1-04 Deceleration Time 2C1-05 Acceleration Time 3 (Motor 2 Accel Time 1)C1-06 Deceleration Time 3 (Motor 2 Decel Time 1)C1-07 Acceleration Time 4 (Motor 2 Accel Time 2)C1-08 Deceleration Time 4 (Motor 2 Accel Time 2)Accel/Decel Time Sel. 1H1- = 7Accel/Decel Time Sel. 2H1- = 1AActive TimesAcceleration Deceleration0 0 C1-01 C1-021 0 C1-03 C1-040 1 C1-05 C1-061 1 C1-07 C1-08OutputfrequencyAccel Time 1(C1-01)Decel Time 1(C1-02) Accel Time 2(C1-03)Decel Time 2(C1-04)Decel Time 1(C1-02)TimeFWD (REV)Run commandON OFF ONONAccel/Decel Time Selection 1(Terminals S1 to S8, H1- = “7”)Accel Time 3(C1-05)Decel Time 3(C1-06)Accel Time 4(C1-07)Decel Time 4(C1-08)Decel Time 1(C1-02)ONOFFON OFF ONAccel/Decel Time Selection 2(Terminals S1 to S8, H1- = “1A”)ON
