5.3 C: TuningC parameters are used to set the acceleration and deceleration characteristics, as well as S-curves. Other parameters in thisgroup cover settings for slip compensation, torque compensation, and carrier frequency.u C1: Acceleration and Deceleration Timesn C1-01 to C1-04: Accel/Decel Times 1 and 2Two sets of acceleration and deceleration times can be set in the drive. They can be selected by a digital input. Accelerationtime parameters always set the time to accelerate from 0 to the maximum output frequency (E1-04). Deceleration timeparameters always set the time to decelerate from maximum output frequency to 0. C1-01 and C1-02 are the default activeaccel/decel settings.No. Parameter Name Setting Range DefaultC1-01 Acceleration Time 10.0 to 6000.0 s 10.0 sC1-02 Deceleration Time 1C1-03 Acceleration Time 2C1-04 Deceleration Time 2Switching Acceleration Times by Digital InputAccel/decel times 1 are active by default if no input is set. The accel/decel time 2 can be activated by a digital input (H1-oo= 7) as explained in Table 5.5.Table 5.5 Accel/Decel Time Selection by Digital InputAccel/Decel Time Sel. H1-oo = 7 Active TimesAcceleration Deceleration0 C1-01 C1-021 C1-03 C1-04Figure 5.5 shows an operation example for changing accel/decel. times. The example below requires that the stopping methodbe set for "Ramp to Stop" (b1-03 = 0).OutputfrequencyAccel Time 1(C1-01)Decel Time 1(C1-02) Accel Time 2(C1-03)Decel Time 2(C1-04)Decel Time 1(C1-02)FWD (REV)Run commandON OFF ONONAccel/Decel Time Selection(Digital Input H1-0x = “7”)Figure 5.5 Timing Diagram of Accel/Decel Time Changen C1-09: Fast-stop TimeParameter C1-09 will set a special deceleration that is used when certain faults occur or that can be operated by closing adigital input configured as H1-oo = 15 (N.O. input) or H1-oo = 17 (N.C. input). The input does not have to be closedcontinuously, even a momentary closure will trigger the Fast-stop operation.Unlike standard deceleration, once the Fast-stop operation is initiated, the drive cannot be restarted until the deceleration iscomplete, the Fast-stop input is cleared, and the Run command is cycled.A digital output programmed for “During Fast-stop” (H2-01/02/03 = 4C) will be closed as long as Fast-stop is active.No. Parameter Name Setting Range DefaultC1-09 Fast-stop Time 0.0 to 6000.0 s 10.0 s5.3 C: TuningYASKAWA ELECTRIC SIEP C710606 31B YASKAWA AC Drive – J1000 Technical Manual 855 Parameter Detailshttp://nicontrols.com
