Yaskawa VS-616PS5 Series Programming Manual Manual de usuario descargar pdf (Pagina 34)

34 VS-616PS5 Programming Manual

C7 S-Curve Accel/Decel

An S-curve pattern is used to reduce shock and provide smooth transitions during machine

acceleration and deceleration. S-curve characteristic time is the time it takes to reach the set

accel/decel rate during a speed change.

Setting Range: 0.00 to 2.50s

Factory Default: 0.00s

The following figure shows FWD/REV run switching with deceleration to stop.

C7-01 S-Curve Time at Acceleration Start A

C7-02 S-Curve Time at Acceleration End A

C7-03 S-Curve Time at Deceleration Start A

C7-04 S-Curve Time at Deceleration End A

Output Frequency

Frequency Reference

Output Frequency

S-curve Characteristic

Time

Time (Tsc)

Figure 15 S-curve Characteristic Timing Diagram

FWD Run Command

REV Run Command

Output Frequency

C7-02

C7-03

C7-01

C7-04

DC Injection Braking

Time at Stop

B2-04

Figure 16 S-curve Characteristics - FWD/REV Operation

C7-01

C7-02 C7-03

C7-04

Time to accelerate from the minimum frequency

to the maximum frequency (total acceleration)

= C1-XX + (C7-01 + C7-02)/2

Section C: Tuning Parameters

C7 S-Curve Accel/Decel

1 2 ... 29 30 31 32 33 34 35 36 37 38 39 ... 112 113

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Yaskawa VS-616PS5 Series Programming Manual Manual de usuario Pagina 34