Using S-Curve Characteristics During Acceleration/Deceleration; Drive Duty Mode And Carrier Frequency Selection; Drive Duty Mode Selection: C6-01; S-Curve Characteristics - YASKAWA V1000 Series Installation & Start-Up Manual

4.6 Basic Drive Setup Adjustments

Using S-Curve Characteristics during Acceleration/Deceleration

■
Using S-curve characteristics to smooth acceleration and deceleration minimizes abrupt
shock to the load. Set S-curve characteristic time during acceleration/deceleration at start
and 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)/2
Decel Time = Selected Decel Time + (C2-03 + C2-04)/2
2. Set longer S-curve times using PM Open Loop Vector Control.
Setting Example
Figure 4.22 illustrates S-curve characteristics switching between forward and reverse.
Figure 4.22
Forward Run
Command
Reverse Run
Command
Output
Frequency
◆

Drive Duty Mode and Carrier Frequency Selection:

C6-01 and C6-02

Drive Duty Mode Selection: C6-01

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The drive has two different duty modes from which to select based on the load
characteristics. The drive rated current, overload capacity, carrier frequency, and maximum
output 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. The
factory setting is ND.
HD and ND Mode Selections
Mode
C6-01
134
C2-02
C2-01
Figure 4.22 S-Curve Characteristics
Refer to Specifications on page 289
HD Rating
0
YASKAWA ELECTRIC TOEP C710606 09B YASKAWA AC Drive V1000 Installation & Start-Up Manual
C2-04
C2-03
C2-01
C2-02
for details about the rated current.
C2-04
C2-03
ND Duty Rating
1