Specifications

VFD-G Series

5-7

01 - 20 S Curve Delay Time in Accel Factory Setting: 0.00

01 - 21 S Curve Delay Time in Decel

Settings 0.00~2.50sec

 These parameters enable the S curve. The longer the S curve time period the smoother the

transition between speeds.

01 - 22

Modulation Index

Factory Setting: 1.00

Settings 0.90~1.20 Unit: 0.1

 This parameter sets the ratio of the Maximum Output Voltage to the input voltage.

 The Maximum Output Voltage (Pr.01-02) is normally limited to the input voltage. With the

Modulation Index parameter, the user is able to increase the output voltage beyond the

incoming line voltage.

 A Modulation Index of 1, defines the Maximum Output Voltage (Pr. 1-02) is equal to the

input voltage.

 A Modulation index of 1.2, defines the Maximum Output Voltage (Pr. 1-02) is 20% higher

than in the input voltage. Please note, the output voltage wave form will be distorted due to

harmonics and may increase torque ripple and noise in the motor.

01 - 23 Accel/Decel Time Unit Factory Setting: 01

Settings 00: Unit is 1 Sec

01: Unit is 0.1 Sec

02: Unit is 0.01 Sec

 This parameter sets the resolution of accel/decel time (Pr.01-09 to 01-18).

 A high resolution decreases the accel/decel time range as shown in the following chart.

01-23 Accel/Decel time unit Accel/Decel time range

00 1 Sec 1~36000 Sec

01 0.1 Sec 0.1~3600.0 Sec

02 0.01 Sec 0.01~360.00 Sec