Delta Electronics VFD-G manual Unit 0.1sec

Chapter 4 Parameters
01 - 19	JOG Frequency		Unit: 0.1sec
	Settings	0.0 Hz~160.00 Hz	Factory Setting: 6.00

When the JOG function is to be utilized, users need to use the multi-function input terminals (Pr. 04-00 to 04-03 set to 07) or the JOG key on keypad. Once a JOG command is initiated, the AC drive will accelerate from the Minimum Output Frequency (Pr.01-05) to the JOG frequency (Pr.01-19).

The accel/decel time of the JOG operation is determined by the JOG accel/decel speed (Pr.01-17 and 01-18).

When the drive is in operation, the JOG command is disabled.

01 - 20 S Curve Delay Time in Accel

01 - 21 S Curve Delay Time in Decel

Settings 0.00~2.50secFactory Setting: 0.00 These parameters enable the S curve. The longer the S curve time period the smoother the transition between speeds.

01 - 22	Modulation Index		Unit: 0.1
	Settings	0.90~1.20	Factory Setting: 1.00

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).

4-30 Revision July 2008, EG03, SW V1.06