Delta Electronics VFD-F Series manual JOG Frequency

Factory Setting: 01

VFD-F Series

01 - 19	JOG Frequency		Factory Setting: 6.00
	Settings	0.0 Hz~120.00 Hz	Unit: 0.1sec

When the JOG function is to be utilized, users need to use the multi-function input terminals (Pr. 04-00 to 04-07 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		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

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.

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