Delta Electronics VFD-M manual Pr.06, Pr.07, Pr.08, Pr.09

Chapter 4 Parameters

Pr.06	Mid-Point Frequency
	Settings 0.10 to 400.0Hz

Unit: 0.1Hz

Factory Setting: 1.50

The parameter sets the Mid-Point Frequency of V/F curve. With this setting, the V/F ratio

between Minimum Frequency and Mid-Point frequency can be determined. Setting of this parameter must be equal to or greater than Minimum Output Frequency (Pr.08) and equal to or less than Maximum Voltage Frequency (Pr.04).

Pr.07	Mid-Point Voltage
	Settings 115V/230V series	0.1 to 255.0V	Factory Setting: 10.0
	460V series	0.1 to 510.0V	Factory Setting: 20.0
	575V series	0.1 to 637.0V	Factory Setting: 26.1

The parameter sets the Mid-Point Voltage of any V/F curve. With this setting, the V/F ratio

between Minimum Frequency and Mid-Point Frequency can be determined. Setting of this parameter must be equal to or greater than Minimum Output Voltage (Pr.09) and equal to or less than Maximum Output Voltage (Pr.05).

Pr.08	Minimum Output Frequency	Unit: 0.1Hz
	Settings 0.10 to 20.00Hz	Factory Setting: 1.50

The parameter sets the Minimum Output Frequency of the AC drive. Setting of this

parameter must be equal to or less than Mid-Point Frequency (Pr.06).

Pr.09	Minimum Output Voltage
	Settings	115V/230V series	0.1 to 255.0V
		460V series	0.1 to 510.0V
		575V series	0.1 to 637.0V

Factory Setting: 10.0

Factory Setting: 20.0

Factory Setting: 26.1

This parameter sets the Minimum Output Voltage of the AC drive. Setting of this parameter

must be equal to or less than Mid-Point Voltage (Pr.07).

Voltage
Pr.05
Pr.07
Pr.09		Frequency
0	Pr.06	Pr.03
	Pr.08	Pr.04

4-22 Revision May 2008, ME14, SW V3.04