Delta Electronics VFD-VL manual 01-04, 01-05, 01-06, 01-07, 01-08

Chapter 4 Parameters
	01-04	2nd Output Voltage Setting			Unit: 0.1
	Control	VF	VFPG
	mode
		Settings	230V series	0.1 to 255.0V	Factory Setting: 5.0
			460V series	0.1 to 510.0V	Factory Setting: 10.0
	01-05	3rd Output Frequency Setting			Unit: 0.01
	Control	VF	VFPG		Factory setting: 0.50
	mode
		Settings	0.00~120.00Hz
	01-06	3rd Output Voltage Setting			Unit: 0.1
	Control	VF	VFPG
	mode
		Settings	230V series	0.1 to 255.0V	Factory Setting: 5.0
			460V series	0.1 to 510.0V	Factory Setting: 10.0
	01-07	4th Output Frequency Setting			Unit: 0.01
	Control	VF	VFPG SVC FOCPG TQCPG
	mode
		Settings	0.00~120.00Hz		Factory Setting: 0.00
01-08		4th Output Voltage Setting			Unit: 0.1
	Control	VF	VFPG
	mode
		Settings	230V series	0.1 to 255.0V	Factory Setting: 0.0
			460V series	0.1 to 510.0V	Factory Setting: 0.0

V/f curve setting is usually set by the motor’s allowable loading characteristics. Pay special attention to the motor’s heat dissipation, dynamic balance, and bearing lubricity, if the loading characteristics exceed the loading limit of the motor.

For the V/f curve setting, it should be Pr.01-01≥Pr.01-03≥Pr.01-05≥Pr.01-07. There is no limit for the voltage setting, but a high voltage at the low frequency may cause motor damage, overheat, stall prevention or over-current protection. Therefore, please use the low voltage at the low frequency to prevent motor damage.

4-30 Revision Nov. 2008, VLE1, SW V1.03