Delta Electronics VFD-G manual 100% 70%, Automatic Energy-saving Operation, Settings

Chapter 4 Parameters

Output voltage

100%

70%

			During the auto energy-saving
			operation, it will adjust the output
			voltage according to the output
			power. The maximum output
			voltage can be 30% lower than
			the normal output voltage.
			Frequency
			Automatic Energy-saving Operation
08 - 18	Automatic Voltage Regulation (AVR)
				Factory Setting: 00
	Settings	00: AVR function enabled
		01: AVR function disabled
		02: AVR function disabled for deceleration

This parameter determines the function of Automatic Voltage Regulation is enabled or disabled.

This parameter is set to 01: when AVR function is disabled, AC drive will calculate input voltage by DC Bus value (620VDC). Output voltage will vary by DC Bus varying and may cause output current insufficiently, over current or oscillation.

This parameter is set to 00: when AVR function is enabled, AC drive will calculate output voltage by actual voltage value of DC Bus. Output voltage won’t vary by DC Bus varying.

This parameter is set to 02: AC drive will disable AVR function during decelerate to stop. It can speed up braking in some degree.

08 - 19	Software Setting of the Braking Level		Unit: 0.1
	(the action level of the braking resistor)
	Settings	740.0V~820.0VDC	Factory Setting: 760.0
		00: Disabled

This parameter determines software setting of the braking level.

The model VFD055~150F43A has braking chip, user could select suitable braking resistor to have the best deceleration characteristics.

The action level of the braking resistor could be set by this parameter.

Revision July 2008, EG03, SW V1.06 4-67