Delta Electronics VFD-F Series manual Unit, 5-44

Factory Setting: 00

VFD-F Series

08 - 18 Automatic Voltage Regulation (AVR)

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.

Software Setting of the Brake Level 08 - 19 (the action level of the brake resistor)

Settings 230V series: 370.0 ~ 410.0VDC 460V series: 740.0 ~ 820.0VDC

00: Disable

This parameter determines software setting of the brake level.

Factory Setting: 380.0/ 760.0

Unit: 0.1

The model VFD007~150F43A has brake chip, user could select suitable brake resistor to have the best deceleration characteristics.

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

08 - 20	Vibration Compensation Factor		Factory Setting:	00
	Settings	00~1000	Unit:	1

This parameter will minimize vibration at low speed during vector control. The value of the parameter is a GAIN. The higher the value, the more vibration dampening that will occur.

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