User's Manual

VFD-F Series
DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED
5-44
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 Brake Level
(the action level of the brake resistor)
a
Factory Setting: 380.0/
760.0
Settings
230V series: 370.0 ~ 410.0VDC
460V series: 740.0 ~ 820.0VDC
00: Disable
Unit: 0.1
 This parameter determines software setting of the brake level.
 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
a
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.