Chapter 5 Parameters|VFD-B Series

08 - 15 Automatic Energy-saving

Settings

00

01

Output

Voltage

100%

Energy-saving operation disabled

Energy-saving operation enabled

Factory Setting: 00

70%

During auto-energy saving

operation, the output

voltage is lowered as much

as possible while maintaining

the load. Maximum output voltage

is 70% of the normal output voltage.

Output Frequency

08 - 16 Automatic Voltage Regulation (AVR)

Settings

00 AVR function enabled

01 AVR function disabled

02 AVR function disabled for deceleration

Factory Setting: 00

The rated voltage of the motor is usually 200V/230VAC 50Hz/60Hz and the input voltage of

the AC motor drive may vary between 180V to 264 VAC 50Hz/60Hz. Therefore, when the AC

motor drive is used without AVR function, the output voltage will be the same as the input

voltage. When the motor runs at voltages exceeding the rated voltage with 12% - 20%, its

lifetime will be shorter and it can be damaged due to higher temperature, failing insulation and

unstable torque output.

AVR function automatically regulates the AC motor drive output voltage to the Maximum

Output Voltage (Pr.01-02). For instance, if Pr.01-02 is set at 200 VAC and the input voltage is

at 200V to 264VAC, then the Maximum Output Voltage will automatically be reduced to a

maximum of 200 VAC.

When motor stops with deceleration, it will shorten deceleration time. When setting this

parameter to 02 with auto acceleration/deceleration, it will offer a quicker deceleration.

5-78

Revision July 2008, BE16, SW V4.08 & V5.00