Hitachi WJ200 Series

2−31
3. Set the Motor Base Frequency and AVR voltage of the motor – The motor is
designed to operate at a specific AC frequency. Most commercial motors are designed
for 50/60 Hz operation. First, check the motor specifications. Then follow the steps
below to verify the setting or correct it for your motor. DO NOT set it greater than
50/60 Hz unless the motor manufacturer specifically approves operation at the higher
frequency.
Action Display Func./Parameter
(Starting point)
A002
Run command source setting
Press the U key once.
A003
Base frequency setting
Press the SET key.
60.0.
or
50.0
Default value for the base frequency.
US = 60 Hz, Europe = 50 Hz
Press the U / V key to select
60.0
Set to your motor specs (your display
may be different)
Press the SET key.
A003
Store parameter, returns to “A003”
CAUTION: If you operate a motor at a frequency higher than the inverter standard
default setting (50Hz/60Hz), be sure to check the motor and machine specifications
with the respective manufacturer. Only operate the motor at elevated frequencies after
getting their approval. Otherwise, there is the danger of equipment damage.
Set the AVR Voltage Setting – The inverter has an Automatic Voltage Regulation (AVR)
function. It adjusts the output voltage to match the motor’s nameplate voltage rating.
The AVR smoothes out fluctuation in the input power source, but note that it does not
boost the voltage in the event of a brown-out. Use the AVR setting (A082) that most
closely matches the one for your motor.
• 200V class: 200 / 215 / 220 / 230 / 240 VAC
• 400V class: 380 / 400 / 415 / 440 / 460 / 480 VAC
To set the motor voltage, follow the steps on the following table.
Action Display Func./Parameter
(Starting point)
A003
Base frequency setting
Press the U key and hold until Æ
A082
AVR voltage select
Press the SET key.
A230
or
A400
Default value for AVR voltage:
200V class = 230VAC
400V class = 400VAC (HFE)
= 460VAC (HFU)
Press the U / V key to select
A215
Set to your motor specs (your display
may be different)
Press the SET key.
A082
Store parameter, returns to “A082”