Hitachi WJ200 Series User Manual

viii
Warnings for Configuring Drive Parameters
WARNING: When parameter b012, level of electronic thermal setting, is set to
motor FLA rating (Full Load Ampere nameplate rating), the inverter provides solid
state motor overload protection at 115% of motor FLA or equivalent. If parameter
B012 exceeds the motor FLA rating, the motor may overheat and damaged.
Parameter B012, level of electronic thermal setting, is a variable parameter.
… 3-34
Cautions for Configuring Drive Parameters
CAUTION: Be careful to avoid specifying a braking time that is long enough to
cause motor overheating. If you use DC braking, we recommend using a motor
with a built-in thermistor, and wiring it to the inverter’s thermistor input (see
“Thermistor Thermal Protection” on page 4-24). Also refer to the motor
manufacturer’s specifications for duty-cycle recommendations during DC braking.
… 3-19
HIGH VOLTAGE: When set RDY function ON, there will be a voltage appear at
motor output terminals U, V and W even if the motor is in stop mode. So never
touch the inverter power terminal even the motor is not running.
… 3-47
CAUTION: Do not change Debug mode for safety reasons. Otherwise unexpected
performances may occur.
… 3-62
Warnings for Operations and Monitoring
WARNING: Be sure to turn ON the input power supply only after closing the front
case. While the inverter is energized, be sure not to open the front case. Otherwise,
there is the danger of electric shock.
… 4-3
WARNING: Be sure not to operate electrical equipment with wet hands.
Otherwise, there is the danger of electric shock.
… 4-3
WARNING: While the inverter is energized, be sure not to touch the inverter
terminals even when the motor is stopped. Otherwise, there is the danger of
electric shock.
… 4-3
WARNING: If the retry mode is selected, the motor may suddenly restart after a
trip stop. Be sure to stop the inverter before approaching the machine (be sure to
design the machine so that safety for personnel is secure even if it restarts.)
Otherwise, it may cause injury to personnel.
… 4-3
WARNING: If the power supply is cut OFF for a short period of time, the inverter
may restart operating after the power supply recovers if the Run command is
active. If a restart may pose danger to personnel, so be sure to use a lock-out
circuit so that it will not restart after power recovery. Otherwise, it may cause
injury to personnel.
… 4-3
WARNING: The Stop Key is effective only when the stop function is enabled. Be
sure to enable the Stop Key separately from the emergency stop. Otherwise, it may
cause injury to personnel.
… 4-3
WARNING: During a trip event, if the alarm reset is applied and the Run
command is present, the inverter will automatically restart. Be sure to apply the
alarm reset only after verifying the Run command is OFF. Otherwise, it may cause
injury to personnel.
… 4-3

Hitachi WJ200 Series Specifications

General

Series	WJ200
Output Frequency	0.1 to 400 Hz
Control Method	V/f Control, Sensorless Vector Control
Overload Capacity	150% for 60 seconds
Enclosure	IP20
Communication	RS-485 (Modbus RTU)
Input Voltage	200-240V AC, 380-480V AC
Ambient Temperature	-10 to +50°C
Storage Temperature	-20 to +60°C
Humidity	5 to 95% RH (non-condensing)
Cooling Method	Fan cooled
Braking Unit	Built-in
Protection Functions	Overcurrent, Overvoltage, Undervoltage, Overheat, Ground Fault
Analog Inputs	2
Analog Outputs	1