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• Ensure that the number of input phases and the rated voltage of the product match the number of
phases and the voltage of the AC power supply to which the product is to be connected.
Otherwise, a fire or an accident could occur.
• Do not connect the power supply wires to the inverter output terminals (U, V, and W) or (U0, V0, and
W0).
Doing so could cause fire or an accident.
• In general, sheaths of the control signal wires are not specifically designed to withstand a high voltage
(i.e., reinforced insulation is not applied). Therefore, if a control signal wire comes into direct contact
with a live conductor of the main circuit, the insulation of the sheath might break down, which would
expose the signal wire to a high voltage of the main circuit. Make sure that the control signal wires will
not come into contact with live conductors of the main circuit.
Doing so could cause an accident or an electric shock.
• Before changing the switches, turn OFF the power and wait at least 10 minutes. Make sure that the
charging lamp is turned OFF. Further, make sure, using a multimeter or a similar instrument, that the DC
link bus voltage between the terminals P(+) and N(-) has dropped to the safe level (+25 VDC or below).
Otherwise, an electric shock could occur.
• The inverter, motor and wiring generate electric noise. Be careful about malfunction of the nearby
sensors and devices. To prevent them from malfunctioning, implement noise control measures.
Otherwise an accident could occur.
• Be sure to perform protective grounding.
Otherwise, an accident or an electric shock could occur.
Operation
• Be sure to mount the front cover before turning the power ON. Do not remove the cover when the
inverter power is ON.
Otherwise, an electric shock could occur.
• Do not operate switches with wet hands.
Doing so could cause electric shock.
• If the auto-reset function has been selected, the inverter may automatically restart and drive the motor
depending on the cause of tripping. Design the machinery or equipment so that human safety is
ensured at the time of restarting.
Otherwise, an accident could occur.
• If any of the protective functions have been activated, first remove the cause. Then, after checking that
all the run commands are set to OFF, release the alarm. If the alarm is released while any run
commands are set to ON, the inverter may supply the power to the motor, running the motor.
Otherwise, an accident could occur.
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