• Be sure to attach the inverter surface cover before turning the power ON. Do not remove the surface cover
while the power is ON.
• Do not operate the unit with wet hands.
Failure to observe this could result in electric shock.
• If the product stops after being tripped when the retry function is selected, depending on the cause of the
trip, the product will restart automatically, and the motor will rotate. Design the machinery so that human
body and peripheral equipment safety is ensured even when the auto-resetting succeeds. Design machines
in such a way as to ensure the safety of the human body and surrounding area even when operation is
resumed.
• There may be times when the stall prevention function (torque limiting) causes the product to run at an
acceleration/deceleration time or speed different from the set values. Design machines in such a way that
safety is ensured even at such times.
Failure to observe this could result in an accident.
• The keypad key is enabled only when keypad operation is selected with function code F02. Please
prepare a separate EMERGENCY STOP button. When function code H96 has been set to “0” or “2”, the
key will be disabled if the operation command method is changed from operation command with the keypad
by selecting link operation "LE".
• If any of the protective functions has been activated, first remove the cause. Then, after checking that all
run commands are set to OFF, release the alarm. If the alarm is released while any run command is set to
ON, the inverter may supply the power to the motor, running the motor.
Failure to observe this could result in an accident.
• By selecting the momentary power failure resume operation (F14 = 3 to 5), operation will resume
automatically following recovery. Design machines in such a way as to ensure operator safety even when
operation is resumed.
• Set function codes after ensuring a sufficient understanding of this User's Manual. If operation is performed
after recklessly changing function code data, the motor may rotate at a torque and speed at which the
machine is unable to tolerate.
• When auto tuning is started, the motor rotates. Conduct a sufficient check to ensure that there is no danger
even when the motor rotates.
Failure to observe this could result in an accident or injury.
• Even if the inverter cuts off the supply of power to the motor, if voltage is being applied to main power
supply input terminals L1/R, L2/S, and L3/T, voltage may be output to inverter output terminals U, V and W.
• Even if the motor is stopped by DC braking operation or pre-excitation operation, voltage will be output to
the inverter output U, V and W terminals.
Failure to observe this could result in electric shock.
• Inverter high-speed operation settings can be specified easily. If settings are changed, use the product after
sufficiently checking the motor and machine specification.
Failure to observe this could result in injury.
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