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• Generally, control signal wires are not reinforced insulation. If they accidentally touch
any of live parts in the main circuit, their insulation coat may break for any reasons. In
such a case, an extremely high voltage may be applied to the signal lines. Make a
complete remedy to protect the signal line from contacting any hot high voltage lines.
Doing so could cause an accident or electric shock.
• Wire the three-phase motor to terminals U, V, and W of the inverter, aligning phases
each other.
Otherwise injuries could occur.
• The inverter, motor and wiring generate electric noise. Take care of malfunction of the
nearby sensors and devices. To prevent the motor from malfunctioning, implement
noise control measures.
Otherwise an accident could occur.
Operation
• Be sure to install the terminal block cover before turning the power on. Do not remove
the cover while power is applied.
Otherwise electric shock could occur.
• Do not operate switches with wet hands.
Doing so could cause electric shock.
• If the retry 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 after restarting.)
• If the stall prevention function (current limiter), automatic deceleration, and overload
prevention control have been selected, the inverter may operate at an accelera-
tion/deceleration time or frequency different from the set ones. Design the machine so
that safety is ensured even in such cases.
Otherwise an accident could occur.
• The STOP key is only effective when function setting (Function code F02) has been es-
tablished to enable the STOP key. Prepare an emergency stop switch separately. If you
disable the STOP key priority function and enable operation by external commands, you
cannot emergency-stop the inverter using the STOP key on the built-in keypad.
• If an alarm reset is made with the operation signal turned on, a sudden start will occur.
Ensure that the operation signal is turned off in advance.
Otherwise an accident could occur.
