Safety precautions
Read this manual thoroughly before proceeding with installation, connections (wiring), operation, or
maintenance and inspection. Ensure you have sound knowledge of the device and familiarize
yourself with all safety information and precautions before proceeding to operate the inverter.
Safety precautions are classified into the following two categories in this manual.
Failure to heed the information indicated by this
symbol may lead to dangerous conditions, possibly
resulting in minor or light bodily injuries and/or
substantial property damage.
Failure to heed the information contained under the CAUTION title can also result in serious con-
sequences. These safety precautions are of utmost importance and must be observed at all times.
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 acceleration
/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) is established
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.