EN-3
Installation
Wiring
Setting of Parameters
• Always hold the case when carrying the Inverter.
If the Inverter is held by the front cover, the main body of the Inverter may fall, possibly resulting in injury.
• Attach the Inverter to a metal or other noncombustible material.
Fire can result if the Inverter is attached to a combustible material.
• Install a cooling fan or other cooling device when installing more than one Inverter in the same enclosure so that the temperature
of the air entering the Inverters is below 45
°
C.
• Overheating can result in fires or other accidents.
• Always turn OFF the input power supply before wiring terminals.
Failure to do so may result in electric shock or fire.
• Wiring must be performed by an authorized person qualified in electrical work.
Doing so may result in electric shock or fire.
• Be sure to ground the ground terminal. (200 V class: Ground to 100
Ω
or less, 400 V class: Ground to 10
Ω
or less)
Failure to do so may result in electric shock or fire.
• Always check the operation of any fast stop circuits after they are wired.
Failure to do so may cause injury. (Wiring is the responsibility of the user.)
• Never touch the output terminals directly with your hands or allow the output lines to come into contact with the Inverter case.
Never short the output circuits.
Doing so may result in electric shock or ground short.
• Do not use the Inverter for any load other than a three-phase AC motor.
• A permanent magnet motor is a type of synchronous motor with a rotor in which a magnet is integrated. Unlike an
induction motor, the permanent magnet motor terminal generates high voltage when the motor is running, even when
the Inverter power is shut off. Be sure to completely stop the motor before wiring, maintenance and inspection.
Failure to do so may result in electric shock
• Wire the Inverter so that the Run command switches off when a Stop command (or Fast stop command) is input to termi-
nal BB or terminal BB1.
If the Run command is not removed, then the motor will begin running as soon as the Stop command (or Fast stop com-
mand) is cleared.
This can result in personal injury.
• Check to be sure that the voltage of the main AC power supply satisfies the rated voltage of the Inverter.
Injury or fire can occur if the voltage is not correct.
• Do not perform voltage withstand tests on the Inverter.
Doing so may cause damage to the semiconductor elements and other devices.
• Connect braking resistors, Braking Resistor Units, and Braking
Units as shown in the I/O wiring examples.
Failure to do so may result in fire.
• Tighten all terminal screws to the specified tightening torque.
Failure to do so may result in fire.
• Do not connect AC power to output terminals U, V, and W.
The interior parts of the Inverter will be damaged if voltage is applied to the output terminals.
• Do not connect phase-advancing capacitors or LC/RC noise filters to the output circuits.
The Inverter can be damaged or internal parts burnt if these devices are connected.
• When a magnetic contactor is connected to the output circuits, do not switch it ON and OFF while the Inverter is running.
Surge current will cause the overcurrent protection circuit inside the Inverter to operate.
• This Inverter can drive an induction motor or a permanent magnet motor. Select a suitable control method (parameter
A1-02) for the motor you drive.
Failure to do so will cause damage to the motor.
• Do not change the factory setting (0) in b1-03 (Run Command source selection).
Doing so can cause the elevator to drop.
• Do not change the factory setting (1) in L8-05 (Input open-phase protection selection).
You can change it to 0, but only after confirming that there are no factors that cause input open phase.
Doing so may damage the Inverter main circuits.
CAUTION
WARNING
CAUTION
WARNING