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Index to Warnings and Cautions in This Manual 3
Wiring - Cautions for Electrical Practice
!Caution Fasten the screws with the specified fastening torque in the table provided.
Check for any loose screws. Otherwise, there is danger of fire.................... 38
!Caution Be sure that the input voltage matches the inverter specifications;
• Single phase 200V to 240V 50/60Hz (up to 2.2kW) for “AB” model
• Three phase 200V to 240V 50/60Hz (up to 15kW) for “A2” model
• Three phase 380V to 480V 50/60Hz (up to 15kW) for “A4” model ....... 41
!Caution Be sure not to power a three-phase-only inverter with single phase power.
Otherwise, there is the possibility of damage to the inverter and the danger of
fire. 41
!Caution Be sure not to connect an AC power supply to the output terminals. Other-
wise, there is the possibility of damage to the inverter and the danger of injury
and/or fire. ................................................................................................... 42
!Caution Be sure to use a specified type of braking resistor/regenerative braking unit. In
case of a braking resistor, install a thermal relay that monitors the temperature
of the resistor. Not doing so might result in a moderate burn due to the heat
generated in the braking resistor/regenerative braking unit.
Configure a sequence that enables the inverter power to turn off when
unusual overheating is detected in the braking resistor/regenerative braking
unit.
Transporting and Installation
• Do not drop or apply strong impact on the product. Doing so may result in
damaged parts or malfunction.
• Do not hold by the terminal block cover, but hold by the fins during trans-
portation.
• Do not connect any load other than a three-phase inductive motor to the
U, V and W output terminals.
Power Input
Output to Motor
MX2 Inverter
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