Install the inverter on a non-flammable material such as metallic wall. Also, do not place
flammable object nearby.
Doing so may result in fire.
Be sure to perform wiring after installing the inverter unit. Also, tighten terminals with
specified torque.
Not doing so may result in injury, electric shock or fire.
Ensure that the specifications of the input power of the product match the power supply to
which the product is to be connected.
Not doing so may result in fire or accidents.
Be sure to use the wire of specified size.
Not doing so may result in fire.
When wiring each inverter to the power supply, install a molded-case circuit breaker or
earth leakage circuit breaker (with overcurrent protection function). Use recommended
moldedcase circuit breakers or earth leakage circuit breakers that do not exceed the
recommended current capacity.
Not doing so may result in fire.
If no suitable equipment to detect leakage is installed in the upstream power supply line, in
order to avoid the entire power supply system's shutdown due to operation of devices such
as earth leakage circuit breaker as this is undesirable to operation, install an earth leakage
circuit breaker individually to inverters to break the individual inverter power supply lines
only.
Not doing so may result in fire.
When the capacity of the power transformer is 500 kVA or more and 10 times or more than
the rated capacity of the inverter, ensure that a DC reactor is connected.
Not doing so may result in fire.
Never connect the power lines to the inverter output terminals U, V, or W.
Doing so may result in fire.
When connecting a braking resistor, do not connect it to any terminal other than terminals
P(+) and DB.
Doing so may result in fire or accident.
Do not bundle multiple cables as one cable.
Doing so may result in fire.
Do not connect a surge suppressor to the output lines of the inverter.
Doing so may result in fire.
In general, sheaths of the control signal wires do not use reinforced insulation, therefore if
a control signal wire comes into direct contact with a live part of the main circuit, the
insulation of the sheath might break down. In these cases, there is a danger of the control
signal wire being exposed to high voltage from the main circuit, therefore ensure that the
control signal wires will not come into contact with live parts of the main circuit.
Not doing so may result in electric shock or accidents.
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