Installing the Inverter
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2.2 Cable connections
Open the front cover and connect the ground cable. Connect appropriately rated
cables to the power and control terminal blocks.
Read the following information carefully before making cable connections. All
warning instructions must be followed.
•
All cables must be installed by certified technicians.
•
Do not modify cable connections or install/uninstall optional add-on modules
while the inverter is operating.
•
Mount the inverter before connecting cables. Before installation, ensure that
the inverter is not connected to a power source.
•
Use cables of specified ratings or higher and run the cables according to the
recommended cable length. Using inferior cables may result in fire or electric
shock.
•
Ensure no metal debris, such as wire offcuts, remain inside the inverter. Metal
debris in the inverter may cause inverter failure.
•
Tighten terminal screws to their specified torque. Loose terminal screws may
result in cable disconnection, cause a short circuit, or inverter failure. For
more details, refer to page
•
Do not place heavy objects on top of electric cables. Heavy objects may
damage the cable and result in electric shock.
•
Install a reactor if the input voltage to the inverter produces imbalance
between the phases. High frequency emission from the inverter’s power
source may overheat and damage phase advance capacitors or alternators.
•
Use mains power cables with sufficient cross-sectional area to prevent
voltage drop exceeding 2%.
