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2 Design
High-function General-purpose Inverter 3G3RX-V1 User’s Manual (I578-E1)
2-1 Installation
2
2-1-2 Installation Environment
Keep the inverter clear of heating elements such as a braking resistor or reactor.
If the inverter is installed in a control panel, take into consideration dimensions and ventilation to keep
the ambient temperature within the range of the specifications.
To allow heat dispersion from inside the inverter, provide the clearance specified in the figure below
during installation.
Do not install more than one inverter side by side without clearance.
To ensure reliable operation, use the inverter in an environment subject to minimal temperature rise as
much as possible.
If you install a ventilation fan in a control panel where several inverters are installed, be careful about
the layout of the inverters and the air intake and ventilation apertures.
Remember that poor air circulation around inverters causes an internal temperature rise, which may
inversely affect the internal components of the inverters.
Place a cover over the inverter or take other preventative measures to prevent foreign objects, such as
drill filings, from entering the inverter during installation.
Be sure to remove the cover after installation is complete. Using the inverter with the cover placed
results in poor ventilation, which causes the inverter to overheat.
Installation Conditions
Ambient Temperature Control
Entry of Foreign Objects during Installation
Inverter
Inverter
5 cm min. 5 cm min.
*1
Airflow
*2
Wall
*1 10 cm min.
*2 10 cm min.
Note that replacing the smoothing
capacitor requires 22 cm or more.
Save enough space to prevent the
upper and lower wiring ducts from
blocking cooling airflow.
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