Cooling by ventilation (forced ventilation type, pipe ventilation type) Cooling by heat exchanger or cooler (heat pipe, cooler, etc.) 1 2 3 4 5 6 7 8 2.3.4 Inverter installation 9 Inverter placement 10 Fix six positions for the FR-A840-04320(160K) or higher. Install the inverter on a strong surface securely with screws. Leave enough clearances and take cooling measures. Avoid places where the inverter is subjected to direct sunlight, high temperature and high humidity. Install the inverter on a nonflammable wall surface. When encasing multiple inverters in an enclosure, install them in parallel as a cooling measure.
For heat dissipation and maintenance, keep clearance between the inverter and the other devices or enclosure surface. The space below the inverter is required for wiring, and the space above the inverter is required for heat dissipation. When designing or building an enclosure for the inverter, carefully consider influencing factors such as heat generation of the contained devices and the operating environment. 43 2.
INSTALLATION AND WIRING 2.3 Installation of the inverter and enclosure design Cooling system Enclosure structure Comment Nat typ Natural Nat enc ural ventilation (enclosed e / open type) INV This system is low in cost and generally used, but the enclosure size increases as the inverter capacity increases. This system is for relatively small capacities. ural ventilation (totally losed type) INV Being a totally enclosed type, this system is the most appropriate for hostile environment having dust, dirt, oil mist, etc. The enclosure size increases depending on the inverter capacity.
He For Forced air He at sink cooling Heat sink INV This system has restrictions on the heat sink mounting position and area. This system is for relatively small capacities. ced ventilation INV This system is for general indoor installation. This is appropriate for enclosure downsizing and cost reduction, and often used. at pipe Heat pipe INV This system is a totally enclosed type, and is appropriate for enclosure downsizing.