Arrangement of the ventilation fan and inverter Heat generated in the inverter is blown up from the bottom of the unit as warm air by the cooling fan. When installing a 1 ventilation fan for that heat, determine the place of ventilation fan installation after fully considering an air flow. (Air passes through areas of low resistance. Make an airway and airflow plates to expose the inverter to cool air.) 2 3 Inverter 4 5 Arrangement of the ventilation fan and inverter 6 2.3.5 Protruding the heat sink through a panel When encasing the inverter to an enclosure, the heat generated in the enclosure can be greatly reduced by protruding the heat 7 sink of the inverter.
When installing the inverter in a compact enclosure, etc., this installation method is recommended. When using the panel through attachment (FR-A8CN) For the FR-A820-00105(1.5K) to 04750(90K) and the FR-A840-00023(0.4K) to 03610(132K), a heat sink can be protruded 8 outside the enclosure using a panel through attachment (FR-A8CN). (For the FR-A840-04320(160K) or higher, the attachment is not necessary when the heat sink is to be protruded.) For a panel cut dimension drawing and an installation procedure of the panel through attachment (FR-A8CN) to the inverter, 9 refer to a manual of FR-A8CN.
Protrusion of heat sink for the FR-A840-04320(160K) or higher 10 Panel cutting Cut the panel of the enclosure according to the inverter capacity. 45 2. INSTALLATION AND WIRING 2.3 Installation of the inverter and enclosure design Inverter FR-A840-04320(160K) FR-A840-04810(185K) 6-M10 screw 484 200 200 13 Hole 985 954 （Unit：mm） 18 FR-A840-05470(220K) FR-A840-06100(250K) FR-A840-06830(280K) 6-M10 screw 662 300 300 15 Hole 984 954 （Unit：mm） 15 200 200 954 Hole 300 300 954 Hole