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Cooling System Types For Inverter Enclosure - Mitsubishi Electric 800 Series Hardware Instruction Manual

Separated converter type.
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 Installing the heat sink outside the enclosure
When the heat sink is installed outside the enclosure, the amount of heat generated by the inverter unit and the converter unit
is shown in the following tables. (For the details on protruding the heat sink outside the enclosure, refer to
Converter FR-CC2-
Heat sink section
H[]
(outside of enclosure)
315K
1640
355K
1820
400K
2130
450K
2380
500K
2660
560K
3080
630K
3440
Inverter FR-A842-[]
SLD
315K
4060
355K
4680
400K
5160
450K
6020
500K
6860
NOTE
• * The amount of heat generated shown assumes that the output current is the inverter rated current, and the carrier frequency
is 2 kHz.
2.3.3

Cooling system types for inverter enclosure

From the enclosure that contains the inverter, the heat of the inverter and other equipment (transformers, lamps, resistors, etc.)
and the incoming heat such as direct sunlight must be dissipated to keep the in-enclosure temperature lower than the
permissible temperatures of the in-enclosure equipment including the inverter.
The cooling systems are classified as follows in terms of the cooling calculation method.
• Cooling by natural heat dissipation from the enclosure surface (totally enclosed type)
• Cooling by heat sink (aluminum fin, etc.)
• Cooling by ventilation (forced ventilation type, pipe ventilation type)
• Cooling by heat exchanger or cooler (heat pipe, cooler, etc.)
Amount of heat generated (W)
Control section (inside of
enclosure)
710
780
920
1020
1140
1320
1480
Heat sink section (outside of enclosure)
LD
ND
3530
3110
4060
3570
4530
3950
5140
4550
6040
5180
Amount of heat generated (W)
Control section (inside of enclosure)
HD
SLD
2730
1740
1520
3080
2010
1740
3450
2210
1950
3950
2580
2200
4540
2950
2590
2.3 Installation of the inverter and enclosure design
page
30.)
LD
ND
HD
1340
1170
1530
1330
1700
1480
1950
1700
2220
1950
2. INSTALLATION AND WIRING
1
2
3
4
5
6
7
8
9
10
27

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