Amount Of Heat Generated By The Inverter; Cooling System Types For Inverter Enclosure - Mitsubishi Electric 800 Series Instruction Manual

 Countermeasure
• Provide the enclosure with rubber vibration isolators.
• Strengthen the structure to prevent the enclosure from resonance.
• Install the enclosure away from the sources of the vibration.
2.3.2

Amount of heat generated by the inverter

When the heat sink is installed, the amount of heat generated by the inverter unit is shown in the following table.
Voltage Inverter model
FR-E820-0008(0.1K)
FR-E820-0015(0.2K)
FR-E820-0030(0.4K)
FR-E820-0050(0.75K)
Three-
phase 200 V FR-E820-0080(1.5K)
class
FR-E820-0110(2.2K)
FR-E820-0175(3.7K)
FR-E820-0240(5.5K)
FR-E820-0330(7.5K)
FR-E840-0016(0.4K)
FR-E840-0026(0.75K)
FR-E840-0040(1.5K)
Three-
phase 400 V FR-E840-0060(2.2K)
class
FR-E840-0095(3.7K)
FR-E840-0120(5.5K)
FR-E840-0170(7.5K)
FR-E820S-0008(0.1K)
FR-E820S-0015(0.2K)
Single-
FR-E820S-0030(0.4K)
phase 200 V
FR-E820S-0050(0.75K)
class
FR-E820S-0080(1.5K)
FR-E820S-0110(2.2K)
NOTE
• The amount of heat generated shown assumes that the output current is inverter rated current, power supply voltage is 220 V
(200 V class) or 440 V (400 V class), and 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)
Amount of heat generated (W)
Standard model
LD ND
16 11
21 16
35 29
61 48
91 74
107 91
177 153
251 191
317 249
33 25
55 38
84 58
88 75
136 112
223 136
299 197
— 11
— 17
— 32
— 49
— 80
— 95
Ethernet model / Safety
communication model
LD ND
17 12
22 17
36 30
62 49
92 75
108 92
178 154
252 192
318 250
34 26
56 39
85 59
89 76
137 113
224 137
300 198
— 12
— 18
— 33
— 50
— 81
— 96
2. Installation and Wiring
2.3 Installation of the inverter and enclosure design
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