Omron RX Series User Manual page 62

2 Design
Loss according to the Inverter Capacity
For the calculation of heat radiation from a cabinet, the following table shows the amount of heat
generation (loss) according to the inverter capacity.
Voltage
Capacity
Loss at 70%
[kW]
load [W]
0.4
0.75
1.5
2.2
3.7
5.5
7.5
11
15
18.5
22
30 1,100
37 1,345
45 1,625
55 1,975
75 2,675
90 3,375
110 3,900
132 4,670
Derating of Rated Output Current
The table below shows the derating specifications for the rated output current of the 3G3RX-V1 Series
Inverter.
Make sure that you use the correct data. The derating value differs between the heavy load mode and
the light load mode.
• Necessity of derating (Yes/No): Shows whether derating is necessary.
• Max. carrier frequency fc:
• Derating at fc = ** kHz:
2 - 6
Heavy load
Loss at 100%
load [W]
64 70
76 88
102 125
127 160
179 235
242 325
312 425
435 600
575 800
698 975
820 1,150
1,550
1,900
2,300
2,800
3,800
4,800
5,550
6,650
Shows the maximum carrier frequency for which derating is not
necessary.
Shows the rated output current reduction rate when the carrier
frequency is set to ** Hz.
High-function General-purpose Inverter 3G3RX-V1 User's Manual (I578-E1)
200-V class/400-V class
Efficiency at Loss at 70%
rated output [%] load [W]
85.1 76
89.5 102
92.3 127
93.2 179
94.0 242
94.4 312
94.6 435
94.8 575
94.9 698
95.0 820
95.0 1,100
95.0 1,345
95.1 1,625
95.1 1,975
95.1 2,675
95.2 3,375
95.2 3,900
95.2 4,670
95.2 5,660
Light load
Loss at 100% Efficiency at
load [W] rated output [%]
88 89.5
125 92.3
160 93.2
235 94.0
325 94.4
425 94.6
600 94.8
800 94.9
975 95.0
1,150 95.0
1,550 95.0
1,900 95.1
2,300 95.1
2,800 95.1
3,800 95.2
4,800 95.2
5,550 95.2
6,650 95.2
8,060 95.2