Omron MX2 Series User Manual page 66

2 Design
Ambient Temperature Control
To ensure reliable operation, use the inverter in an environment subject to minimal temperature rise as
much as possible.
If you install a ventilation fan in a control panel where several inverters are installed, be careful about
the layout of the inverters and the air intake and ventilation apertures.
Remember that poor air circulation around inverters causes an internal temperature rise, which may
inversely affect the internal components of the inverters.
Inverter
(Correct example)
Entry of Foreign Objects during Installation
Place a cover over the inverter or take other preventative measures to prevent foreign objects, such as
drill filings, from entering the inverter during installation.
Be sure to remove the cover after installation is complete. Using the inverter with the cover placed
results in poor ventilation, which causes the inverter to overheat.
Loss according to the Inverter Capacity
For the calculation of heat radiation from a cabinet, the following table shows the amount of heat gener-
ation (loss) from the inverter in the heavy load.
Single-phase/3-phase 200-V class
Maximum
Loss at
applicable
0% load of
motor
the rated
capacity
current [W]
[kW]
0.1 10
0.2 10
0.4 10
0.75 12 (10)
1.5 12
2.2 12
3.7 12
5.5 14
7.5 14
11 19
15 19
*1. The value in parentheses ( ) is for single-phase 200-V class inverters.
2 - 6
Ventilation fan
(Incorrect example)
Loss at Efficiency at
100% load of 100% load of
the rated the rated
current [W] current [%]
12 89.5
22 90
30 93
*1
48 94
79 95
104 95.5
154 96
229 96
313 96
458 96
625 96
Multi-function Compact Inverter 3G3MX2-V1 User's Manual (I585-E1)
Ventilation fan
Inverter
3-phase 400-V class
Maximum
Loss at
applicable
0% load of
motor
the rated
capacity
current [W]
[kW]
0.4 10
0.75 10
1.5 12
2.2 12
3.0 12
4.0 12
5.5 14
7.5 14
11 19
15 19
Loss at Efficiency at
100% load of 100% load of
the rated the rated
current [W] current [%]
35 92
56 93
96 94
116 95
125 96
167 96
229 96
296 96.2
411 96.4
528 96.6