E6581158
A-26
1
Q
Calorific values of the inverter and the required ventilation
About 5% of the rated power of the inverter will be lost as a result of conversion from AC to DC or from DC to
AC. In order to suppress the rise in temperature inside the cabinet when this loss becomes heat loss, the
interior of the cabinet must be ventilated and cooled.
The amount of forcible air-cooling ventilation required and the necessary heat discharge surface quantity
when operating in a sealed cabinet according to motor capacity are as follows.
Calorific Values
Voltage class
Operating motor
capacity
（
kW
）
Inverter type
Carrier
frequency
4kHz
Carrier
frequency
12kHz
Amount of forcible air
cooling ventilation re-
quired (m
3
/min)
Heat discharge surface
area required for sealed
storage cabinet(m
2
)
0.2
2002PL
23
29
0.23
0.8
0.4
2004PL
47
60
0.29
1.0
0.75
2007PL
74
88
0.40
1.4
1.5
2015PL
142
169
0.60
2.1
Single-phase
200V class
2.2
VFS11S-
2022PL
239
270
0.80
2.8
0.2
2002PM
21
26
0.23
0.8
0.4
2004PM
43
54
0.29
1.0
0.55
2005PM
50
54
0.32
1.1
0.75
2007PM
67
79
0.40
1.4
1.5
2015PM
131
150
0.60
2.1
2.2
2022PM
168
195
0.80
2.8
3.7
2037PM
330
374
1.2
4.3
5.5
2055PM
450
510
1.7
6.1
7.5
2075PM
576
635
2.3
8.1
11
2110PM
750
820
3.4
12.0
Single-Phase
200V class
15
VFS11-
2150PM
942
1035
4.6
16.0
0.4
4004PL
30
42
0.32
1.1
0.75
4007PL
44
57
0.40
1.4
1.5
4015PL
77
99
0.60
2.1
2.2
4022PL
103
134
0.80
2.8
3.7
4037PL
189
240
1.2
4.3
5.5
4055PL
264
354
1.7
6.1
7.5
4075PL
358
477
2.3
8.1
11
4110PL
490
650
3.4
12.0
Three-Phase
400V class
15
VFS11-
4150PL
602
808
4.6
16.0
Notes
1)
The heat loss for the optional external devices (input reactor, DC reactor, radio noise reduction filters,
etc.) is not included in the calorific values in the table
2)
Case of 100% Load Continuation operation.
Q
Panel designing taking into consideration the effects of noise
The inverter generates high frequency noise. When designing the control panel setup, consideration must be
given to that noise. Examples of measures are given below.
•
Wire so that the main circuit wires and the control circuit wires are separated. Do not place them in the
same conduit, do not run them parallel, and do not bundle them.
•
Provide shielding and twisted wire for control circuit wiring.
•
Separate the input (power) and output (motor) wires of the main circuit. Do not place them in the same
conduit, do not run them parallel, and do not bundle them.
•
Ground the inverter ground terminals (
).
•
Install surge suppressor on any magnetic contactor and relay coils used around the inverter.
•
Install noise filters if necessary.
