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Design Guide | iC2-Micro Frequency Converters
Table 39: dU/dt Data for iC2-Micro Frequency Converters
Enclosure size
Power [kW (hp)]
MA05a
22 (30)
MA05a
22 (30)
MA05a
22 (30)
MA05a
22 (30)
Derating
4.9
Overview of Derating
4.9.1
Consider derating if the drive is challenged under some special conditions. Derating of the drive includes:
Manual derating.
l
Automatic derating.
l
Manual Derating
4.9.2
Manual derating must be considered for:
Air pressure – for installation at altitudes above 1000 m (3281 ft).
l
Motor speed – at continuous operation at low RPM in constant torque applications.
l
Ambient temperature – above 40 °C (104 °F), for details, see the following figures.
l
120
100
80
60
40
20
0
0
2
4
6
Figure 14: Derating of Output Current Versus Switching Frequency (MA01c 1x100–120 V AC and 1x200–240 V AC)
120
100
80
60
40
20
0
0
2
4
6
Figure 15: Derating of Output Current Versus Switching Frequency (MA02c 1x100–120 V AC and 1x200–240 V AC)
Danfoss A/S © 2024.08
(continued)
Cable length
[m (ft)]
5 (16.4)
50 (164)
5 (16.4)
50 (164)
8
10
12
14
16
f
(kHz)
switch
8
10
12
14
16
f
(kHz)
switch
Mains voltage
Rise time [μ
[V]
3x400
0.108
3x400
0.404
3x480
0.148
3x480
0.404
40 °C (104 °F)
50 °C (122 °F)
55 °C (131 °F)
18
40 °C (104 °F)
50 °C (122 °F)
55 °C (131 °F)
18
]
U
[kV]
dU/dt [kV/μ
sec
PEAK
0.66
4.89
1.02
2.02
0.78
4.26
1.19
2.36
AJ402315027937en-000401 / 130R1239 |
Specifications
]
sec
53
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