Danfoss VLT Refrigeration Drive FC 103 Design Manual page 105

Special Conditions
Enclosure Sizes C, T6
60° AVM – pulse width modulation
l (%)
out
NO
110%
100%
90%
80%
60%
40%
20%
0
0 1 2 4
Illustration 5.18 Output Current Derating with Switching
Frequency and Ambient Temperature for 600 V Frequency
Converters, Enclosure Sizes C, 60 AVM, NO
SFAVM – stator frequency asynchron vector modulation
l (%)
out
NO
110%
100%
90%
80%
60%
o
45 C
o
50 C
40%
20%
0
0 1 2 4
Illustration 5.19 Output Current Derating with Switching
Frequency and Ambient Temperature for 600 V Frequency
Converters, Enclosure Sizes C; SFAVM, NO
Enclosure Size C, T7
60° AVM – pulse width modulation
I out (A)
34
28.9
27.2
20.4
13.6
1 2 4
Illustration 5.20 Output Current Derating with Switching
Frequency and Ambient Temperature for Enclosure Size C2,
60° AVM.
MG16G202
Design Guide
C1 & C2
o
45 C
o
50 C
f
(kHz)
sw
6 8 10
C1 & C2
f
(kHz)
sw
6 8 10
C2 all options
45°C
50°C
55°C
f sw (kHz)
6 8 10
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SFAVM – stator frequency asynchron vector modulation
I (A)
out
100
86.6
80
66.6
60
45°C
40
50°C
20
55°C
1 2 4 6
Illustration 5.21 Output Current Derating with Switching
Frequency and Ambient Temperature for Enclosure Size C2,
SFAVM.
I out (%)
110%
100%
80%
60%
40%
20%
0
0 2 4 6 8
Illustration 5.22 Output Current Derating with Switching
Frequency and Ambient Temperature for Enclosure Size C3
C2 all options
f (kHz)
sw
8 10
I at T max
LOAD AMB
I at T max +5 °C
LOAD AMB
I at T max +5 °C
LOAD AMB
f sw (kHz)
10
103
5 5