Danfoss VLT AutomationDrive FC 302 Design Manual page 144

Mechanical Installation Con...
9.6.3 Derating for Ambient Temperature and Switching Frequency
NOTICE
FACTORY DERATING
Danfoss drives are already derated for operational temperature (55 °C (131 °F) T
Use the graphs in Table 9.4 to Table 9.5 to determine if the output current must be derated based on switching frequency
and ambient temperature. When referring to the graphs, I
indicates the switching frequency.
Enclosure
D1h–D8h
N90 to N250
380–500 V
9 9
E1h–E4h
N315 to N500
380–500 V
Table 9.4 Derating Tables for Drives Rated 380–500 V
142
Switching High overload HO, 150%
pattern
60 AVM
110
100
90
80
70
60
0 1 2 3
SFAVM
110
100
90
80
70
60
0 1 2
60 AVM
110
100
90
80
70
60
0 1 2
SFAVM
110
100
90
80
70
60
0 1
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VLT® AutomationDrive FC 302
indicates the percentage of rated output current, and fsw
out
50 ˚C (122 ˚F)
55 ˚C (131 ˚F)
4 5 6 7 8 9
45 ˚C (113 ˚F)
50 ˚C (122 ˚F)
55 ˚C (131 ˚F)
3 4 5 6
50 ˚C (122 ˚F)
55 ˚C (131 ˚F)
3 4 5 6 7
45 ˚C (113 ˚F)
50 ˚C (122 ˚F)
55 ˚C (131 ˚F)
2 3 4 5
and 50 °C (122 °F) T
AMB,MAX
Normal overload NO, 110%
110
100
90
80
70
60
50
0 1 2 3 4 5 6
110
100
90
80
70
60
50
0 1 2 3 4
110
100
90
80
70
60
50
0 1 2 3 4
110
100
90
80
70
60
50
0 1 2 3
).
AMB,AVG
45 ˚C (113 ˚F)
50 ˚C (122 ˚F)
55 ˚C (131 ˚F)
7 8 9
40 ˚C (104 ˚F)
45 ˚C (113 ˚F)
50 ˚C (122 ˚F)
55 ˚C (131 ˚F)
5 6
45 ˚C (113 ˚F)
50 ˚C (122 ˚F)
55 ˚C (131 ˚F)
5 6 7
40 ˚C (104 ˚F)
45 ˚C (113 ˚F)
50 ˚C (122 ˚F)
55 ˚C (131 ˚F)
4 5
MG38C202