Danfoss VLT AutomationDrive FC 360 Design Manual page 50

Design Guide | VLT® AutomationDrive FC 360
Figure 19: Derating of Output Current Based on Altitude at T
Derating for Ambient Temperature and Switching Frequency
6.6.4
FACTORY DERATING
Danfoss drives are already derated for operational temperature (55 °C (131 °F) T
Use the graphs in the following table to determine if the output current must be derated based on switching frequency and ambient
temperature. When referring to the graphs, I
frequency.
Table 7: Derating Tables for Drives Rated 380–480 V
Enclosure size Switching pattern
J8-J9 60 AVM
SFAVM
48
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AMB, MAX
NOTICE
indicates the percentage of rated output current, and f
out
High overload HO, 150%
110
100
90
80
70
60
0 1 2 3 4 5
110
100
90
80
70
60
0 1 2 3
and 50 °C (122 °F) T
AMB, MAX
sw
Normal overload NO, 110%
110
100
90
80
70
60
50 ˚C (122 ˚F)
55 ˚C (131 ˚F)
50
6 7 8 9 0 1
110
100
90
80
70
45 ˚C (113 ˚F)
50 ˚C (122 ˚F)
60
55 ˚C (131 ˚F)
4 5 6
50
0
AJ435824192086en-000101 / 130R1295
).
AMB, AVG
indicates the switching
45 ˚C (113 ˚F)
50 ˚C (122 ˚F)
55 ˚C (131 ˚F)
2 3 4 5 6 7 8 9
40 ˚C (104 ˚F)
45 ˚C (113 ˚F)
50 ˚C (122 ˚F)
55 ˚C (131 ˚F)
1 2 3 4 5 6