Danfoss VLT AutomationDrive FC 300 - Derating for Ambient Temperature

4.7.2 Derating for Ambient Temperature
Graphs are presented individually for 60° AVM and SFAVM. 60° AVM only switches 2/3 of the time, whereas SFAVM switches
throughout the whole period. The maximum switching frequency is 16 kHz for 60° AVM and 10 kHz for SFAVM. The discrete
switching frequencies are presented in Table 4.20 and Table 4.21.
Frame
model
Switching
pattern
High overload HO, 150% Normal overload NO, 110%
D-frame
N90 to N250
380–500 V
60 AVM
130BX473.10
Iout [%]
fsw [kHz]
o
70
80
90
1
60
100
110
2 3 4 5 6 7 8
9
50 C
o
55 C
0
130BX474.10
70
80
90
1
60
100
110
2 3 4 5 6 7 8 90
50
o
50 C
o
55 C
o
45 C
Iout [%]
fsw
[kHz]
SFAVM
130BX475.10
Iout [%]
fsw
[kHz]
o
70
80
90
60
100
110
2 4 6
50 C
o
55 C
0
o
45 C
31 5
130BX476.10
Iout [%]
fsw
[kHz]
o
70
80
90
60
100
110
2 4
6
50 C
o
55 C
0
o
45 C
50
o
40 C
1
3
5
E & F-frame
P315 to P1M0
380–500 V
60 AVM
130BX477.10
o
70
80
90
1
60
100
110
2 3 4 5 6 7
50 C
o
55 C
0
Iout [%]
fsw
[kHz]
130BX478.10
Iout [%]
fsw
[kHz]
o
70
80
90
1
60
100
110
2 3 4 5 6 7
50 C
o
55 C
0
50
o
45 C
SFAVM
130BX479.10
Iout [%]
fsw
[kHz]
o
70
80
90
1
60
100
110
2 3 4 5
50 C
o
55 C
0
o
45 C
130BX480.10
Iout [%]
fsw
[kHz]
o
70
80
90
1
60
100
110
2 3 4 5
50 C
55 C
0
o
45 C
o
50
o
40 C
Table 4.20 Derating Tables for Adjustable Frequency Drives Rated 380–500 V (T5)
Selection
Design Guide
MG34S222 Danfoss A/S © Rev. 2014-02-10 All rights reserved. 87
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