Danfoss VLT AHF 005 Design Guide

9.6.3 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 9.4 and Table 9.5.
Model Switching
pattern
High overload HO, 150% Normal overload NO, 110%
P355 to P1M0
380–480 V
60 AVM
130BX477.11
70
80
90
1
60
100
110
2 3 4 5 6 70
Iout [%]
fsw
[kHz]
50 ˚C (122 ˚F)
55 ˚C (131 ˚F)
130BX478.12
Iout [%]
fsw
[kHz]
70
80
90
1
60
100
110
2 3 4 5 6 70
50
45 ˚C (113 ˚F)
50 ˚C (122 ˚F)
55 ˚C (131 ˚F)
SFAVM
130BX479.11
Iout [%]
fsw
[kHz]
70
80
90
1
60
100
110
2 3 4 50
45 ˚C (113 ˚F)
50 ˚C (122 ˚F)
55 ˚C (131 ˚F)
130BX480.11
Iout [%]
fsw
[kHz]
70
80
90
1
60
100
110
2 3 4 50
50
40 ˚C (104 ˚F)
45 ˚C (113 ˚F)
50 ˚C (122 ˚F)
55 ˚C (131 ˚F)
Table 9.4 Ambient Temperature Derating Tables for E1–E2, F1–F4, and F8–F13 Enclosures, 380–480 V
Model Switching
pattern
High overload HO, 150% Normal overload NO, 110%
P450 to P1M4
525–690 V
60 AVM
130BX489.11
Iout [%]
fsw
[kHz]
70
80
90
0.5
60
100
110
2.00.0 1.0 1.5 2.5 4.03.0 3.5
5.54.5 5.0
50 ˚C (122 ˚F)
55 ˚C (131 ˚F)
130BX490.11
Iout [%]
fsw
[kHz]
70
80
90
0.5
60
100
110
2.00.0 1.0 1.5 2.5 4.03.0 3.5 5.54.5 5.0
50
55 ˚C (131 ˚F)
45 ˚C (113 ˚F)
50 ˚C (122 ˚F)
SFAVM
130BX491.11
Iout [%]
fsw
[kHz]
70
80
90
0.5
60
100
110
2.00.0 1.0 1.5 2.5 4.03.0 3.5
55 ˚C (131 ˚F)
50 ˚C (122 ˚F)
45 ˚C (113 ˚F)
130BX492.11
70
80
90
0.5
Iout [%]
60
100
110
2.0
fsw
[kHz]
0.0 1.0 1.5 2.5 4.03.0 3.5
50
55 ˚C (131 ˚F)
50 ˚C (122 ˚F)
45 ˚C (113 ˚F)
40 ˚C (104 ˚F)
Table 9.5 Ambient Temperature Derating Tables for E1–E2, F1–F4, and F8–F13 Enclosures, 525–690 V
Mechanical Installation Con...
VLT
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Danfoss VLT AHF 005 Specifications

General

Brand	Danfoss
Model	VLT AHF 005
Category	DC Drives
Language	English