11.1.2 Derating for Temperature
The frequency converter automatically derates the
switching frequency, switching type, or output current
under certain load or ambient conditions as described
below. The derating curves in Illustration 11.1 and
Illustration 11.2 apply to both SFAVM and 60 AVM
switching modes.
130BX491.10
Iout [%]
fsw
[kHz]
o
70
80
90
0.5
60
100
110
2.0
50 C
55 C
0.0
o
1.0 1.5 2.5 4.03.0 3.5
o
45 C
Illustration 11.1 Derating Frame Sizes D, E, and F 380-500 V
(T5) High Overload 150%
130BX492.10
o
70
80
90
0.5
Iout [%]
60
100
110
2.0
fsw
[kHz]
50 C
55 C
0.0
o
1.0 1.5 2.5 4.03.0 3.5
o
45 C
o
40 C
50
Illustration 11.2 Derating Frame Sizes D, E, and F 380-500 V
(T5) Normal Overload 110%
Specifications Operating Instructions
142 Danfoss A/S © Rev. 2014-07-29 All rights reserved. MG37A202
1111
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