Automatic Adaptations To Ensure Performance; Derating For Ambient Temperature - Danfoss VLT AQUA Drive FC 202 Design Manual

General Specifications and ...

8.5.4 Automatic Adaptations to Ensure Performance

The frequency converter constantly checks for critical levels of internal temperature, load current, high voltage on the
intermediate circuit and low motor speeds. As a response to a critical level, the frequency converter can adjust the
switching frequency and/or change the switching pattern in order to ensure the performance of the frequency converter.
The capability to reduce the output current automatically extends the acceptable operating conditions even further.

8.5.5 Derating for Ambient Temperature

Frame
Normal overload NO, 110% 60 AVM
model
D-Frame
110
N110 to N315
100
380-480 V
90
80
70
60
50
0 1
E & F-Frame
110
P355 to P1M0
100
380-480 V
90
80
70
60
50
0 1
Table 8.23 Derating Tables for Frequency Converters Rated 380–480 V (T4)
Frame
Normal overload NO, 110% 60 AVM
model
D-Frame
110
N110 to N315
100
525-690 V
90
80
70
60
50
0 1
MG20Z202
Design Guide
45 C
50 C
55 C
2 3 4 5 6 7 8
45 C
50 C
55 C
2 3 4 5 6
o
45 C
o
50 C
o
55 C
2 3 4 5 5 6
Danfoss A/S © Rev. 06/2014 All rights reserved.
Normal overload NO, 110% SFAVM
110
100
90
80
70
o
60
o
50
o
0 1
9
110
100
90
80
o
70
o
60
o
50
7 0 1
Normal overload NO, 110% SFAVM
110
100
90
80
70
60
50
0 1
7
o
40 C
o
45 C
o
50 C
o
55 C
2 3 4 5 6
o
40 C
o
45 C
o
50 C
o
55 C
2 3 4 5
o
40 C
o
45 C
o
50 C
o
55 C
2 3 4 5
8 8
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