Special Conditions; Purpose Of Derating; Derating For Ambient Temperature; Danfoss A/S © Rev. 05/2014 All Rights Reserved - Danfoss VLT HVAC Drive FC 102 Design Manual

General Specifications and ...

8.5 Special Conditions

8.5.1 Purpose of Derating

Take derating into account when using the frequency
converter in the following conditions:
•
At low air pressure (heights)
•
At low speeds

8.5.2 Derating for Ambient Temperature

Frame
model
D-Frame
N110 to N315
380-480 V
8 8
E & F-Frame
P355 to P1M0
380-480 V
Table 8.14 Derating Tables for Frequency Converters Rated 380–480 V (T4)
Frame
model
D-Frame
N110 to N315
525-690 V
202
Design Guide
Normal overload NO, 110% 60 AVM
110
100
90
80
70
60
50
0 1 2 3 4 5
110
100
90
80
70
60
50
0 1 2 3 4
Normal overload NO, 110% 60 AVM
110
100
90
80
70
60
50
0 1 2 3 4
Danfoss A/S © Rev. 05/2014 All rights reserved.
•
With long motor cables
•
Cables with a large section
•
High ambient temperature
The required actions are described in this section.
110
100
90
80
70
o
45 C
60
o
50 C
50
o
55 C
6 7 8 9
110
100
90
80
o
45 C
70
o
50 C
60
o
55 C
50
5 6 7
110
100
90
80
70
o
45 C
60
o
50 C
o 50
55 C
0
5 5 6 7
Normal overload NO, 110% SFAVM
0 1 2 3 4
0 1 2 3
Normal overload NO, 110% SFAVM
1 2 3
o
40 C
o
45 C
o
50 C
o
55 C
5 6
o
40 C
o
45 C
o
50 C
o
55 C
4 5
o
40 C
o
45 C
o
50 C
o
55 C
4 5
MG16C202