Derating For Ambient Temperature, Enclosure Type B - Danfoss FC 102 Design Manual

General Specifications and ...
SFAVM - Stator Frequency Asyncron Vector Modulation
I (%)
out
110%
100%
80%
60%
40%
20%
0
0 2 4 6 8 10
Illustration 9.4 Derating of I
out
Enclosures Type A, using SFAVM
When using only 10 m motor cable or less in enclosure
type A, less derating is necessary. This is due to the fact
that the length of the motor cable has a relatively high
impact on the recommended derating.
60° AVM
I (%)
out
110%
100%
80%
60%
40%
20%
0
0 2 4 6 8 10
Illustration 9.5 Derating of I
out
Enclosures Type A, using 60° AVM and maximum 10 m motor
cable
SFAVM
I (%)
out
110%
100%
80%
60%
40%
20%
0
0 2 4 6 8 10
Illustration 9.6 Derating of I
out
Enclosures Type A, using SFAVM and maximum 10 m motor
cable
MG11BC02
Design Guide
A1-A3 45°C, A4-A5 40°C
A1-A3 50°C, A4-A5 45°C
A1-A3 55°C, A4-A5 50°C
f sw (kHz)
12 14 16
for Different T for
AMB, MAX
A1-A3 45°C, A4-A5 40°C
A1-A3 50°C, A4-A5 45°C
A1-A3 55°C, A4-A5 50°C
f sw (kHz)
12 14 16
for Different T for
AMB, MAX
A1-A3 45°C, A4-A5 40°C
A1-A3 50°C, A4-A5 45°C
A1-A3 55°C, A4-A5 50°C
f sw (kHz)
12 14 16
for Different T for
AMB, MAX
Danfoss A/S © Rev. 06/2014 All rights reserved.
9.6.3.1 Enclosure Type A3, T7
I out (%)
110%
100%
80%
60%
40%
20%
0
0 1 2 3 4
Illustration 9.7 Derating of I
out
Enclosure Type A3
9.6.4 Derating for Ambient Temperature,
Enclosure Type B
9.6.4.1 Enclosure Type B, T2, T4 and T5
For the B and C enclosure types the derating also depends
on the overload mode selected in 1-04 Overload Mode
60° AVM - Pulse Width Modulation
I (%)
out
NO
110%
100%
80%
60%
40%
20%
0
0 2 4 6 8
Illustration 9.8 Derating of I
out
enclosure types B1 and B2, using 60° AVM in Normal overload
mode (110% over torque)
I at T max
LOAD AMB
I at T max +5 °C
LOAD AMB
I at T max +5 °C
LOAD AMB
f sw (kHz)
5
for Different T for
AMB, MAX
B1
B2
45°C
50°C
55°C
f (kHz)
sw
10 12 14 16
for different T for
AMB, MAX
165
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