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6.1.9.3 Overview Table
Table 10: Overview - Derating
Back-
ground
for de-
rating
PWM - Functions that adjust the switching pat-
tern
f
sw
– Functions that derate the switching frequency
I
load
↑
No automatic derating
f
sw
16 KHz @ 60 PWM
10 KHz @ SFAVM
10 KHz @ 60 PWM
7 KHz @ SFAVM
70%
160%
I
m
e
3
0
b
b
9
7
3
.1
0
U
dc
↑
No automatic derating
e
3
0
b
b
9
7
4
.1
0
U
DC
U
DC,TRIP
U
DC, START DERATING
Requested f
sw
f
sw
f
s
10–15 Hz
80–86% of
f
motor,nom
f
motor
[Hz]
PWM
SFAVM
60 PWM
optional
e
3
0
b
c
1
4
3
.1
0
f
sw
[kHz]
e
3
0
b
b
9
7
5
.1
0
SFAVM only
3.9 4
9.9
10
15
f
sw,fm1
f
sw,fm2
f
sw,fm3
f
sw,fm4
T
↑
e
3
0
b
c
1
4
2
.1
0
T
AMB
T
PWM SWITCH
60 PWM
SFAVM
e
3
0
b
b
9
7
6
.1
0
T
AMB
High warning
Low warning
f
sw
t
1
t
2
AJ300847815559en-000101 / 130R0337 | 41
Danfoss A/S © 2020.09
Product Features
VLT® AQUA Drive FC 202
Design Guide