Danfoss VLT AQUA FC 202 - Overview Table

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
e30bb973.10
U
dc
↑
No automatic derating
e30bb974.10
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
e30bc143.10
f
sw
[kHz]
e30bb975.10
SFAVM only
3.9 4 9.9 10 15
f
sw,fm1
f
sw,fm2
f
sw,fm3
f
sw,fm4
T ↑
e30bc142.10
T
AMB
T
PWM SWITCH
60 PWM
SFAVM
e30bb976.10
T
AMB
High warning
Low warning
f
sw
t
1
t
2
AJ300847815559en-000101 / 130R0337 | 41Danfoss A/S © 2020.09
Product Features
VLT® AQUA Drive FC 202
Design Guide