WEG CFW900 - Derating Factor According to the Switching Frequency (Fdfsw)

English
TECHNICALSPECIFICATIONS
-10 100% 100%
-5 100% 100%
0 100% 100%
5 100% 100%
10 100% 100%
15 100% 100%
20 100% 100%
25 100% 100%
30 100% 100%
35 100% 100%
40 100% 100%
45 100% 95%
50 100% 90%
55 90% 81%
60 80% 72%
-10 100% 100%
-5 100% 100%
0 100% 100%
5 100% 100%
10 100% 100%
15 100% 100%
20 100% 100%
25 100% 100%
30 100% 100%
35 100% 100%
40 100% 100%
45 100% 95%
50 90% 86%
55 80% 76%
60 70% 67%
Ta (°C)
Ta (°C)
fsw >
fsw,nom
(2)
fsw =
fsw,nom=
4 kHz
(1)
fsw >
fsw,nom
(2)
fsw =
fsw,nom=
2 kHz
(1)
fsw = fsw,nom=
4 kHz
(1)
fsw > fsw,nom
(2)
60%
70%
80%
90%
100%
110%
-10 -5 0 5 10 15 20 25 30 35 40 45 50 55 60
Io,nom (%)
Ta (°C)
60%
70%
80%
90%
100%
110%
-10 -5 0 5 10 15 20 25 30 35 40 45 50 55 60
Io,nom (%)
Ta (°C)
Frame Size E
fsw = fsw,nom=
2 kHz
(1)
fsw > fsw,nom
(2)
Frame Size A ... D
Frame A ... D
Frame E
(1)
Withtheinverterthermalmanagementfunctionenabled(ifdisabledseenote(2)below)orfsw≤ 2kHztoframesizeA...Dandfsw≤ 1.5
kHztoframesizeE(inthiscaseregardlessoftheinverterthermalmanagementfunction).
(2)
Thiscurvemustalsobeusedwhenfsw=fsw,nomandtheinverterthermalmanagementfunctionisdisabled.
Figure8.2:Currentderatingaccordingtotheambienttemperature(notethatthecurrentderatingalsodependsontheswitchingfrequency
(fsw)setinparameterC1.3.1(UserSwitchingFrequency))
8.2.3DeratingfactoraccordingtotheSwitchingFrequency(FDfsw)
TheratedandmaximumswitchingfrequencyofCFW900aredefinedin
item8.1.2.Itispossibletooperatewith
afrequencyabovetheratedone,limitedtothemaximumfrequency;however,inthesecasesitisnecessaryto
deratingtheratedcurrent,asshownin
Figure8.3.
CFW900|103