WEG CFW900 - Other Derating Factors

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TECHNICALSPECIFICATIONS
Altitude
(m)
Io,no m
(%)
Vin
(%)
0 100% 100%
500 100% 100%
1000 100% 100%
1500 95% 100 %
2000 90% 100 %
2500 85% 95%
3000 80% 89%
3500 75% 84%
4000 70% 78%
50%
60%
70%
80%
90%
100%
110%
0 500 1000 1500 2000 2500 3000 3500 4000
Reduc�on Factor (%)
Altitude (m)
Io,nom
(%)
Vin
(%)
Figure8.4:Currentderatingasafunctionoftheinstallationaltitude
8.2.5OtherDeratingFactors
Therearefactorsrelatedtotheinverterapplicationthatrequireratedcurrentderating.Inthesecases,WEGmust
beconsulted.
Prolongedinverteroperationatlowoutputfrequencies(<5Hz).
Repetitivecycleapplicationswithhighmotorcurrentatlowspeeds(e.g.,accelerationsanddecelerations).
ThecurrentderatingfactormustbesetintheC1.6.4parameter(ManualReductionInom).
CFW900|105