WEG CFW900 - Conformal Installation; Emission and Immunity Levels Met

English
INSTALLATIONANDCONNECTION
3.3.2ConformalInstallation
Forconformalinstallation,youmust:
1.ForTT/TNsupplynetworks,keeptheinternalRFIfilterconnected.
2.Shieldedoutputcables(motorcables)withtheshieldconnectedonbothsides,motorandinverter,with
lowimpedanceconnectionforhighfrequency;forexample,see
Figure3.23.Keeptheseparationfromthe
othercablesaccordingtoTable3.9.Formoreinformationsee
item3.2.4.Maximummotorcablelengthand
conducedandradiatedemissionlevelsaccordingto
Table3.18.
3.Groundtheinverterasexplainedinitem3.2.5.
4.Useshieldedcontrolcablesandkeeptheseparationfromtheothercablesaccordingto
Item3.2.6.
5.DesignorchoosethepanelconsideringtheapplicablemeasurestocomplywiththeEMCstandards.If
anextensionismadeinsidethepanelforconnectingthepower,motorandgroundcables(thatis,ifthese
cablesarenotdirectlyconnectedtotheinverterterminals),thepanelmustbedesignedsoastohavealow
impedanceconnectionforhighfrequencies.Inthiscase,itisnotnecessarytouseashieldedcablebetween
theinverterUVWterminalsandtheconnectionpointsofthemotorshieldedconnectioncable;however,itis
necessarytoprovideawaytogroundthecableshieldwitha360°connectioninasimilarwaytotheone
foundintheinvertercablegroundingkitsuppliedwiththeinverter.
3.3.3EmissionandImmunityLevelsMet
Table3.18:Emissionandimmunitylevels
EMCPHENOMENONLEVELBASICSTANDARD
Emission
Mainsterminaldisturbancevoltage
Frequencyrange:150kHzto30MHz
CategoryC2:maximum10mcableinTT/TN
networks
(1)(2)
CategoryC3:maximum200mcableinTT/TN
networks
CategoryC4:ITordeltaearthednetworks
IEC/EN61800-3:2017
Electromagneticradiationdisturbance
Frequencyrange:30MHzto1GHz
1.4GHzto2.7GHz
CategoryC3inTT/TNnetworks
(AllframeDmodelsrequireapanelwithminimum
attenuationof10dBtocomplywiththeC3
category)
CategoryC4:ITordeltaearthednetwork
Immunity
Electrostaticdischargeimmunitytest4kVforcontactdischargeand8kVforair
discharge
IEC61000-4-2
ElectricalFastTransient/Burstimmunitytest
2kV/5 kHz(couplingcapacitor)inputcables,
controlcablesandmotorcable
1kV/5kHz(couplingcapacitor)remoteHMIcable
IEC61000-4-4
Immunitytoconducteddisturbancesinducedbyradio-
frequencyfields
0.15to80MHz;10V;80%AM(1kHz)
Motor,controlandremoteHMIcables
IEC61000-4-6
Surgeimmunitytest
1.2/50µs,8/20µs
1kVinputcables,line-to-linecoupling
2kVinputcables,line-to-groundcoupling
1kVcontrolcables,couplingtothecableshield,
cableshieldgroundedatbothends
IEC61000-4-5
Radiated,radio-frequency,electromagneticfieldimmunity
test
8a1000MHz
10V/m
80%AM(1kHz)
IEC61000-4-3
(1)
Useoftoroidonpowercablesisrequired(PartNumberT60006-L2045-V101-01-VACUUMSCHMELZEmanufacturerorsimilar).
(2)
ThemodelswithframesC,DandEoflineT2andframeEoflineT4donotcomplywiththeC2category.
46|CFW900