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4.2.2.2 Functional earthing
A functional earthing may also be necessary, if for EMC requirements additional poten-
tial equalization between devices or parts of the system must be available.
The use of the functional earth (FE) is not required if the frequency inverter is
EMC-technically wired.
The functional earth may not be wired green / yellow!
Notes on EMC-compatible installation can be found here.
www.keb.de/fileadmin/media/Manuals/emv/0000neb0000.pdf
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cONNecTION OF THe POWer UNIT
4.2.2 Protective earth and function earth
Protective and functional earth must not be connected to the same terminal.
4.2.2.1 Protective earth
The protective earth (PE) serves for electrical safety particularly personal protection in
error case.
cAUTION
electric shock due to incorrect dimensioning!
►
Cross-section wire to ground should be selected according to
Name
Function
connection type
Tightening torque
Connection for protective
earth
M8 threaded pin with nut for
M8 crimp connector
10...15 Nm
88...132 lb inch
Figure 21: Connection for protective earth
Incorrect installation of the protective earth
Only M8 threaded pins with nut may be used as connection for protective earth!
Содержание COMBIVERT F6 series
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