Illustration 5.19: Emc-Correct Electrical Installation Of An Ip20 Frequency Converter - Danfoss VLT Series Design Manual

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VLT HVAC Drive Design Guide 5. How to Install
Leave the screen as close to the connectors as possible.
The illustration shows an example of an EMC-correct electrical installation of an IP 20 frequency
converter. The frequency converter is fitted in an installation cabinet with an output contactor and
connected to a PLC, which is installed in a separate cabinet. Other ways of doing the installation
may have just as good an EMC performance, provided the above guide lines to engineering prac-
tice are followed.
If the installation is not carried out according to the guideline and if unscreened cables and control
wires are used, some emission requirements are not complied with, although the immunity re-
EMC test results
quirements are fulfilled. See the paragraph .
5

Illustration 5.19: EMC-correct electrical installation of an IP20 frequency converter.

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MG.11.B2.02 - VLT is a registered Danfoss trademark