What Is Covered; Danfoss Vlt Frequency Converter And Ce Labelling - Danfoss VLT AutomationDrive FC 300 Design Manual

FC 300 Design Guide
Frequency converters must be CE labelled in accordance with the low-voltage directive of
January 1, 1997. The directive applies to all electrical equipment and appliances used in the
50 - 1000 V AC and the 75 - 1500 V DC voltage ranges. Danfoss CE-labels in accordance with
the directive and issues a declaration of conformity upon request.
The EMC directive (89/336/EEC)
EMC is short for electromagnetic compatibility. The presence of electromagnetic compatibility means that the
mutual interference between different components/appliances does not affect the way the appliances work.
The EMC directive came into effect January 1, 1996. Danfoss CE-labels in accordance with the directive and
issues a declaration of conformity upon request. To carry out EMC-correct installation, see the instructions in
this Design Guide. In addition, we specify which standards our products comply with. We offer the filters
presented in the specifications and provide other types of assistance to ensure the optimum EMC result.
The frequency converter is most often used by professionals of the trade as a complex component
forming part of a larger appliance, system or installation. It must be noted that the responsibility for
the final EMC properties of the appliance, system or installation rests with the installer.

What Is Covered

"
The EU "Guidelines on the Application of Council Directive 89/336/EEC" outline three typical situations
of using a frequency converter. See below for EMC coverage and CE labelling.
The frequency converter is sold directly to the end-consumer. The frequency converter is for example
1.
sold to a DIY market. The end-consumer is a layman. He installs the frequency converter himself
for use with a hobby machine, a kitchen appliance, etc. For such applications, the frequency
converter must be CE labelled in accordance with the EMC directive.
The frequency converter is sold for installation in a plant. The plant is built up by professionals of the
2.
trade. It could be a production plant or a heating/ventilation plant designed and installed by professionals
of the trade. Neither the frequency converter nor the finished plant has to be CE labelled under the EMC
directive. However, the unit must comply with the basic EMC requirements of the directive. This is
ensured by using components, appliances, and systems that are CE labelled under the EMC directive.
3. The frequency converter is sold as part of a complete system. The system is being marketed as
complete and could e.g. be an air-conditioning system. The complete system must be CE labelled
in accordance with the EMC directive. The manufacturer can ensure CE labelling under the EMC
directive either by using CE labelled components or by testing the EMC of the system. If he chooses
to use only CE labelled components, he does not have to test the entire system.
Danfoss VLT Frequency Converter
"
and CE Labelling
CE labelling is a positive feature when used for its original purpose, i.e. to facilitate trade within the EU and EFTA.
However, CE labelling may cover many different specifications. Thus, you have to check
what a given CE label specifically covers.
The covered specifications can be very different and a CE label may therefore give the installer a false
feeling of security when using a frequency converter as a component in a system or an appliance.
Danfoss CE labels the frequency converters in accordance with the low-voltage directive. This means that if
the frequency converter is installed correctly, we guarantee compliance with the low-voltage directive. Danfoss
issues a declaration of conformity that confirms our CE labelling in accordance with the low-voltage directive.
The CE label also applies to the EMC directive provided that the instructions for EMC-correct installation and
filtering are followed. On this basis, a declaration of conformity in accordance with the EMC directive is issued.
The Design Guide offers detailed instructions for installation to ensure EMC-correct installation.
Furthermore, Danfoss specifies which our different products comply with.
16
Introduction to FC 300
MG.33.B4.02 - VLT is a registered Danfoss trademark