Danfoss VLT AutomationDrive FC 300 Design Manual page 15

Safety and Conformity
the product. Frequency converters are regulated by two EU
directives:
The low-voltage directive (2006/95/EC)
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 - 1000V AC and the 75 - 1500V DC voltage
ranges. Danfoss CE-labels in accordance with the directive
and issues a declaration of conformity upon request.
The EMC directive (2004/108/EC)
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 used by professionals of the
trade, usually as a complex component forming part of a
larger appliance, system or installation. It must be noted
that to maintain the EMC properties of the frequency
converter, it is the obligation of the installer to follow the
installation instructions given by the manufacturer.
2.3.2 What Is Covered
The EU "Guidelines on the Application of Council Directive
2004/108/EC" outline three typical situations of using a
frequency converter.
1. The frequency converter is sold directly to the
end user. For such applications, the frequency
converter must be CE labelled in accordance with
the EMC directive.
2. The frequency converter is sold as part of a
system. It is being marketed as complete system,
e.g. 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 by testing
the EMC of the system. The components of the
system need not to be CE marked.
3. The frequency converter is sold for installation in
a plant. It could be a production or a heating/
ventilation plant designed and installed by
professionals of the trade. The frequency
converter must be CE labelled under the EMC
directive. The finished plant should not bear the
CE mark. However, the installation must comply
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VLT AutomationDrive FC 300 Design Guide, 0.25-75 kW
2.3.3 Danfoss Frequency Converter and CE
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 specifi-
cations. 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 instal-
lation to ensure EMC-correct installation. Furthermore,
Danfoss specifies which our different products comply
with.
Danfoss provides other types of assistance that can help
you obtain the best EMC result.
2.3.4 Compliance with EMC Directive
As mentioned, the frequency converter is mostly 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. As an aid to the installer, Danfoss has
prepared EMC installation guidelines for the Power Drive
system. The standards and test levels stated for Power
Drive systems are complied with, provided that the EMC-
correct instructions for installation are followed, see
Table 3.14.
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MG33BE02 - VLT is a registered Danfoss trademark
with the essential requirements of the directive.
This is assumed by using appliances and systems
that are CE labelled under the EMC directive
Labelling
2004/108/EC
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