1.6 Approvals and Certifications
Frequency converters are designed in compliance with the
directives described in this section.
For more information on approvals and certificates, go to
the download area at
1.6.1 CE Mark
The CE mark (Communauté européenne) indicates that the
product manufacturer conforms to all applicable EU
directives. The EU directives applicable to the design and
manufacture of frequency converters are the directive low-
voltage, the EMC directive, and (for units with an
integrated safety function) the machinery directive.
The CE mark is intended to eliminate technical barriers to
free trade between the EC and EFTA states inside the ECU.
The CE mark does not regulate the quality of the product.
Technical specifications cannot be deduced from the CE
mark.
1.6.2 Low Voltage Directive
Frequency converters are classified as electronic
components and must be CE labelled in accordance with
the low-voltage directive. The directive applies to all
electrical equipment in the 50–1000 V AC and the 75–1600
V DC voltage ranges.
The directive mandates that the equipment design must
ensure the safety and health of people and livestock and
the preservation of material by ensuring the equipment is
properly installed, maintained, and used as intended.
Danfoss CE labels comply with the low-voltage directive
and Danfoss will provide a declaration of conformity upon
request.
1.6.3 EMC Directive
Electromagnetic compatibility (EMC) means that electro-
magnetic interference between pieces of equipment does
not hinder their performance. The basic protection
requirement of the EMC Directive 2004/108/EC states that
devices that generate electromagnetic interference (EMI) or
whose operation could be affected by EMI must be
designed to limit the generation of electromagnetic
interference and shall have a suitable degree of immunity
to EMI when properly installed, maintained, and used as
intended.
A frequency converter can be used as stand-alone device
or as part of a more complex installation. Devices in either
of these cases must bear the CE mark. Systems must not
be CE marked but must comply with the basic protection
requirements of the EMC directive.
Introduction
Design Guide
10
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