Danfoss VLT AQUA Drive Design Manual page 14

2. Introduction to the VLT AQUA Drive
2.3.2. What Is Covered
The EU "
uations of using an adjustable frequency drive. See below for EMC coverage and CE labeling.
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2.3.3. Danfoss VLT Adjustable Frequency Drive and CE Labeling
CE labeling is a positive feature when used for its original purpose, i.e. to facilitate trade within
the EU and EFTA.
However, CE labeling may cover many different specifications. Thus, you must 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 sense of security when using an adjustable frequency drive as a component in a system or
an appliance.
Danfoss CE labels the adjustable frequency drives in accordance with the low-voltage directive.
This means that if the adjustable frequency drive is installed correctly, we guarantee compliance
with the low-voltage directive. Danfoss issues a declaration of conformity that confirms our CE
labeling in accordance with the low-voltage directive.
The CE label also applies to the EMC directive provided that the instructions for EMC-correct in-
stallation 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.
Danfoss gladly provides other types of assistance that can help you obtain the best EMC result.
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Guidelines on the Application of Council Directive 89/336/EEC
The adjustable frequency drive is sold directly to the end-consumer. For example, it may
be sold to a DIY market. The end-consumer is a layman. He installs the adjustable fre-
quency drive himself for use with a hobby machine, a kitchen appliance, etc. For such
applications, the adjustable frequency drive must be CE-labeled in accordance with the
EMC directive.
The adjustable frequency drive is sold for installation in a plant. The plant is built up by
professionals of the trade. It could be a production plant or a heating/ventilation plant
designed and installed by professionals of the trade. Neither the adjustable frequency
drive nor the finished plant must be CE-labeled 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-labeled under the EMC directive.
The adjustable frequency drive is sold as part of a complete system. The system is being
marketed as complete and could, for example, be an air-conditioning system. The com-
plete system must be CE-labeled in accordance with the EMC directive. The manufacturer
can ensure CE-labeling under the EMC directive either by using CE-labeled components
or by testing the EMC of the system. If he chooses to use only CE-labeled components,
he does not have to test the entire system.
MG.20.N2.22 - VLT
" outline three typical sit-
® is a registered Danfoss trademark.
VLT ® AQUA Drive Design Guide