Danfoss 176F7300 Manual page 80

VLT ® MICRO
3. The adjustable frequency drive is sold as part of a complete system. The system is
being marketed as complete. It could be, for example, an air-conditioning system. The
complete system must be CE labeled in accordance with the EMC directive. The
manufacturer who supplies the system 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.
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. This means that it has to
be checked as to what a given CE label specifically covers.
The specifications covered can in fact be widely different. That is why a CE label can
give the installer a false feeling of security when using an adjustable frequency drive as a
component in a system or an appliance.
We CE label our VLT adjustable frequency drives in accordance with the low-voltage
directive. This means that as long as the VLT adjustable frequency drive is installed
correctly, we guarantee that it complies with the low-voltage directive. We issue 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, on condition that the instructions given in
the operating instructions for EMC-correct installation and filtering have been followed.
On the basis, a declaration of conformity in accordance with the EMC directive is issued.
The operating instructions give detailed instructions for installation to ensure that your
installation is EMC-correct. Furthermore, we specify which norms that are complied with
by our different products.
We offer the filters that can be seen from the specifications and gladly provide other
types of assistance that can help you obtain the best EMC result.
Compliance with EMC directive 89/336/EEC
In the great majority of cases, the VLT adjustable frequency drive is used by
professionals of the trade as a complex component forming 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 a 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 the right
EMC-correct instructions for installation have been followed.
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