Danfoss VLT HVAC Drive FC 100 Series, Руководство по конструкции

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be CE labeled in accordance with the EMC
directive.
2. The Adjustable frequency drive is sold for instal-
lation 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 has to 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.
3. 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 complete 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.
2.2.3 Danfoss 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 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 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 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.
2.2.4 Compliance with EMC Directive
2004/108/EC
As mentioned, the Adjustable frequency drive 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-compatible instructions for installation are followed;
see the section
EMC Immunity
.
2.3 Air humidity
The Adjustable frequency drive has been designed to meet
the IEC/EN 60068-2-3 standard, EN 50178 pkt. 9.4.2.2 at
122ºF [50
°
C].
2.4 Aggressive Environments
A Adjustable frequency drive contains a large number of
mechanical and electronic components. All are to some
extent vulnerable to environmental effects.
CAUTION
The Adjustable frequency drive should not be installed in
environments with airborne liquids, particles, or gases
capable of affecting and damaging the electronic
components. Failure to take the necessary protective
measures increases the risk of stoppages, thus reducing
the life of the Adjustable frequency drive.
Degree of protection as per IEC 60529
The safe stop function may only be installed and operated
in a control cabinet with a degree of protection of IP54 or
higher (or equivalent environment). This is required to
avoid cross faults and short circuits between terminals,
Introduction to VLT® HVAC D...
VLT
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HVAC Drive Design Guide
MG11BB22 - VLT
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