Caution; Ce Labelling - Danfoss VLT Design Manual

Introduction

2.1.2 Caution

CAUTION
The frequency converter DC link capacitors remain charged
after power has been disconnected. To avoid an electrical
shock hazard, disconnect the frequency converter from the
mains before carrying out maintenance. Wait at least as
follows before doing service on the frequency converter:
Voltage (V) Minimum waiting time (minutes)
4
200-240 1.1-3.7 kW
380-480 1.1-7.5 kW
525-600 1.1-7.5 kW
High voltage may be present even when the
warning LEDs are off!
Table 2.1 Discharge Time
Equipment containing electrical
components may not be disposed of
together with domestic waste.
It must be separately collected with
electrical and electronic waste according
to local and currently valid legislation.
Table 2.2

2.2 CE labelling

2.2.1 CE Conformity and Labelling
What is CE Conformity and Labelling?
The purpose of CE labelling is to avoid technical trade
obstacles within EFTA and the EU. The EU has introduced
the CE label as a simple way of showing whether a
product complies with the relevant EU directives. The CE
label says nothing about the specifications or quality of
the product. Frequency converters are regulated by three
EU directives:
The machinery directive (2006/42/EC)
Frequency converters with integrated safety function are
now falling under the Machinery Directive. Danfoss CE-
labels in accordance with the directive and issues a
declaration of conformity upon request. Frequency
converters without safety function do not fall under the
machinery directive. However, if a frequency converter is
supplied for use in a machine, we provide information on
safety aspects relating to the frequency converter.
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 - 1000 V AC and the 75 - 1500 V DC voltage
®
VLT Refrigeration Drive Design Guide
15 20
5.5-37 kW
11-75 kW 110-250 kW
11-75 kW
®
MG16G102 - VLT is a registered Danfoss trademark
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 most often used by profes-
sionals 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.
2.2.2 What Is Covered
The EU "Guidelines on the Application of Council Directive
2004/108/EC" outline three typical situations of using a
frequency converter. See below for EMC coverage and CE
labelling.
1. The frequency converter is sold directly to the
end-consumer. The frequency converter is for
example sold to a DIY market. The end-consumer
is a layman. He installs the frequency converter
himself for use with a hobby machine, a kitchen
appliance, etc. For such applications, the
frequency converter must be CE labelled in
accordance with the EMC directive.
2. The frequency converter 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
frequency converter nor the finished plant has to
be CE labelled 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 labelled under the EMC directive.
3. The frequency converter is sold as part of a
complete system. The system is being marketed
as complete and could e.g. be 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 either by using CE labelled
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