2.5 CE conformity
What is the purpose of EC directives?
EC directives are issued by the
European
Council and are intended
for the determination of common technical requirements
(harmonization) and cet-tification procedures within the
European
Community. At the moment, there are 21 EC directives of product
ranges.
The directives are or will be
conver-ted
to national laws of
the member states. A certification issued by one member state is
valid automatically without any
fut-ther
approval in all other member
states.
The texts of the directives are restricted to the essential
requirements. Technical details are or will be determined by
European
harmonized Standards.
What does the CE mark imply?
After a verification, the conformity to the EC directives is
certified
by
affixing a CE mark. Within the EC there are no commercial barriers
for a product with the CE mark. The enclosure of a conformity
cet-tification is not necessary according to most directives.
Therefore, the customer is not able to appreciate
which
of the 21
EC directives applies to a product and
which
harmonized Standards
are considered in the conformity verification.
A drive
controller
with the CE mark itself corresponds exclusively to
the Low-Voltage
Directive.
For the compliance with the EMC
Directive
only general recommendations have been issued so far.
The CE conformity of the installed
machine
remains the
responsibility of the
User.
For the
installation
of CE-typical drive
Systems
(see page
26ff),
Lenze has already proved the CE
conformity to the EMC
Directive.
What is the aim of the EMC
Directive?
The EC
Directive
relating to
Electromagnetit
Compatibility is
effective
for “equipment”
which
may either
Cause
electromagnetic
disturbances or be affected by such disturbances.
The aim is the limitation of the generation of
electromagnetic
disturbances so that the Operation of radio and telecommunication
Systems
and other equipment is possible and that a suitable
immunity of the equipment against
electromagnetic
disturbances is
ensured so that the Operation
tan
be achieved.
What is the
objective
of the Low-Voltage
Directive?
The Low-Voltage
Directive
is
effective
for all electrical equipment
for use with a rated voltage between 50V and 1 OOOV AC and
between 75 and 1500V DC and
under
normal ambient conditions.
The use of e.g. electrical equipment in explosive atmospheres and
electrical
Parts
in passenger and goods lifts are excepted.
The
objective
of the Low-Voltage
Directive
is to ensure that
only
that electrical equipment
which
does not endanger the safety of man or
animals
is
placed
on the market. lt should
also be designed to
conserve
material
assets.
14
lenze
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