Certification
Page C-2 890CS Common Bus Supply - Frames B & D; 890CD Common Bus Drive and 890SD Standalone Drive - Frames B, C & D
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What is the EMC Directive? (89/336/EEC)
The EMC
1
Directive is one of a series of directives created to allow manufacturers to trade freely within the
EEC territory. This is done by creating the CE mark
, a "trade symbol" showing that requirements for
safety and health are met. These requirements (called "essential requirements") are those apparatus has to
meet to obtain the "presumption of conformity".
The aim of the EMC Directive 89/336/EEC is to ensure that any electric, or electronic, device will create no
more then a limited amount of RF interference so that other apparatus are not affected from functioning
correctly. Also to ensure that an electric, or electronic, device will withstand a certain amount of Electro
Magnetic interference from other equipment.
History
Historically each European drives manufacture and importer interpreted the EMC directive and ‘CE’
marking requirements differently.
To provide a unified approach the European machines and drives manufactures, via their national trade
associations have formed the ‘European Committee of Manufacturers of Electrical Machines and Power
Electronics’, termed CEMEP. Recommendations were produced by this committee for the application of
the European Council Directives to power drive systems. These are to be followed by all major European
Drives manufacturers.
The “EMC Drive Product Specific Standard” EN 61800-3 was listed in the Official Journal of Europe on
January 1st 1997. This standard takes precedence over the Generics Standards. Working to the product
standard is a sensible approach to take to show EMC conformance. However many of our customers are
tied to the Generic standards for the final application of our drives; we therefore continue to design, test and
certify our drives to these standards.
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EMC stands for Electro Magnetic Compatibility, a term for the behaviour of an apparatus in terms of the Electro magnetic interference it generates and the
immunity to an Electro magnetic field on its enclosure and cables
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