Vacon nx User Manual

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Vacon nx User Manual Manual pdf 12 page image

12 • vacon EU DIRECTIVETel. +358 (0)201 2121 • Fax +358 (0)201 212 2052Vacon EMC class L (Protection classes IP21 and IP54: NX_5 FR10 and greater, NX_6 FR6 and greater):Frequency converters of this class comply with the requirements of category C3 of the product standardEN 61800-3 (2004). Category C3 includes converters the rated voltage of which is less than 1000V andwhich are intended for use in the second environment only.Vacon EMC class T:Frequency converters of this class fulfil the product standard EN 61800-3 (2004) if intended to be used in ITsystems. In IT systems, the networks are isolated from earth, or connected to earth through highimpedance to achieve a low leakage current. NOTE: if converters are used with other supplies, no EMCrequirements are complied with.Vacon EMC class N:The drives of this class do not provide EMC emission protection. These kinds of drives are mounted inenclosures. NOTE: An external EMC filter is usually required to fulfil the EMC emission requirements.All Vacon NX_ frequency converters fulfil all EMC immunity requirements (standard EN 61 800-3(2004).Note: For changing the EMC protection class of your Vacon NX_ frequency converter from class H or L toclass T, please refer to the instructions given in Chapter 6.1.3.2.2.3.1 Environment definitions in product standard EN 61800-3 (2004)First environment: Environment that includes domestic premises. It also includes establishments directlyconnected without intermediate transformers to a low-voltage power supply network which suppliesbuildings used for domestic purposes.NOTE: houses, apartments, commercial premises or offices in a residential building are examples of firstenvironment locations.Second environment: Environment that includes all establishments other than those directly connected toa low-voltage power supply network which supplies buildings used for domestic purposes.NOTE: industrial areas, technical areas of any building fed from a dedicated transformer are examples ofsecond environment locations.2.2.4 Manufacturer's declaration of conformityThe following pages present the Manufacturer's Declarations of Conformity assuring the compliance ofVacon frequency converters with the EMC-directives.Warning: In a domestic environment this product may cause radio interference in which case theuser may be required to take adequate measures.