Danfoss VLT HVAC Drive FC 100 Series Design Manual

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Danfoss VLT HVAC Drive FC 100 Series Design Manual Manual pdf 13 page image

be CE labeled in accordance with the EMCdirective.2. The Adjustable frequency drive is sold for instal-lation in a plant. The plant is built up byprofessionals of the trade. It could be aproduction plant or a heating/ventilation plantdesigned and installed by professionals of thetrade. Neither the Adjustable frequency drive northe finished plant has to be CE labeled under theEMC directive. However, the unit must complywith the basic EMC requirements of the directive.This is ensured by using components, appliancesand systems that are CE-labeled under the EMCdirective.3. The Adjustable frequency drive is sold as part ofa complete system. The system is being marketedas complete and could, for example, be an air-conditioning system. The complete system mustbe CE-labeled in accordance with the EMCdirective. The manufacturer can ensure CElabeling under the EMC directive either by usingCE labeled components or by testing the EMC ofthe system. If he chooses to use only CE labeledcomponents, he does not have to test the entiresystem.2.2.3 Danfoss Adjustable Frequency Driveand CE LabelingCE labeling is a positive feature when used for its originalpurpose, 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 labelspecifically covers.The covered specifications can be very different and a CElabel may therefore give the installer a false feeling ofsecurity when using a Adjustable frequency drive as acomponent in a system or an appliance.Danfoss CE labels the adjustable frequency drives inaccordance with the low-voltage directive. This means thatif the Adjustable frequency drive is installed correctly, weguarantee compliance with the low-voltage directive.Danfoss issues a declaration of conformity that confirmsour CE labeling in accordance with the low-voltagedirective.The CE label also applies to the EMC directive providedthat the instructions for EMC-correct installation andfiltering are followed. On this basis, a declaration ofconformity 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 complywith.Danfoss provides other types of assistance that can helpyou obtain the best EMC result.2.2.4 Compliance with EMC Directive2004/108/ECAs mentioned, the Adjustable frequency drive is mostlyused by professionals of the trade as a complexcomponent forming part of a larger appliance, system, orinstallation. It must be noted that the responsibility for thefinal EMC properties of the appliance, system or installationrests with the installer. As an aid to the installer, Danfosshas prepared EMC installation guidelines for the PowerDrive system. The standards and test levels stated forpower drive systems are complied with, provided that theEMC-compatible instructions for installation are followed;see the section EMC Immunity.2.3 Air humidityThe Adjustable frequency drive has been designed to meetthe IEC/EN 60068-2-3 standard, EN 50178 pkt. 9.4.2.2 at122ºF [50°C].2.4 Aggressive EnvironmentsA Adjustable frequency drive contains a large number ofmechanical and electronic components. All are to someextent vulnerable to environmental effects.CAUTIONThe Adjustable frequency drive should not be installed inenvironments with airborne liquids, particles, or gasescapable of affecting and damaging the electroniccomponents. Failure to take the necessary protectivemeasures increases the risk of stoppages, thus reducingthe life of the Adjustable frequency drive.Degree of protection as per IEC 60529The safe stop function may only be installed and operatedin a control cabinet with a degree of protection of IP54 orhigher (or equivalent environment). This is required toavoid cross faults and short circuits between terminals,Introduction to VLT® HVAC D... VLT® HVAC Drive Design GuideMG11BB22 - VLT® is a registered Danfoss trademark 2-32 2