Danfoss VLT AQUA Drive FC 202 Design Manual

Also see for VLT AQUA Drive FC 202: Service guide Installation guide Installation guide Operating guide Installation guide

Contents

appliances, and systems that are CE labelledunder the EMC directive.3. The frequency converter is sold as part of acomplete system, such as an air-conditioningsystem. The entire system must be CE labelled inaccordance with the EMC directive. Themanufacturer can ensure CE labelling under theEMC directive either by using CE labelledcomponents or by testing the EMC of the system.If the manufacturer chooses to use only CElabelled components, there is no need to test theentire system.2.3.3 Danfoss Frequency Converter and CELabellingCE labelling is a positive feature when used for its originalpurpose, which is to facilitate trade within the EU andEFTA.CE labelling can cover many different specifications, socheck the CE label to ensure that it covers the relevantapplications.Danfoss CE labels the frequency converters in accordancewith the low-voltage directive, meaning that if thefrequency converter is installed correctly, Danfossguarantees compliance with the low-voltage directive.Danfoss issues a declaration of conformity that confirmsour CE labelling in accordance with the low-voltagedirective.The CE label also applies if following the instructions forEMC-correct installation and filtering.Detailed instructions for EMC-correct installation are foundin . Furthermore, Danfoss specifies which standards ourproducts comply with.2.3.4 Compliance with EMC Directive2004/108/ECThe primary users of the frequency converter are tradeprofessionals, who use it as a complex component formingpart of a larger appliance, system, or installation. Theresponsibility for the final EMC properties of the appliance,system, or installation rests with the installer. As an aid tothe installer, Danfoss has prepared EMC installationguidelines for the power drive system. If the EMC-correctinstructions for installation are followed, the standards andtest levels stated for power drive systems are compliedwith. See chapter 2.11 Immunity Requirements.2.4 Air HumidityThe frequency converter has been designed to meet theIEC/EN 60068-2-3 standard, EN 50178 pkt. 9.4.2.2 at 50 °C.2.5 Aggressive EnvironmentsA frequency converter contains many mechanical andelectronic components. All are to some extent vulnerableto environmental effects.CAUTIONThe frequency converter must 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 frequency converter.Degree of protection as per IEC 60529The safe stop function can only be installed and operatedin a control cabinet with degree of protection IP54 orhigher (or equivalent environment) to avoid cross faultsand short circuits between terminals, connectors, tracks,and safety-related circuitry caused by foreign objects.Liquids can be carried through the air and condense in thefrequency converter and can cause corrosion ofcomponents and metal parts. Steam, oil, and salt water cancause corrosion of components and metal parts. In suchenvironments, use equipment with enclosure rating IP54/IP55. As an extra protection, coated printed circuit boardscan be ordered as an option.Airborne Particles such as dust can cause mechanical,electrical, or thermal failure in the frequency converter. Atypical indicator of excessive levels of airborne particles isdust particles around the frequency converter fan. In dustyenvironments, use equipment with enclosure rating IP54/IP55 or a cabinet for IP00/IP20/NEMA 1 equipment.In environments with high temperatures and humidity,corrosive gases such as sulphur, nitrogen, and chlorinecompounds cause chemical processes on the frequencyconverter components.Such chemical reactions damage the electroniccomponents quickly. In such environments, mount theequipment in a cabinet with fresh air ventilation, keepingaggressive gases away from the frequency converter.An extra protection in such areas is a coating of theprinted circuit boards, which can be ordered as an option.NOTICEMounting frequency converters in aggressiveenvironments increases the risk of stoppages and consid-erably reduces the life of the converter.Before installing the frequency converter, check theambient air for liquids, particles, and gases by observingexisting installations in this environment. Typical indicatorsof harmful airborne liquids are water or oil on metal parts,or corrosion of metal parts.Introduction Design GuideMG20Z202 Danfoss A/S © Rev. 06/2014 All rights reserved. 132 2