Danfoss AHF 005 Operating Instructions Manual

Also see for VLT AHF 005: Instruction manual Operating instructions Design guide Design guide

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Danfoss AHF 005 Operating Instructions Manual Manual pdf 23 page image

The maximum rating of the over temperature contactor is 250V AC and 10A.The switch must be used to prevent damage to the filter caused by over temperature.4.1.7 Operation on Different Mains TypeMains type Operation of the filter moduleTN/TT Directly grounded star point AllowedTN Indirectly grounded star point AllowedIT Isolated net star/delta point AllowedTable 4.11: Different mains typesThe filter has been designed completely symmetrically for three phase operation and without reference to the star point or protective earth.4.1.8 Typical Installation in a Panel or Other EnclosuresTo avoid high frequency noise coupling keep a minimum distance of 150 mm (5.91 inches) to:a) mains/supply wiresb) motor wires of frequency converterc) control- and signal wires (voltage range < 48 V)To obtain low resistive HF-connections, grounding, screening and other metallic connections (e. g. mounting plates, mounted units) should have a surfaceas large as possible to metallic ground. Use grounding and potential equalisation wires with a cross section as large as possible (min. 10mm²) or thickgrounding tapes.Use copper or tinned copper screened wires only, as steel screened wires are not suitable for high frequency applications. Connect the screen with metalclamps or metal glands to the equalisation bars or PE-connections.Inductive switching units (relay, magnetic contactor etc.) must always be equipped with varistors, RC-circuits or suppressor diodes.AHF 005/010 Operating Instructions 4 InstallationMG.80.C2.02 - VLT® is a registered Danfoss trademark 234