IndexAAbbreviations........................................................................................... 4Acoustic Noise....................................................................................... 88Aggressive Environments.................................................................. 10Air Humidity........................................................................................... 10Alpha Numeric Display....................................................................... 54AnalogInputs.......................................................................................... 5, 87, 6Output.................................................................................................. 87Application Examples......................................................................... 15BBalancing Contractor.......................................................................... 21Better Control........................................................................................ 13Break-away Torque................................................................................. 5Building Management System, BMS............................................. 12Bypass Frequency Ranges................................................................. 18CCable Lengths And Cross Sections................................................. 86Caution....................................................................................................... 8CAV System............................................................................................. 17CE Conformity And Labelling............................................................. 9Central VAV Systems........................................................................... 15Changes Made................................................................................ 55, 61Closed Loop Set-up Wizard.......................................... 55, 28, 59, 60CO2 Sensor.............................................................................................. 17Coasting....................................................................................... 79, 5, 78Comparison Of Energy Savings....................................................... 12Condenser Pumps................................................................................ 19Connecting To Mains And Motor................................................... 49Constant Air Volume........................................................................... 17ControlCard, 10V DC Output...................................................................... 87Card, 24V DC Output...................................................................... 87Card, RS-485 Serial Communication......................................... 87Potential.............................................................................................. 22Structure Closed Loop.................................................................... 24Structure Open Loop...................................................................... 23Terminals............................................................................................. 53Word..................................................................................................... 77Controlling Fans And Pumps........................................................... 11Cooling Tower Fan............................................................................... 18Copyright, Limitation Of Liability And Revision Rights............. 3DDampers................................................................................................... 16DANGEROUS VOLTAGE......................................................................... 8Data Types Supported By The Frequency Converter.............. 68DC Brake................................................................................................... 78Decoupling Plate.................................................................................. 40Definitions................................................................................................. 5Differential Pressure............................................................................ 22DigitalInputs................................................................................................... 86Output.................................................................................................. 87DISCHARGE TIME..................................................................................... 8Disposal Instruction............................................................................... 9Drive Configurator............................................................................... 41EEarth Leakage Current........................................................................ 34ElectricalInstallation In General.................................................................... 48Overview............................................................................................. 47EMCDirective 89/336/EEC...................................................................... 10Precautions........................................................................................ 65EMC-Correct Electrical Installation................................................. 51Emission Requirements...................................................................... 31Energy Savings............................................................................... 13, 11Evaporator Flow Rate.......................................................................... 20Example Of Energy Savings.............................................................. 11Extreme Running Conditions........................................................... 35FFCProfile................................................................................................... 77With Modbus RTU............................................................................ 65Feedback Conversion......................................................................... 24Field Mounting...................................................................................... 47Flow Meter.............................................................................................. 21Freeze Output.......................................................................................... 5FrequencyConverter Hardware Set-up......................................................... 64Converter Set-up.............................................................................. 66Converter With Modbus RTU....................................................... 70Function Codes Supported By Modbus RTU.............................. 74Fuses.......................................................................................................... 50GGalvanic Isolation................................................................................. 34GeneralAspects Of EMC Emissions............................................................ 30Aspects Of Harmonics Emission................................................. 33Specifications.................................................................................... 86Index VLT HVAC Basic Drive Design GuideMG.18.C2.02 - VLT® is a registered Danfoss trademark 89