Danfoss VLT 2800 Series Operating Instructions Manual

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Danfoss VLT 2800 Series Operating Instructions Manual Manual pdf 1 page image

VLT® Serie 2800 and VLT® Serie 6000 Modbus RTUå ContentsOverview ............................................................................................................. 5Introduction ............................................................................................................ 5About This Manual ................................................................................................. 5Assumptions .......................................................................................................... 5What You Should Already Know ............................................................................. 5Modbus RTU Overview .......................................................................................... 5VLT 2800 and VLT 6000 with Modbus RTU ............................................................ 6Installation and Setup .................................................................................. 7Network Connection ............................................................................................. 7Hardware Setup VLT 2800 ..................................................................................... 8Hardware Setup VLT 6000 ..................................................................................... 8EMC Precautions ................................................................................................... 8Modbus RTU Programming ....................................................................... 9VLT 2800 Parameter Settings for Modbus Communication ..................................... 9VLT 6000 Parameter Settings for Modbus Communication ..................................... 11Network Configuration ................................................................................. 13Remote Terminal Unit ............................................................................................. 13Modbus RTU Message Framing Structure .............................................................. 13Parameter Handling ....................................................................................... 16Parameter Handling ................................................................................................ 16Translation from Modbus RTU Protocol to FC Protocol ........................................... 16Register Maps VLT 2800 ........................................................................................ 17Register Maps VLT 6000 ........................................................................................ 18Process Data ......................................................................................................... 19Status Coil Maps .................................................................................................... 19Control Word Bit Descriptions for VLT 2800 ............................................................ 19Status Word Bit Description for VLT 2800 ............................................................... 21Control Word Bit Descriptions VLT 6000 ................................................................. 23Status Word Bit Descriptions VLT 6000 .................................................................. 24Serial communication reference .............................................................................. 25Present output frequency ....................................................................................... 26Supported Modbus RTU Function Codes ......................................... 27Exception Codes ............................................................................................. 31Exception Code Tables .......................................................................................... 31Appendix A - Examples ............................................................................... 32MG.10.S1.22 - VLT is a registered Danfoss trademark 1