Danfoss VLT 8000 AQUA Betriebsanleitung

VLT®2800, VLT®6000 HVAC and VLT®8000 AQUA Modbus RTU ContentsOverview...

VLT®2800, VLT®6000 HVAC and VLT®8000 AQUA Modbus RTU VLT 2800 Parameter Settings for ModbusCommunicationUsing the Modbus RTU Protocol requires setting

VLT®2800, VLT®6000 HVAC and VLT®8000 AQUA Modbus RTUModbus RTUProgramming571 Modbus communications timeout(M.BUS COM.TIME.)Value:10 ms - 2000 ms✭ 100

VLT®2800, VLT®6000 HVAC and VLT®8000 AQUA Modbus RTU VLT 6000 Parameter Settings for ModbusCommunicationUsing the Modbus RTU Protocol requires setting

VLT®2800, VLT®6000 HVAC and VLT®8000 AQUA Modbus RTUModbus RTUProgramming VLT 8000 Parameter Settings for ModbusCommunicationUsing the Modbus RTU Prot

VLT®2800, VLT®6000 HVAC and VLT®8000 AQUA Modbus RTU Network Configuration Remote Terminal UnitThe controllers are setup to communicate on theModbus n

VLT®2800, VLT®6000 HVAC and VLT®8000 AQUA Modbus RTUNetworkConfiguration Address FieldThe address field of a message frame contains 8 bits.Valid slave

VLT®2800, VLT®6000 HVAC and VLT®8000 AQUA Modbus RTU Parameter Handling Parameter HandlingPNU (Parameter Number) is translated from theregister addres

VLT®2800, VLT®6000 HVAC and VLT®8000 AQUA Modbus RTUParameterHandling Register Maps VLT 2800Note: the Holding Register number shown in the following t

VLT®2800, VLT®6000 HVAC and VLT®8000 AQUA Modbus RTU Register Maps VLT 6000Note: the Holding Register number shown in the following table must be tran

VLT®2800, VLT®6000 HVAC and VLT®8000 AQUA Modbus RTUParameterHandling Register Maps VLT 8000Note: the Holding Register number shown in the following t

VLT®2800, VLT®6000 HVAC and VLT®8000 AQUA Modbus RTU Software Version VLT 2800, VLT 6000 and VLT 8000195NA009.17VLT 2800 SeriesOperating instructionsS

VLT®2800, VLT®6000 HVAC and VLT®8000 AQUA Modbus RTU Process DataProcess Data is illustrated as coils in Modbus RTU. Status Coil Maps(128 coils total)

VLT®2800, VLT®6000 HVAC and VLT®8000 AQUA Modbus RTUParameterHandlingBit 04, Quick stop:Bit 04 = ’0’ causes a stop, in which the motor’sspeed is rampe

VLT®2800, VLT®6000 HVAC and VLT®8000 AQUA Modbus RTUBit Bit = 0 Bit =100 Control ready01 Drive ready02 Coasting stop03 No trip Trip04 Not used05 Not u

VLT®2800, VLT®6000 HVAC and VLT®8000 AQUA Modbus RTUParameterHandling Serial communication referenceThe serial communication reference is transferred

VLT®2800, VLT®6000 HVAC and VLT®8000 AQUA Modbus RTUBit Bit = 0 Bit =100 Preset ref. lsb01 Preset ref. msb02 DC braking03 Coasting stop04 Quick stop05

VLT®2800, VLT®6000 HVAC and VLT®8000 AQUA Modbus RTUParameterHandlingBit 12 = "1": Relay 2 is activated, providedControl word bits 11/12 has

VLT®2800, VLT®6000 HVAC and VLT®8000 AQUA Modbus RTUspeed reference. This may be the case, i.e. whenthe speed is ramped up/down at start/stop.Bit 08 =

VLT®2800, VLT®6000 HVAC and VLT®8000 AQUA Modbus RTUParameterHandling Present output frequencyThe value of the present output frequency of thefrequenc

VLT®2800, VLT®6000 HVAC and VLT®8000 AQUA Modbus RTU Supported Modbus RTU Function CodesThis section describes the following functionssupported by the

VLT®2800, VLT®6000 HVAC and VLT®8000 AQUA Modbus RTUSupported Modbus RTUFunction Codes QueryThe query message specifies the coil referencesto be force

VLT®2800, VLT®6000 HVAC and VLT®8000 AQUA Modbus RTUSafety - ModbusRTU176FA145.13VLT 8000 AQUAOperating InstructionsSoftware version: 1.5xThese Operat

VLT®2800, VLT®6000 HVAC and VLT®8000 AQUA Modbus RTUField Name Example (HEX)Slave Address 01Function 06Register Address HI 00Register Address LO 01Pre

VLT®2800, VLT®6000 HVAC and VLT®8000 AQUA Modbus RTUExceptionCodes Exception Codes Exception Code TablesWhen the frequency converter responds to the m

VLT®2800, VLT®6000 HVAC and VLT®8000 AQUA Modbus RTU Appendix A - ExamplesThe following examples illustrate differentModbus RTU commands.In case of ma

VLT®2800, VLT®6000 HVAC and VLT®8000 AQUA Modbus RTUAppendix A - ExamplesModbus message string:[01] [0F] [00] [00] [00] [20] [04] [3C] [04] [00] [00]

VLT®2800, VLT®6000 HVAC and VLT®8000 AQUA Modbus RTU EXAMPLE 4: Write Parameter 104Motor Frequency, with 60 Hz(DataType6: UINT16)(Conversion factor =

VLT®2800, VLT®6000 HVAC and VLT®8000 AQUA Modbus RTUAppendix A - ExamplesMessage sent to Modbus master from Modbus RTUByte 0 Byte 1 Byte 2 Byte 3 Byte

VLT®2800, VLT®6000 HVAC and VLT®8000 AQUA Modbus RTUVLT 2800195NA139.10Warning:It can be extremely dangerous to touch the electrical parts even when t

VLT®2800, VLT®6000 HVAC and VLT®8000 AQUA Modbus RTUSafety - ModbusRTUVLT 8000 AQUA176FA159.12 Warning:Touching the electrical parts may be fatal - ev

VLT®2800, VLT®6000 HVAC and VLT®8000 AQUA Modbus RTU Overview IntroductionThese operating instructions provide comprehensiveinstructions on the instal

VLT®2800, VLT®6000 HVAC and VLT®8000 AQUA Modbus RTUOverview VLT 2800, VLT 6000 and VLT 8000 with Modbus RTUThe frequency converter communicates in Mo

VLT®2800, VLT®6000 HVAC and VLT®8000 AQUA Modbus RTU Installation and SetupModbus RTU is a transmission protocol developed forprocess control systems.

VLT®2800, VLT®6000 HVAC and VLT®8000 AQUA Modbus RTUInstallation andSetup Hardware Setup VLT 2800The VLT 2800 control card does not have build-intermi