Beijer-electronics BFI-P2 V1.21 Uživatelský manuál stáhnout pdf (Strana 47)

UserGuideRevision1.121

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www.beijerelectronics.com

47

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9.2.2. ModbusControl&MonitoringRegisters

ThefollowingisalistofaccessibleModbusRegistersavailableintheDrive.

• WhenModbusRTUisconfiguredastheFieldbusoption,allofthelistedregisterscanbeaccessed.

• Registers1and2canbeusedtocontrolthedriveprovidingthatModbusRTUisselectedasthe

primarycommandsource(P1‐12=4)

andnoFieldbusOptionModuleisinstalledinthedriveOptionSlot.

• Register3canbeusedtocontroltheoutputtorquelevelprovidingthat

o ThedriveisoperatinginVectorSpeedorVectorTorquemotorcontrolmodes(P4‐01=

1or2)

o Thetorquecontrollerreference/limitissetfor‘Fieldbus’(P4‐06=3)

• Register4canbeusedtocontroltheaccelerationanddecelerationrateofthedriveprovidingthatFieldbusRampControlisenabled

(P5‐07=1)

• Registers6to24can

bereadregardlessofthesettingofP1‐12

Number

UpperByte LowerByte Read

Write

Notes

1

CommandControlWord R/W CommandcontrolwordusedtocontroltheDrivewhenoperatingwithModbusRTU.

TheControlWordbitfunctionsareasfollows:‐

Bit0:Run/Stopcommand.Setto1toenablethedrive.Setto0tostopthedrive.

Bit1:Faststoprequest.

Setto1toenabledrivetostopwith2

decelerationramp.

Bit2:Resetrequest.Setto1inordertoresetanyactivefaultsortripsonthedrive.

Thisbitmustberesettozerooncethefaulthasbeencleared.

Bit3:Coaststoprequest.Setto1toissueacoaststopcommand.

2 CommandSpeedReference R/W SetpointmustbesenttothedriveinHztoonedecimalplace,e.g.500=50.0Hz

3 CommandTorqueReference R/W Setpointmustbesenttothedrivein%toonedecimalplace,e.g.2000=200.0%

4

CommandRamptimes R/W Thisregisterspecifiesthedriveaccelerationanddecelerationramptimesusedwhen

FieldbusRampControlisselected(P5‐08=1)irrespectiveofthesettingofP1‐12.The

inputdatarangeisfrom0to60000(0.00sto600.00s)

6

Errorcode Drivestatus R Thisregistercontains2bytes.

TheLowerBytecontainsan8bitdrivestatuswordasfollows:‐

Bit0:0=DriveDisabled(Stopped),1=DriveEnabled(Running)

Bit1:0=DriveHealthy,1=DriveTripped

TheUpperBytewillcontaintherelevantfaultnumberintheeventofadrivetrip.

RefertosectionError!Referencesourcenotfound.foralistoffaultcodesand

diagnosticinformation

7 OutputFrequency R Outputfrequencyofthedrivetoonedecimalplace,e.g.123=12.3Hz

8 OutputCurrent R Outputcurrentofthedrivetoonedecimalplace,e.g.105=10.5Amps

9 OutputTorque R Motoroutputtorqueleveltoonedecimalplace,e.g.474=47.4%

10 OutputPower R Outputpowerofthedrivetotwodecimalplaces,e.g.1100=11.00kW

11 DigitalInputStatus R RepresentsthestatusofthedriveinputswhereBit0=DigitalInput1etc.

20 Analog1Level R AnalogInput1AppliedSignallevelin%toonedecimalplace,e.g.1000=100.0%

21 Analog2Level R AnalogInput2AppliedSignallevelin%toonedecimalplace,e.g.1000=100.0%

22 PreRampSpeedReference R Internaldrivefrequencysetpoint

23 DCbusvoltages R MeasuredDCBusVoltageinVolts

24 Drivetemperature R MeasuredHeatsinkTemperaturein°C

9.2.3. ModbusParameterAccess

AllUserAdjustableparameters(Groups1to5)areaccessiblebyModbus,exceptthosethatwoulddirectlyaffecttheModbuscommunications,

e.g.

• P5‐01CommunicationProtocolSelect

• P5‐02DriveFieldbusAddress

• P5‐03ModbusRTUBaudRate

• P5‐04ModbusRTUDataFormat

Allparametervalues

canbereadfromthedriveandwrittento,dependingontheoperatingmodeofthedrive–someparameterscannotbe

changedwhilstthedriveisenabledforexample.



WhenaccessingadriveparameterviaModbus,theRegisternumberfortheparameteristhesameastheparameternumber,

E.g.ParameterP1‐01=ModbusRegister101.

ModbusRTUsupportssixteenbitintegervalues,hencewhereadecimalpointisusedinthedriveparameter,theregistervaluewillbemultiplied

byafactoroften,

E.g.ReadValueofP1‐01=500,thereforethisis50.0Hz.



ForfurtherdetailsoncommunicatingwithDriveusing ModbusRTU,pleaserefertoyourlocaldistributororSalesPartner.

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