
APPLICATIONNOTEAN‐BEI‐E2‐038 Date:15/02/12
AN‐BEI‐E2‐038ModbusRTUControlandRegisterMapping
4
ControlandStatusRegisterDescriptions:
Readandwriteregisters
Register1:Drivecommand
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Highbyte Lowbyte
Bit0: Run/Stopcommand:Setto1toenablethedrive.Setto0tostopthedrive.
Bit1: Faststoprequest.Setto1toenabledrivetostopwith2
nd
decelerationramp.
Bit2: Resetrequest.Setto1inordertoresetthedriveifdriveisundertripcondition.
Usermustclearthisbitwhendriveisundernormalconditiontopreventun‐expectedreset.
Bit3: Coaststoprequest.Setto1toissueacoaststop
command.
For normal operation, Bit 3 has the highest priority, bit 0 has the lowest priority (bit 3>bit 1>bit 0). For example if user set
commandas0x0009,drivewilldoacoaststopratherthanrun.Fornormalrun/start,justsetthisregisterto1.
Note that stat/stop(bit 0), fast
stop(bit 1) and coast stop(bit 3) only works if P‐31= 0 or 1. Otherwise, start/stop function is
controlledbydrivecontrolterminals.Resetfunction(bit2)worksallthetimeaslongasdriveisoperatedunderModbuscontrol
mode(P‐12=3or4).
Register2:speedreferencesetup
This register holds the speed reference value with one decimal place (200 = 20.0Hz). The maximum speed reference value is
limitedbyP‐01.
Register4:Acc/Decrampsetup
This register specifies the drive acceleration and deceleration ramp time. The same value is applied simultaneously to the
accelerationanddecelerationramptimes.ThisregisterisonlyactivewhenP‐12=4.
Readonlyregisters
Register6:Drivestatusanderrorcode
Highbytegivesdriveerrorcode.(Validwhendrivetripped,seeappendixfordetails)
Lowbytegivesdrivestatus (0:drivestopped,1:driverunning,2:drivetipped)
Register7:Motorspeedinformation
Thisregistergivesmotorspeedinformation.ThedataisinHzandwithonedecimalplace(i.e.234=23.4Hz)
Register8:Motorcurrent
Thisregistergivesmotorcurrentinformation.ThedataisinAmpwithonedecimalplace(i.e.87=8.7A)
Register11:Digitalinputstatus
Thevalueinthisregisterrepresentsthedriveterminaldigitalinputstatus(Digitalinput1to4).Lowestbitindicatesdigitalinput
1status.
Komentarze do niniejszej Instrukcji