Toshiba Tosvert RS485 User Manual

E6581315②TOSVERT VF-AS1 SeriesRS485 Communication FunctionInstruction Manual   * The contents of this manual are subject to change without notice.© TO

E65813159• Data returned when data is not processed normally (ASCII mode)In case an error occurs, communication error command (4EH(N) or 6EH(n)) and

E6581315104.1.2. Data transmission format used in binary modeA communication number is used to specify a data item, data is written in hexadecimal fo

E658131511 Inverter → computer (binary mode)At time of broadcast communication of the binary mode, returning of data is not executed except forthe in

E6581315122) Error Processing (Binary mode)In case an error occurs, communication error command (4EH(N) or 6EH(n)) and the error type num-ber is retur

E6581315134.1.3. Transmission format of Block CommunicationWhat is block communication?Data can be written in and read from several data groups set

E658131514 Block Write 1, 2Select data, which is desired to be written in block communication, in block write Data 1 and 2 Pa-rameters (, ).

E658131515 Inverter → ComputerAt time of broadcast communication of the binary mode, returning of data is not executed except forthe inverter to be r

E6581315162) Error Processing (Binary mode)In case an error occurs, communication error command (4EH(N) or 6EH(n)) and the error type num-ber is retur

E6581315174.2. CommandsHere are the communication commands available.Command FunctionR command Reads the data with the specified communication number

E658131518 P (50H) (RAM*1 write)This command is used to rewrite data into the parameter specified using a communication number.It writes data into t

E65813151Read firstSafety precautionsThis manual and labels on the inverter provide very important information that you should bear inmind to use the

E658131519When Command “s” (lowercase letter) is received, the slave side judges that the master side istripped and operates in accordance with the in

E6581315204.3. Transmission errors Table of error codesError name Description Error codeImpossible to exe-cuteThe command is impossible to execute,

E6581315214.4. Broadcast communication functionBroadcast communication function can transmit the command (write the data) to multiple invertersby on

E658131522In broadcast communication, only the representative inverter in each block returns data to the hostcomputer. However, you can make the repre

E6581315234.5. Examples of the use of communication commandsHere are some examples of the use of communication commands provided for the VF-AS1 serie

E6581315244.6. Examples of Communication programsAccording to the hardware configuration of the computer used, select a serial output port. To use a

E658131525Ex. 2: BASIC program for executing an input command with checksum (RS232C, ASCII mode)(Toshiba version of Advanced BASIC-86 Ver. 3.01.05J)◊

E658131526Ex. 3 BASIC program for communication tests (RS232C, ASCII mode)(Toshiba version of Advanced BASIC-86 Ver. 3.01.05J)◊ Accessing a paramet

E658131527Ex. 4 A VisualBaisc program for the ASCII mode communication (VisualBaisc is the registered trademark of the U.S. microsoft company

E6581315283)The description of the codePrivate Sub Form_Load() Form1.Show '***************************************************************

E65813152Contents1. General outlines of the communication function...

E6581315295. MODBUS-RTU protocolThe MODBUS-RTU protocol of VF-AS1 supports only part of the MODBUS-RTU protocol. Onlytwo commands are supported,

E6581315305.1. MODBUS-RTU transmission formatMODBUS-RTU sends and receives binary data without a frame-synchronizing start code and de-fines the bla

E6581315315.1.2. Write command (06) Computer → Inverter *The text size is 8 bytes fixed.InverterNo.CommandCommu-nicationNo. (high)Commu-nicationNo

E6581315325.2. CRC Generation“CRC” is a system to check errors in communication frames during data transmission. CRC iscomposed of two bytes and has

E658131533<Notes>Speed command can be transmitted but the run / stop signal is not issued. Slave station should have an indi-vidual stop signal

E658131534QWiring (2-wire RS485 communication)MasterRXD+/TXD+RXD-/TXD-SGCN1Pin-4Pin-5Pin-8(Pin-3)Straight StraightTerminating resistance120Ω-1/2WStrai

E658131535 Setting of parameter●Protocol selection (, ) Shipment setting: 0 (TOSHIBA)Protocol setting with all inverters (both master and

E658131536 Relating communication parametersFollowing parameters should be set or changed if necessary.• Baud rate (, )... Shipment setting

E6581315376.1. Proportional control of speedProportional control of frequency can be performed in two ways: control by selecting frequencypoints and

E658131538• If the “Frequency point selection” function is disabled (=)The operation frequency (frequency command value) of the inverters are cal

E658131531. General outlines of the communication functionThis manual explains the RS485 communication function provided for the TOSVERT VF-AS1 seri

E6581315396.2. Transmission format for inter-drive communicationData type is handled in hexadecimal notation and the transmission characters are tre

E6581315407. Communication parametersThe settings of communication-related parameters can be changed from the operation panel andthe external control

E658131541Com-munica-tionNumber.Title Function Adjustment range UnitDefaultsettingValid Reference0826Inverter-to-invertercommunicationsetting (4-w

E6581315427.1. Baud rate(, ) , Parity ()•Communication baud rate and parity bit should be uniform inside the same network.•This parameter

E6581315437.3. Communication time-out time (), Communication time-out action (f804)The timer function is mainly used to detect a break in a cable

E6581315447.4. Send waiting time (, )Use this function for the following case:When the data response from the inverter is too quick after th

E6581315458. Commands and monitoring from the computerAcross the network, instructions (commands and frequency) can be sent to each inverter and the

E658131546 Communication command2 (Communication Number : FA20, FA22)This command is enabled only when the communication command is enabled. Set

E658131547 Frequency setting from the computer “Communication Number: FA01, FA05”Setting range: 0 to maximum frequency (fh)This frequency command

E658131548 Terminal board output data (FA50)The output terminal board on each inverter can be directly controlled with the computer.To use this func

E658131542. Data transmission specifications Items SpecificationsTransmission scheme Half-duplexSynchronization scheme Start-stop synchronizationComm

E6581315498.2. Monitoring from the computerThis section explains how to monitor the operating status of the inverter from the computer. Monitoring o

E658131550 Input terminal board status (FD06, FE06)Input terminal board status (current status): “Communication Number FD06”Input terminal board sta

E658131551 Output terminal board status (FD07, FE07)Output terminal board status (current status): “Communication Number FD07”Output terminal board

E658131552 Inverter operating status 1 (FD01, FE01)Inverter status 1 (current status): Communication Number FD01Inverter status 1 (status immediatel

E658131553 Inverter operating status 2 (FD42, FE42)Inverter status 2 (current status): Communication Number FD42Inverter status 2 (status immediatel

E658131554 Inverter operating command mode status (FD45, FE45)The monitor of the command mode that the present condition is enabledCommand mode stat

E658131555 Alarm information monitor (FC91)Bit Specifications 0 1Remarks(Code displayed on the panel)0 Over-current alarm Normal Alarming  flicke

E658131556 Trip code monitor (current status: FC90: historic records: FE10 to FE13)CodeData (hexadeci-mal number)Data(decimalnumber)Descriptionnerr0

E658131557e-2438 56 Option 2 errore-2539 57 Stop position retaining errore-263A 58 CPU2 faultetn154 84  tuning erroretn255 85  tuning erroretn

E6581315588.3. Utilizing panel (LEDs and keys) by communicationThe VF-AS1 can display data that is not related to the inverters through an external co

E658131553. Communication protocolThis communication protocol supports the TOSHIBA Inverter Protocol and part of MODBUS-RTUprotocol.Select the desire

E658131559 Block Communication Function for LED DisplayTo display LED data for ASCII display that is synchronized to each digit, set data for each d

E658131560 ASCII LED display data code (00H-1FH are blank.)Hex Code Display Char. Hex Code Display Char. Hex Code Display Char. Hex Code Display

E6581315618.3.2. Key utilization by communicationThe VF-AS1 can use the panel keys on the inverters through external communication. Key Monitoring P

E6581315629. Parameter dataExplanation of parameters for VF-AS1 series is described here. For communication purposes, seethe parameter list on inverte

E658131563 Command parametersFor those parameters that contain data only in the RAM and not in the EEPROM, their data return toinitial values when th

E658131564＊1: Enable the communication command or communication frequency setting before setting theseparameters are set. Otherwise, the parameters w

E658131565 Monitor parameters *These Parameters are read-only (monitor-only) parameters.Communication No.CurrentvalueTrip data heldFunction

E658131566FD50 − Light-load high-speed torque 1 0.01%FD51 − Light-load high-speed torque 2 0.01%− FE60 MY monitor 1 −− FE61 MY monitor 2 −− FE62 MY mo

E658131567Appendix 1 Table of data codes• JIS (ASCII) codesHigher ordeLower order0 1 2345670 NUL TC7(DLE) (SP)０＠Ｐ、ｐ1TC1(SOH) DC1!１ＡＱａｑ2TC2(STX) DC2２Ｂ

E658131568Appendix 2 Response timeThe communication response time can be calculated from data communication time and inverterprocessing time. When wi

E658131564. TOSHIBA Inverter ProtocolSelect “TOSHIBA” (, =) in the communication protocol selection parameters.“TOSHIBA” (, =) i

E658131569Appendix 3 Compatibility with the communication functionof the VF-A7To provide consistency in communication procedures, the communication fu

E658131570Appendix 4 TroubleshootingIf a problem arises, diagnose it in accordance with the following table before making a service call. Ifthe proble

E658131571Appendix 5 Connecting for RS485 communication Connector diagram for 2-wire RS485 communication                            Connecting dia

E658131572 Connector diagram for 4-wire RS485 communication                            Connecting diagram for 4-wire RS485 communication* When usi

E658131574.1. Data transmission format Note: The term “trip status” used in this manual includes retry waiting status and trip retention status.4.

E65813158 Inverter → computerAt time of broadcast communication, returning of data is not executed, except for the inverters to bereturned, when the