Inv-No | Toshiba TOSVERT VF-AS1 specification

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E6581315

2) Error Processing (Binary mode)

In case an error occurs, communication error command (4EH(N) or 6EH(n)) and the error type num- ber is returned to the computer in addition to the checksum.

Omissible

(3.5bytes

“/”

INV-NO

Norn

DATA

SUM

(3.5bytes

Blank)

(2FH)

1 byte

(4EH)(6EH)

2 bytes

1 byte

Blank)

Checksum area

Not omissible

“N” or “n” (1 byte)

: Communication error command. Also for check during an inverter trip (includes standing

by for retrying and trip holding). “4EH (N)” when normal, “6EH (n)” during an inverter trip.

DATA (2 bytes)

: Error code (0004)

0004

: Checksum error (The checksum does not match)

No return : Command error, format error (specified number of bytes is not received in 1sec,

or parity error, overrun error or framing error), inverter number mismatch, and

inverter number other than 00H in broadcast communication.

Examples

Computer → Inverter

: 2F 58 02 05 C4 00 17 70 D8

Inverter → Computer

: 2F 4E 00 04 81 ... Checksum error

16

Image 17

Toshiba TOSVERT VF-AS1 instruction manual Inv-No

Contents

E6581315② Tosvert VF-AS1 Series RS485 Communication Function E6581315 Read first Safety precautions Contents Bit Word General outlines of the communication functionBIT15 BIT8BIT7 BIT0 BIT2 Data transmission specifications MOUBUS-RTU Communication protocolAbout the handling of received frames Toshiba Inverter Protocol Binary mode 2FH Data transmission format Data transmission format used in Ascii modeINV-NO CMD Data 28H Bytes Checksum area 5bytes Blank Data SUM INV-NO Data transmission format used in binary mode Returned for the 57H W and 50H P commands Command receivedByte Bytes Sum 1 bytes Checksum not omissible 00H to FFH 2FH Byte 4EH6EH Bytes Norn Transmission format of Block Communication Page Bytes Blank Start Code INV-NO Dummy data is required for this command CommandsReads the data with the specified communication number Block communication Computer Inverter RFE03077BCR RFE03CRPage Communication There is no communication number that matches Transmission errorsFormat error Data transmission format does not match Broadcast communication function VF-AS1 Ascii mode Computer → Inverter Inverter → Computer Examples of the use of communication commandsFrom the computer H = 24d  trip status RFC90CR Examples of Communication programs Next =LENS$ For I=1 to LInput #1,B$ Goto Print #1,B$ 160 T=TIMER COUNT=TIMER-TIf Count 0 then T=TIMER Page Text2.Text = Text1.Text = End Sub End IfMSComm1.Output = Text2.Text & Chr13 End Sub Inverter number  MODBUS-RTU protocol CRC Read commandMODBUS-RTU transmission format Blank Command 1 byte Write command5bytes Blank Command 1 byte Text size is 8 bytes fixed Inverter CRC Generation Error codesBit counter = End Return CRC Inter-drive communication Never use pin-7 P11 QWiring 4-wire RS485 communication） E6581315 QWiring 2-wire RS485 communicationPage Parameters relating to the slave side example =0.01% Proportional control of speed 90.00Hz 45.00Hz Slave 100.00Hz 00%Slave 100.00Hz1 00% 80.00Hz 40.00Hz INV-NO 1 byte Inverter number Transmission format for inter-drive communication 0OFF Communication parameters MODBUS-RTU Inverter number Baud rate,  , Parity  PC → INV „ Timer Time-out period Computer linkMaster INV To Slave INV INV → PC PC → INV Use this function for the following case Send waiting time , Free notes Communication commands commands from the computer Commands and monitoring from the computerPI OFF OFF Forcibly braked Preliminary excitation Electric Power quantityBrake release B Braking answer BA Wire RS485 communication FA32 „ FM analog output FA51 „ Terminal board output data FA50„ AM analog output FA52 Output terminal no Specified data output Unit 0.01% N·m Monitoring from the computerRFD00CR RES „ Input terminal board status FD06, FE06Input terminal function selection 9 f119 BIT15 „ Output terminal board status FD07, FE07 ST=ON ST=OFF „ Inverter operating status 1 FD01, FE01 „ Inverter operating status 3 FD49, FE49 „ Inverter operating status 2 FD42, FE42 Preset speed operation „ Inverter operating command mode status FD45, FE45„ Inverter operating frequency mode status FD46, FE46 Bit Specifications Remarks „ Alarm information monitor FC91„ Cumulative operation time alarm monitor FE79 E6581315 Model Data „ Inverter model capacity code FB05 Utilizing panel LEDs and keys by communication LED setting by communicationParameter Name Range Setting „ Block Communication Function for LED Display Blank Ascii LED display data code 00H-1FH are blank FA10=1 Key utilization by communicationFA10=0 Parameter data ROM EEPPage FE02 Frequency command value 01Hz Alarm codeFE19 Torque command FE29 Input power FE84 Binary input value option Tion FE80 Cumulative power on timeE6581315 FD50 Light-load high-speed torque 01% Can Appendix 1 Table of data codesSUB ESC Response time „ Data transmission time Appendix 2 Response time VF-A7 Appendix 3 Compatibility with the communication function Appendix 4 Troubleshooting Appendix 5 Connecting for RS485 communication RXB RXATXA TXB