E6581315
2
Contents
1. General outlines of the communication function.........................................................................................................3
2. Data transmission specifications................................................................................................................................ 4
3. Communication protocol.............................................................................................................................................5
3.1. About the handling of received frames...............................................................................................................5
4. TOSHIBA Inverter Protocol.........................................................................................................................................6
4.1. Data transmission format................................................................................................................................... 7
4.1.1.Data transmission format used in ASCII mode......................................................................................... 7
4.1.2.Data transmission format used in binary mode ......................................................................................10
4.1.3.Transmission format of Block Communication ....................................................................................... 13
4.2. Commands.......................................................................................................................................................17
4.3. Transmission errors......................................................................................................................................... 20
4.4. Broadcast communication function.................................................................................................................. 21
4.5. Examples of the use of communication commands.........................................................................................23
4.6. Examples of Communication programs........................................................................................................... 24
5. MODBUS-RTU protocol............................................................................................................................................29
5.1. MODBUS-RTU transmission format.............................................................................................................. 30
5.1.1.Read command (03)............................................................................................................................... 30
5.1.2.Write command (06) ...............................................................................................................................31
5.2. CRC Generation...............................................................................................................................................32
5.3. Error codes.......................................................................................................................................................32
6. Inter-drive communication........................................................................................................................................ 33
6.1. Proportional control of speed........................................................................................................................... 37
6.2. Transmission format for inter-drive communication......................................................................................... 39
7. Communication parameters..................................................................................................................................... 40
7.1. Baud rate(, ) , Parity ()................................................................................................ 42
7.2. Inverter number().................................................................................................................................42
7.3. Communication time-out time (

), Communication time-out action (
f804
)
...............................................................43
7.4. Send waiting time (, ).............................................................................................................. 44
7.5. Free notes()......................................................................................................................................... 44
8. Commands and monitoring from the computer........................................................................................................ 45
8.1. Communication commands (commands from the computer).......................................................................... 45
8.2. Monitoring from the computer.......................................................................................................................... 49
8.3. Utilizing panel (LEDs and keys) by communication......................................................................................... 58
8.3.1.LED setting by communication ............................................................................................................... 58
8.3.2.Key utilization by communication ........................................................................................................... 61
9. Parameter data.........................................................................................................................................................62
Appendix 1 Table of data codes........................................................................................................................................67
Appendix 2 Response time............................................................................................................................................... 68
Appendix 3 Compatibility with the communication function of the VF-A7......................................................................... 69
Appendix 4 Troubleshooting............................................................................................................................................. 70
Appendix 5 Connecting for RS485 communication...........................................................................................................71
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