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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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