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E6581222
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Contents
1. General outlines of the communications function........................................................................................................ 3
2. Data transmission specifications................................................................................................................................. 4
3. Communication protocol ............................................................................................................................................. 5
4. TOSHIBA Inverter Protocol......................................................................................................................................... 6
4.1. Data transmission formats.................................................................................................................................. 8
4.1.1. Data transmission formats used in ASCII mode ....................................................................................... 8
4.1.2. Data transmission formats used in binary mode ..................................................................................... 11
4.1.3. Transmission Format of Block Communication....................................................................................... 14
4.2. Commands....................................................................................................................................................... 18
4.3. Transmission errors.......................................................................................................................................... 21
4.4. Broadcast communications function................................................................................................................. 22
4.5. Examples of the use of communication commands.......................................................................................... 24
4.6. Examples of RS232C communication programs .............................................................................................. 25
5. MODBUS-RTU protocol............................................................................................................................................ 30
5.1. MODBUS-RTU transmission format .............................................................................................................. 32
5.1.1. Read command (03) ............................................................................................................................... 32
5.1.2. Write command (06) ............................................................................................................................... 33
5.2. CRC Generation............................................................................................................................................... 34
5.3. Error codes....................................................................................................................................................... 34
6. Inter-drive communication......................................................................................................................................... 35
6.1. Speed proportional control ............................................................................................................................... 38
6.2. Transmission format for inter-drive communication.......................................................................................... 39
7. Communications parameters ....................................................................................................
................................ 40
7.1. Communication baud rate() , Parity bit().................................................................................. 41
7.2. Inverter number()................................................................................................................................. 41
7.3. Timer function().................................................................................................................................... 42
7.4. Setting function of communication waiting time ()................................................................................ 43
7.5. Free notes() ......................................................................................................................................... 43
8. Commands and monitoring from the computer......................................................................................................... 44
8.1. Communication commands (commands from the computer) ........................................................................... 44
8.2. Monitoring from the computer........................................................................................................................... 47
8.3. Control of input/output signals from communication......................................................................................... 53
8.4. Utilizing panel (LEDs and keys) by communication.......................................................................................... 56
8.4.1. LED setting by communication................................................................................................................ 56
8.4.2. Key utilization by communication............................................................................................................ 59
9. Parameter data......................................................................................................................................................... 60
Appendix 1 Table of data codes........................................................................................................................................ 63
Appendix 2 Response time ............................................................................................................................................... 64
Appendix 3 Compatibility with the communications function of the VF-S9 ........................................................................ 65
Appendix 4 Troubleshooting.............................................................................................................................................. 66