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E6581315

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

2

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Toshiba TOSVERT VF-AS1 instruction manual Contents