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

Page 2 Page 4
Page 3
Image 3
Toshiba VF-AS1 Series, RS485 instruction manual Contents
Page 2 Page 4

RS485, VF-AS1 Series specifications

The Toshiba VF-AS1 Series represents a significant advancement in the realm of variable frequency drives (VFDs), designed for various industrial applications that demand precision, efficiency, and reliability. With support for RS485 communication, the VF-AS1 Series fosters seamless integration into complex automation systems, making it the perfect choice for modern manufacturing environments.

One of the standout features of the Toshiba VF-AS1 Series is its versatile communication capabilities. The built-in RS485 port allows for easy connectivity with a range of devices, including PLCs (Programmable Logic Controllers) and HMIs (Human-Machine Interfaces). This ensures real-time monitoring and control of motor functions, enhancing operational efficiency and data analysis.

The VF-AS1 Series is engineered with advanced control technologies that provide exceptional motor performance. It incorporates vector control algorithms that optimize torque and speed regulation for both standard and permanent magnet motors. This results in precise motor control across a wide range of speeds and load conditions, ensuring optimum performance and energy savings.

Another noteworthy characteristic is its user-friendly interface. The VF-AS1 features a clear LCD display that allows for easy navigation and configuration. This intuitive design minimizes the learning curve for operators and technicians, facilitating quick setup and adjustments. Additionally, the series supports various programming options, catering to both novice users and experienced professionals.

Energy efficiency is a key priority in the design of the VF-AS1 Series. The drives are equipped with energy-saving features that help reduce overall power consumption and operational costs. With built-in sleep modes and dynamic energy feedback, these drives optimize energy usage based on demand, making them suitable for both constant and variable load applications.

In terms of safety and protection, the VF-AS1 Series incorporates various built-in safeguards, including overvoltage, undervoltage, and overcurrent protection. This comprehensive approach to safety not only protects the drive itself but also ensures the longevity of connected equipment.

Overall, the Toshiba VF-AS1 Series, with its robust feature set, advanced technologies, and focus on energy efficiency, proves to be a reliable choice for a wide range of industrial applications. Its integration of RS485 communication allows for enhanced connectivity and control, making it an excellent solution for modern automation needs.
Top Page Image Contents