E6581315

„Inverter → computer

At time of broadcast communication, returning of data is not executed, except for the inverters to be returned, when the inverter number is not matched, and the inverter number has only one character. This is because there will be a risk of that the returned data may be deformed.

„Data returned when data is processed normally (ASCII mode)

Omissible in one-to-one communication

Omissible

 

 

 

 

(3.5bytes

Blank)

"("

INV-NO

CMD

Communication No.

(28H)

2 bytes

1 byte

4 bytes

Checksum area

DATA

0 to 4 bytes

"&"

(26H)

SUM

2 bytes

")"

(29H)

CR

(0DH)

(3.5bytes

Blank)

Omissible

1. “(“ (1 byte)

: Start code in ASCII mode

2.INV-NO (2 bytes) : Inverter number (omitted if it is not found in the data received) ... 00 (30H, 30H) to 99 (39H, 39H)

If the inverter number matches up with that specified using a parameter, data will be return- ed to the computer. In broadcast communication, only the destination inverter (with a num- ber matching up with the smallest effective number) returns data to the computer.

In broadcast communication, no data is returned from any inverters except the inverter bearing a number that matches up with the smallest effective number.

Ex.: (*2R0000) CR -> (02R00000000) CR)

Data is returned from the inverter with the number 2 only, but no data is returned from inverters with the number 12, 22 ....

3. CMD (1 byte)

: Command ... The command is also used for a check when an inverter is tripped.

 

Under normal conditions... The uppercase letter R, W or P is returned, depending on the

 

command received: R, W or P command.

 

When an inverter is tripped... The lowercase letter r, w or p is returned, depending on the

 

command received: R, W or P command.

 

(The command received is returned with 20H added to it.)

4. Communication No.(4 bytes) :

The communication number received is returned.

5.Data (0 to 4 bytes): Data ... The data read in is returned for the R command, while the data received is returned for the W and P commands. If the data received is composed of less than 4 digits, it will be converted into 4-digit data and returned.

Ex.: (W123412) CR → (W12340012) CR)

6.

“&” (1 byte)

: Checksum discrimination code (omitted if it is not found in the data received)

7.

Sum (2 bytes)

: Checksum ... Omitted if no checksum discrimination code is found in the data received.

 

 

ASCII-coded value of the last two digits (4 bits/digit) of the sum of a series of bits (ASCII

 

 

codes) from the start code to the checksum discrimination code.

8.

“)” (1 byte)

: Stop code (omitted if it is not found in the data received)

9.

CR (1 byte)

: Carriage return code

8

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Toshiba VF-AS1 Series, RS485 instruction manual 5bytes Blank, 28H Bytes Checksum area
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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.
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