E6581315

„P (50H) (RAM*1 write)

This command is used to rewrite data into the parameter specified using a communication number. It writes data into the RAM only. It cannot be used to write data into any read-only parameters. Each time an attempt to write data is made the inverter checks whether the data falls within the specified range. If this check reveals that the data falls outside the range, the inverter will reject it and return an error code.

-Ex.: Entering the emergency stop command (communication number: FA00) from the computer <ASCII mode>

Computer → Inverter

Inverter → Computer

 

(PFA009000)CR

(PFA009000)CR

…Command priority, emergency stop

 

 

command

<Binary mode>

 

 

Computer → Inverter

Inverter → Computer

 

2F 50 FA 00 90 00 09

2F 50 FA 00 90 00 09

 

„R (52H) (Data read)

This command is used to read the setting of the parameter specified using a communication num- ber.

-Ex.: Monitoring the electric current (communication number: FE03) <ASCII mode>

Computer → Inverter

Inverter → Computer

 

(RFE03)CR

(RFE03077B)CR

…Current: 1915 / 100 = 19.15%

<Binary mode>

 

 

Computer → Inverter

Inverter → Computer

 

2F 52 FE 03 82

2F 52 FE 03 07 7B 04

 

„G (47H) (Data read)

This command is used to read the parameter data specified using a communication number. Alt- hough this command is used for the previous model to control the operation of two or more inverters in binary mode through a two-wire RS485 network, the “R” command can also be used without problems for the VF-AS1 series.

To use the “G” command, however, dummy data (2 bytes) is needed. This command is available only in binary mode.

- Ex.: Monitoring the electric current (communication number: FE03)

Computer → Inverter

Inverter → Computer

2F 47 FE 03 00 00 77

2F 47 FE 03 07 7B F9

*In this example, the data 00H sent from the computer to the inverter is dummy data.

„S (53 H)/ s (73 H) Inter-drive communication command(RAM*1 Write)

This command is for using frequency command values in % (1 = 0.01%), instead of in Hz, and is for synchronous-proportional operation in inter-drive communication. This command can also be used in ordinary computer link communication.

When writing in the frequency command (FA01, FA05) is enabled and a parameter other than it is specified, a communication number error will result. Data is written in the RAM only and at this time the data check such as an upper limit and lower limit checking is not carried out.

Data is not returned from the inverters while this command is used. This command can be used only in the binary mode.

For the details of the format, see “6.2 Transmission format for inter-drive communication.”

Use (%) as the unit for frequency command values specified by the command S, instead of (Hz), and the receiving side converts units for frequency values to “Hz” in accordance with the point con- version parameter. The conversion formula is shown below.

Frequency command value (Hz) =

Point 2 frequency (F813) − Point 1 frequency (F812)

Point 2 (F814) − Point 1 (F811)

x (Frequency command value (%)

−Point 1 (F811) + Point 1 frequency (F812) 18

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Toshiba VF-AS1 Series, RS485 instruction manual RFE03CR, RFE03077BCR
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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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