E6581315

„Relating communication parameters

Following parameters should be set or changed if necessary.

Baud rate (, )... Shipment setting = : 19200bps

Baud rate of all inverters in the network (master and slave) should be same network.

Parity () ... Shipment setting = : Even parity

Parity of all inverters in the network (master and slave) should be same network.

Communication time-out time() ... Shipment setting = 

Operation is continued by the last received command value in the case of a communication break- down. To stop the operation of inverter, provide a communication time-out time (ex. = sec- ond) to the slave inverters. The master inverter does not trip even though the communication break- down happens. To trip the master inverter, provide an interlock mechanism by installing a FL fault relay point or the like from the slave side.

Frequency point selection (, )

Adjusted to the system.

See chapter “6.1 Speed proportional control” for details.

„Setting example of parameters (2-wire RS485 communication)

Parameters relating to the master side (example)

 Master (transmission of output frequency

(%)(100% at FH))

 Selection of communication protocol (Toshiba inverter protocol)

 Communication baud rate (ex. 19200bps)

 Parity (even parity)



Example: Panel



Example: RR/S4 input

<During torque control>

 Master (sends a torque command)

Parameters relating to the slave side (example)

 Slave (If the master inverter trips, all slave inverters stop operating.)

 Selection of communication protocol (Toshiba inverter protocol)

 Communication time-out (ex. 1 second)  Communication baud rate (same to the master side)  Parity (same to the master side)

 Terminal block (ex. Driven by F, ST)

( Run and stop of operation is controlled with the frequency reference value by setting the “run frequency”.)

 Operation panel RS485 (2-wire) communication input



2-wire RS485

 

?

Adjusted to the system

Point 1 setting (%)



?

Ditto

Point 2 frequency (Hz)



?

Ditto

Point 2 setting (%)



?

Ditto

Point 2 frequency (Hz)

<During torque control>

 RS485 communication input

 Load sharing gain input mode selection (ex. Operation panel input enabled)

 Panel load sharing gain (ex. Sharing of half of the com- mand value)

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Toshiba VF-AS1 Series, RS485 instruction manual Parameters relating to the slave side example

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.