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„ Frequency setting from the computer “Communication Number: FA01, FA05”

Setting range: 0 to maximum frequency (fh)

This frequency command is enabled only when the frequency command by communication is en- abled. To make frequency commands from the computer valid, set the frequency setting mode se- lection parameter (fmod) to RS485 communication (communication No. 0004: 5 (2-wire RS485 communication input) or 6 (4-wire RS485 communication input) or select the “Command priority” option (bit 14 of FA00 and FA04: 1 (enabled)). In this case, frequency commands by communica- tion will be enabled independent of fmod setting.

However, enabled commands and frequencies are given the priority if “48 (49): Forced switching

from communication to local,” “56 (57): Forced continuous operation,” or “58 (59): Specified speed operation” is set by input terminal function selection (f11o to f118).

Once enabled, this frequency setting will be enabled till disable is set (0 setting), power is turned off or is reset, or factory default setting (typ) is selected.

Set a frequency by communication hexadecimal in Communication Number FA01, FA05. (1=0.01Hz (unit))

Example: Operation frequency 80Hz command by 2-wire RS485 communication (PFA011F40) CR 80Hz=80÷0.01=8000=1F40H

„ Torque command setting from the computer “2-wire RS485 communication: FA30,

4-wire RS485 communication: FA32

This section explains how to set a torque command value for inverters. The torque command value set here takes effect if torque commands from the computer are valid when the inverters are in tor- que control mode (in cases where torque control is selected with the terminal board or with a com- munication command when ( is set to 4 or 8).

To make torque commands from the computer valid, set the torque command selection parameter  (communication No. 0420) to 5 (2-wire RS485 communication input) or 6 (4-wire RS485 communication input). Once torque commands from the computer have been set, they remain valid until they are changed, the inverters is turned off or reset, or the parameter  for returning set- tings to their defaults is selected. (The settings of FA30 and FA32 are not stored in EEPROM. Therefore, they are cleared when the inverter is turned off or reset.)

When setting a torque for torque commands from the computer, specify a torque in hexadecimal (unit: 1=0.01%, two-wire RS485 communication: FA30 or four-wire RS485 communication: FA32).

Example: 50% torque command (PFA321388) 50%=50÷0.01=5000=1388H

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Toshiba VF-AS1 Series instruction manual Wire RS485 communication FA32
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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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