Key facts
Start here
Toshiba VF-AS3 RS485 Communication Function Instruction Manual
This instruction manual details the RS485 communication function embedded in the TOSVERT VF-AS3 inverter. It explains how to connect the communication connector, select between TOSHIBA inverter protocol and MODBUS-RTU protocol, and configure related parameters such as baud rate and parity bits.
The document provides specific instructions for transmission specifications, wiring diagrams, and data formats for both ASCII and Binary modes. It also covers advanced features like inverter-to-inverter communication, control through communication, and troubleshooting common issues.
Toshiba VF-AS3 specifications
| Communication Interface | 2-wire RS485 communication port |
|---|---|
| Optional Interface | 2-wire/4-wire RS485 communication port |
| Supported Protocols | TOSHIBA inverter protocol and MODBUS-RTU protocol |
| Data Access Unit | Word (16 bits) |
| Hexadecimal Range | 0 to FFFFH |
Source: Toshiba VF-AS3 RS485 Communication Function Instruction Manual
All Toshiba VF-AS3 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
Can Ethernet be connected to the RS485 communication connector?
No, do not connect Ethernet to the RS485 communication connector as it can result in malfunction.
From: Toshiba VF-AS3 RS485 Communication Function Instruction Manual
Can the communication cable be connected or disconnected while power is ON?
No, do not connect or disconnect the communication cable when power is ON as it can result in malfunction.
From: Toshiba VF-AS3 RS485 Communication Function Instruction Manual
What is the life of the EEPROM in the VF-AS3?
The Life of EEPROM is approximately 100,000 times.
From: Toshiba VF-AS3 Inverter Embedded Ethernet Function Manual
Can I connect an RS485 cable to the Ethernet port?
No, do not connect RS485 communication cable into Ethernet port as it will result in failure.
From: Toshiba VF-AS3 Inverter Embedded Ethernet Function Manual
What types of motors can this inverter drive?
This inverter is designed to control the speeds of three-phase induction motors, interior permanent magnet synchronous motors (IPMSMs), and surface permanent magnet synchronous motors (SPMSMs).
Can this inverter be used with single-phase motors?
No, this inverter cannot drive a single-phase motor.