Fuji Electric FRENIC-Mini RS485 Communication User Manual

This manual describes the RS485 communication function for the FUJI Electric FRENIC-Mini/VP series of variable frequency drives.

Brand: FUJI Motor
Category: Automation control Equipment
Document type: User Manual
Language: Chinese
Pages: 119
File format: PDF
File size: 3.4 MB
Updated: 01 October, 2023
MD5 checksum: ACE70AF311219F429392776BE607A81D
PDF: Fuji Electric FRENIC-Mini RS485 Communication User Manual PDF

About this manual

The manual explains how to connect the RS485 communication card to the inverter’s operation panel using RJ‑45 connectors, covering safety precautions, wiring steps, and installation requirements. It stresses the need to power off the equipment before any wiring work and warns against direct connection to RS‑232C ports.

Technical sections describe the Modbus RTU protocol, communication commands, function codes, data formats, and settings for reliable RS485 communication. Detailed examples of messages, error handling, and timing parameters are provided to assist users in configuring and troubleshooting the system. This manual is written in Chinese.

What's inside

Overview
Common Specifications
RS485 Connector Specifications
Wiring and Installation
Communication Switching
RS485 Settings
Modbus RTU Protocol
Fuji General Inverter Protocol
Function Codes and Data Formats
Safety Precautions

Specifications

RS485 connector type	RJ‑45 (combination socket)
RS485 interface compatibility	Not directly compatible with RS232C

Frequently asked questions

Can the RS485 connector be directly connected to an RS232C interface?

No, the RS485 connector cannot be directly connected to an RS232C interface.

What safety step must be taken before wiring the RS485 connection?

Ensure the power is OFF before performing any wiring or installation work.

Which communication protocol is used for RS485 in this manual?

The RS485 communication follows the Modbus RTU protocol.

Download PDF (3.4 MB)