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Mitsubishi FX3U “Modbus RTU” Hitachi NE-S1 Tutorial

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Hello friends!
Mitsubishi FX3U PLC and Hitachi NE-S1 Inverter are two automation devices originating from Japan and they are used quite commonly in machines around the world and especially small machines originating from Japan.

Today will guide you to connect Mitsubishi FX3U and Hitachi NE-S1 together using Modbus RTU (RS485) Communication.

Mitsubishi FX3U & Hitachi NES1 “Wiring Diagram”

+ Need to use additional Module FX3U-485ADP-MB for PLC FX3U

Hitachi NE-S1 Modbus RTU Parameters Setting

In order for the FX3U PLC to control the Hitachi NES1 Inverter, we need to set the following communication parameters for the inverter

+ Parameters Setting

+ Hardware SW5 Selection

Hitachi NE S1 Registers Address Map

FX3U Modbus-RTU Example

+ FX3U Channel.2 Configuration

+ Write / Read Auto Distribution

+ VFD Frequency Setting

+ VFD Run/Stop Control

+ Forward/Reverse Control

+ VFD Reset Control

+ Read Data Output

Detailed Instruction Video


Related Software and Documents

+ Mitsubishi FX3U Programming Software Download
+ Hitachi NE S1 Inverter Manual PDF Download

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