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FX5U “Step Motor” Control Tutorial

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Hello Friends!
In the previous article, showed you how to use PLC FX3U to control Stepping Motor in the simplest way. Today I would like to continue to guide you to use another Mitsubishi PLC, FX5U to control Step Motor.

PLC Mitsubishi FX5U is an upgraded line of FX3U with many new features, so the configurations are also a small different from FX3U.

FX5U & Stepping Motor “Connection Diagram”

+ Depending on the type of Step Driver, we can control it with 5V or 24V, if controlled by 5V, we need a resistor R=2k2 (Ohm) to reduce the voltage.

+ DM542 Driver supports control from 5 to 24V

FX5U Position Control Configuration

FX5U Programming Instructions

>>> “Increment Pulse Output” Instruction

>>> “Absolute Pulse Output” Instruction

FX5U “Special Relays & Registers”
FX5U “Pulse Train Output” Setting

Below is the configuration table of FX5U axes (FX5U supports 4-axes control). I use Axis1 and configurator “1000 Pulses” = “1 Revolution”

PLC Programming Example

+ Control ON/OFF & Jog Process

+ FX5U Possition Control Example

Project Video Tutorial


Software for the Project

>>> Mitsubishi GX Works3 Software Free Download

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