Mitsubishi Electric QD75MH2 MELSEC-Q Series Positioning Module

Description

Designed for high-speed, high-accuracy motion control, the QD75MH2 is a 2-axis positioning module engineered for seamless integration with the Mitsubishi Electric MELSEC-Q Series PLC platform. This module facilitates precise motion profiles by managing up to 2 independent axes of motion. By utilizing high-speed serial communication via the SSCNET III interface, the module establishes a direct, noise-immune fiber-optic connection with compatible servo amplifiers, minimizing wiring complexity and improving signal integrity over long distances.

The QD75MH2 positioning module is optimized for complex motion paths, supporting up to 600 positioning data points per axis. With an operation cycle of 1.77 ms, it delivers rapid response times and high-precision synchronization required for modern automated machinery. External interface signals, including limit switches and manual pulse generator inputs, are processed directly on-module to ensure immediate execution of safety and positioning commands.

Features

• Controls up to 2 independent motion axes per module.
• Stores up to 600 positioning data points per axis for complex motion profiles.
• Fast operation cycle of 1.77 ms for high-speed system response.
• High-speed serial communication interface (SSCNET III) for direct connection to servo systems.
• Dedicated 24VDC forced stop input (1 point per module) for safety integration.
• Supports manual pulse generator interface (A-phase/B-phase, 5VDC, 1 point per module) for manual positioning adjustments.

Applications

• Packaging and labeling machinery requiring precise synchronization.
• Material handling and automated gantry systems.
• Assembly lines and pick-and-place robotics.
• Semiconductor manufacturing and wafer handling equipment.

Technical Specifications

Connections and Interfaces

Installation Guidelines

• Ensure the PLC base unit power supply is completely switched off before mounting or removing the QD75MH2 module.
• Securely fasten the module to the MELSEC-Q series base unit using the module fixing hook and module fixing screw.
• Use only specified fiber-optic cables for the SSCNET III connection to prevent signal attenuation and communication errors.
• Route the external I/O signal cables and manual pulse generator lines away from high-voltage power cables to minimize electromagnetic interference.