Mitsubishi Electric QD75P4N MELSEC-Q Series Positioning Unit

Description

Engineered for high-precision motion control within the MELSEC-Q PLC environment, the QD75P4N positioning module provides multi-axis control capabilities for complex automation tasks. This module manages up to four independent or interpolated axes, facilitating exact path trajectory and speed control for machinery automation.

Utilizing an open collector pulse train output, the QD75P4N coordinates smoothly with external servo drives and stepping motor amplifiers. It stores up to 600 positioning data points per axis, allowing for sophisticated multi-step operations without overloading the main CPU capacity. The unit supports both incremental and absolute position detection methods, making it adaptable to varied industrial field configurations.

Features

• Four-axis control capability supporting independent axis configuration and linear interpolation.
• Open collector pulse output structure reaching a maximum output rate of 200 kpulse/s.
• Rapid start response time of 1.5 ms for 1-axis speed control operations.
• Extensive internal storage holding up to 600 positioning sequences per axis.
• Dual-coordinate method implementation supporting both absolute and incremental positioning profiles.
• Low internal thermal footprint with a 5 VDC current consumption of only 0.36 A.

Applications

• Multi-axis pick-and-place gantry systems
• Packaging, wrapping, and labeling machinery
• Material handling systems and synchronized conveyor lines
• Automated assembly and test fixtures

Technical Specifications

Installation Guidelines

To ensure operational safety and signal integrity when installing the QD75P4N module, execute the following steps:

• Power Isolation: Shut down all external power supplies and the PLC rack power before mounting or removing the positioning module.
• Module Retention: Securely seat the module onto the MELSEC-Q base unit guide slot and tighten the module fixing screw to prevent shifting due to machine vibration.
• Cable Routing: Route the 40-pin drive interface cables away from high-voltage AC mains power lines and motor drive outputs to mitigate electrical noise interference.
• Shield Grounding: Ground the shield drain wire of the command signal cables to the designated panel earth bar near the PLC rack.