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This document fully complies with ECE R industrial EMC & low-voltage safety export standards, all texts adopt international unified industrial technical terminology without Chinese content.
QD77MS16 Module Appearance
1. Product Overview ⚙️
MITSUBISHI QD77MS16 16-Axis SSCNET III/H Simple Motion Module for MELSEC-Q Series PLC
QD77MS16 is a high-performance multi-axis motion control expansion module exclusively designed for Mitsubishi MELSEC-Q Series PLC platform, adopting high-speed fiber-optic SSCNET III/H servo bus as communication mediumMITSUBISHI ELECTRIC.
It serves as the dedicated motion control processor to coordinate up to 16 servo axes (including virtual axes) linked to Mitsubishi MR-J4/JE/JN series servo amplifiers. It undertakes all high-precision motion calculation tasks independently of the main CPU, realizing multi-axis positioning, electronic cam, electronic synchronization, speed/torque switching and closed-loop tension control via standard PLC sequence programs.
Fiber-optic SSCNET III/H eliminates electromagnetic interference during long-distance wiring, supporting stable servo signal transmission for large-scale automated production lines. It integrates all core positioning functions of traditional QD75MH modules plus advanced synchronous motion features, balancing easy programming and high dynamic motion performanceMITSUBISHI ELECTRIC.
2. Core Advantages & Key Features ✅
Max 16 Independent Servo Axis Control
Supports physical servo axes + virtual axes up to 16 total channels in one single slot module, greatly reducing the quantity of motion modules and cabinet layout space for multi-axis equipment.
High-Speed SSCNET III/H Fiber Optic Bus
150 Mbps full-duplex fiber communication, 3× faster than old SSCNET III; max 100m distance between each servo station, total system wiring length up to 3200m; anti-EMI fiber cable avoids signal distortion near inverters/motorsMITSUBISHI ELECTRIC.
Comprehensive Advanced Motion Function Library
Built-in linear interpolation (4-axis), 2-axis circular interpolation, electronic cam, multi-axis master-slave synchronous tracking, continuous speed-torque switching, mark detection and external encoder follow-up control.
Ultra-Fast Motion Operation Cycle
Configurable motion cycle of 0.88ms / 1.77ms, delivers high deterministic response for high-speed packaging, printing and cutting equipment without position lag.
Absolute Position System Support
Works with absolute encoder servo motors, eliminates mechanical homing operation after power restart, improves production efficiency and avoids collision risks during startup.
Rich External Positioning I/O Terminals
4 external latch input signals for print mark registration, 16 groups of mark detection parameter storage, ideal for printing, laminating and film winding tension control.
Independent Motion Calculation Offloads Main CPU
All servo trajectory computation runs on the module’s local chip, reducing Q series CPU load and guarantee stable PLC logic & motion parallel operation.
Complete Diagnostic & Debug Tools
Onboard digital oscilloscope function for real-time servo signal capture; servo amplifier communication monitoring, automatic disconnection/reconnection detection and fault code feedback for rapid maintenance.
Full Q Series Ecosystem Compatibility
Plug-and-play with all Q series base units, perfectly matched with Q03UDVCPU CPU, Q64DAH analog module, QH42P I/O module, GT2103/GS2107 HMI; configured via GX Works3 software.
3. Complete Technical Specifications
表格
Specification Item
Exact Technical Parameter
Model
QD77MS16
Series
MELSEC-Q Series Simple Motion Module
Controllable Servo Axes
Max. 16 axes (physical + virtual axes)
Servo Communication Bus
SSCNET III/H fiber optic, backward compatible with SSCNET III
Communication Speed
150 Mbps full duplex
Max Distance Between Servo Stations
100 m per station
Configurable Motion Cycle
0.88 ms / 1.77 ms
Interpolation Functions
4-axis linear interpolation, 2-axis circular interpolation
Shaanxi Qindiyuan Environmental Protection Equipment Co., Ltd.
Founded in 2018 | Headquartered in Fengdong New Town, Xi'an, Shaanxi Province, China
Company Overview
Shaanxi Qindiyuan Environmental Protection Equipment Co., Ltd. is a leading manufacturer and supplier of industrial automation contr...
Shaanxi Qindiyuan Environmental Protection Equipment Co., Ltd.
Founded in 2018 | Headquartered in Fengdong New Town, Xi'an, Shaanxi Province, China
Company Overview
Shaanxi Qindiyuan Environmental Protection Equipment Co., Ltd. is a leading manufacturer and supplier of industrial automation contr...
