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SYSTEM Q series PLC

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The MELSEC SYSTEM Q (or simply MELSEC-Q) is a modular series of programmable logic controllers (PLCs) from Mitsubishi Electric, designed for medium to large automation systems. Developed as a successor to the AnS series, it offers nanosecond-level performance, flexible scalability, and integration with motion control, networks, and PCs. The series remains suitable for complex tasks, but migration to iQ-R is recommended for new projects.


Key Features

  • Modular design: Base units, CPU, power supply, and I/O modules; DIN-rail or wall mounting.

  • Performance: Processing speed 1.9 ns/instruction (QnU CPU), scan cycle down to 0.2 ms; program memory up to 4 MB (QnU).

  • Programming: Ladder logic, STL, FBD, SFC via GX Works2/GX Works3 software; IEC 61131-3 compliant.

  • Interfaces: RS-232/RS-485, Ethernet (10/100 Mbps), CC-Link IE, USB; supports Modbus, OPC UA.

  • Expansion: Up to 4096 I/O points, multi-CPU (up to 4 processors: PLC + motion + PC), positioning up to 32 axes.

  • Environmental durability: Temperature 0…55 °C, humidity 5–95% RH (non-condensing), vibration 5.3 m/s², shock 300 m/s².

  • Standards: CE, UL, cUL, RoHS, IEC 61131-2.


Main Models

  • QnU CPU (universal, base): 30–300K program steps, 100–1000 KB memory, Ethernet/USB.

  • QnH CPU (high-performance): 60–1000K steps, up to 4 MB, for motion control.

  • QnR CPU (process control): For PID, redundancy, up to 1200K steps.

  • Motion CPU (MR-J3/MR-J4): Up to 32 axes, SSCNET III/H; integration with servo drives.


Applications

  • Manufacturing: Packaging lines, conveyors, dosing, traceability.

  • Mechanical engineering: Positioning, CNC, robotics (up to 32 axes).

  • Energy: Substations, redundant systems, PID control.

  • Automotive: Testing, assembly, motion control.

  • Food industry: Recipes, data logging, HMI integration.

  • IT integration: Connection to SQL databases, SCADA.


Advantages of MELSEC SYSTEM Q Series

  • High speed: 1.9 ns/instruction, large data handling (up to 4 MB).

  • Flexibility: Multi-CPU (PLC + motion + PC), up to 4096 I/O, multi-network (AS-i to Ethernet).

  • Security: 32-character password, data logging, optional SIL3, firewall.

  • Compatibility: Programs from AnS transferable; integration with Mitsubishi servo/HMI.

  • Reliability: MTBF >1 million hours, redundancy, fanless design.

  • Cost-effectiveness: Fast ROI, IEC 61131-3 compliance, minimal maintenance.

  • Ease of use: Intuitive software, USB commissioning, seamless integration.


Why choose "CSC-Automation" to purchase Mitsubishi Electric MELSEC SYSTEM Q PLC?

"CSC-Automation" is the official distributor of Mitsubishi Electric in Ukraine with over 20 years of experience.


Our advantages:

• Fast delivery across Ukraine.

• Free expert consultations.

• Official warranty 1 year.

• Wholesale discounts.

• Customized solutions for your business.


How to buy a Mitsubishi MELSEC SYSTEM Q PLC Electric in Ukraine?

Ordering an MELSEC SYSTEM Q Mitsubishi Electric takes a few minutes:

1. View the catalog at kck.ua.

2. Call +38 (044) 494-33-55 or write to kck@kck.ua.

3. Receive the goods with delivery or pickup in Kyiv.