Q20UDEHCPU Mitsubishi Melsec-Q series CPU Module

Product parameters

1. Core specifications

Product type: Q series EtherCAT master CPU module, integrating logic control, multi-axis motion control, and EtherCAT bus master functions

Processor performance: 32-bit RISC processor, basic instruction operation speed 0.034μs/step, application instruction operation speed 0.1μs/step (consistent with Q20UDHCPU)

Program capacity: Built-in 200k RAM (battery backup), which can be expanded to 8M RAM via a memory card

Data capacity: Built-in 128k word RAM, supports SRAM/Flash memory card expansion (up to 32GB)

I/O expansion capability: Supports up to 8,192 digital I/O points and 512 analog channels, compatible with all Q series expansion modules

Core parameters of motion control

Supported axes: Up to 64 axes (pulse type/servo type) can be controlled via the EtherCAT bus, with built-in pulse output of 4 axes (up to 4Mpps differential output)

Interpolation function: Supports 64-axis linear interpolation, 24-axis circular interpolation, helical interpolation, and spline interpolation (S-curve)

Synchronization accuracy: The minimum cycle of the EtherCAT bus is 125μs, and the inter-axis synchronization error is ≤1μs

Additional functions: Electronic CAM, electronic gear, position comparison, CAM synchronization, flying shear control, tracking shear control

Communication interface

Built-in EtherCAT master interface: 1

Built-in Ethernet ports: 2

Expansion interfaces: Supports RS-232C/RS-485 communication modules, Profinet/EtherNet/IP modules, etc

Programming software: Supports GX Works3

2. Electrical and environmental parameters

Supply voltage: DC 24V (Allowable range: 20.4V - 26.4V)

Power consumption: Typical power consumption 30W, maximum power consumption 35W

Operating temperature: 0℃ - 55℃ (for operation), -20℃ - 65℃ (for storage)

Humidity range: 5% - 95% RH (Non-condensing, non-corrosive gas)

Protection grade: IP20 (Panel installation, relying on control cabinet protection)

Insulation resistance: ≥10MΩ (measured by a 500V DC megohmmeter)

Withstand voltage: AC 1500V, 1 minute (between the power terminal and the ground terminal)

3. Compatibility

Compatible with all series of Q series expansion modules

Supported EtherCAT slave devices: Mitsubishi servo systems (such as MR-J5E, MR-J4E series), third-party EtherCAT servo systems, remote I/O modules, frequency converters, etc

Support for industrial protocols: Modbus TCP/RTU, OPC UA, CC-Link IE Field, Profinet IO (expansion module required)

Function

EtherCAT high-speed real-time bus control: Built-in EtherCAT master station, with a bus cycle as low as 125μs, supports "distributed clock synchronization", and the inter-axis synchronization error is ≤1μs, meeting the requirements of high-precision multi-axis cooperative control. It has a faster response and stronger anti-interference ability than traditional pulse control.

Large-scale multi-axis motion control: Supports up to 64-axis EtherCAT motion control, covering complex motion functions such as linear/circular arc/helical/spline interpolation, electronic CAM, electronic gear, flying shears/chasing shears, etc. Multi-axis synchronization of large equipment can be achieved without additional motion control modules.

High-performance logic and data processing: Maintaining a high-speed computing speed of 0.034μs per step, it can simultaneously handle large-scale logic interlocking, timing control, and motion control tasks, support massive data storage (formulas, logs, process parameters), and is suitable for the complex control requirements of medium and large-scale production lines.

Flexible expansion and multi-device interconnection: Compatible with all expansion modules of the Q series, it can be flexibly combined with analog quantity, temperature control, and communication modules. The dual Ethernet ports support network redundancy, remote monitoring and programming. The EtherCAT bus can be directly connected to servo systems, frequency converters and remote I/O, achieving seamless interconnection of on-site devices.

High reliability and intelligent diagnosis: It is equipped with multiple diagnostic functions such as power supply anomalies, program errors, EtherCAT bus faults (slave station offline, communication interruption), and abnormal shaft movement. Fault information is fed back in real time to the software or touch screen. Supports program/data battery backup, ensuring data is not lost after power failure. Industrial-grade anti-interference design ADAPTS to complex on-site environments.

Convenient programming and debugging: Supports multiple programming languages such as ladder diagram, FBD, ST, and SFC. The GX Works3 software is equipped with an EtherCAT configuration tool, allowing for intuitive configuration of slave devices, axis parameters, and motion trajectories. It also supports online monitoring of axis position, speed, and bus status, facilitating rapid debugging and maintenance.

Application scenarios

High-end equipment manufacturing: Multi-axis manipulators (4-64 axes), truss robots, collaborative robot workstations, achieving high-precision positioning, multi-arm coordination, and complex trajectory movements (such as welding, handling, and assembly).

Printing packaging and label equipment: high-speed printing machines, die-cutting machines, hot stamping machines, label laminating machines. Through EtherCAT, registration control, flying shear/tracking shear control are achieved to enhance printing accuracy and production speed (supporting high-speed production lines up to 600m/min).

Electronic manufacturing equipment: semiconductor packaging and testing equipment, PCB drilling machines/surface mount technology (SMT) machines, lithium battery electrode sheet cutting machines/winding machines, achieving micron-level positioning and multi-axis synchronous actions, meeting the high-precision processing requirements of electronic components.

Automobile manufacturing and parts processing: Automotive body welding production lines, engine assembly lines, and transmission processing equipment are connected to multiple servo axes and actuators via EtherCAT to achieve process coordination, precise positioning, and cycle optimization.

Logistics and conveying systems: high-speed sorting lines, automated stereoscopic warehouses (multi-stacker crane coordination), AGV cluster dispatching systems, achieving synchronous operation of multiple devices and precise location matching, enhancing logistics sorting efficiency and warehouse turnover rate.

Machine tools and machining centers: Small and medium-sized CNC machine tools, special-purpose processing machine tools (such as laser cutting machines, water jet cutting machines), supporting multi-axis linkage processing, spindle and feed axis synchronization, and improving processing accuracy and response speed through EtherCAT.

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