FR-A842-12120-2-60 MITSUBISHI

FR-A842-12120-2-60 MITSUBISHI Central unit

Product  Description：

A Mitsubishi Central Unit, often referred to as the Central Processing Unit (CPU) module within a PLC (Programmable Logic Controller) system or a specialized HVAC centralized controller, acts as the primary brain of the entire operation. It is responsible for executing the user program, managing data communication across the network, and synchronizing all connected expansion modules to ensure the system operates as a cohesive unit.

Product Parameters

The technical performance of a Mitsubishi Central Unit is defined by its processing capacity and integration depth:

• Instruction Execution Speed: High-end models feature basic instruction speeds as fast as 0.98 nanoseconds, ensuring high-speed machine response.

• Program Storage Capacity: Scalable memory options ranging from 10K steps for simple machines to over 1200K steps for complex plant-wide control.

• Network Integration: Built-in ports typically include Dual Ethernet (1Gbps), supporting protocols like CC-Link IE TSN, EtherNet/IP, and Modbus TCP.

• Multi-CPU Coordination: Capable of high-speed bus communication with up to three additional CPUs (Motion, Robot, or CNC) on a single backplane.

• Data Logging: Integrated SD card slots for continuous logging of operational data and system event history without requiring an external PC.

• Environmental Resistance: Built to withstand industrial conditions, typically rated for operation in temperatures up to 55°C or 60°C and high humidity environments.

Product Advantages

Mitsubishi Central Units are distinguished by their "iQ Platform" philosophy, which emphasizes integration and efficiency:

• High-Speed Synchronization: By using a dedicated high-speed bus, the central unit can synchronize logic control with motion control in microsecond intervals, increasing production accuracy.

• Reduced Engineering Costs: Through the use of GX Works3 software, the central unit supports modular programming and global labels, significantly shortening the development cycle.

• Enhanced Security Features: Provides hardware-level security keys and IP address filters to protect intellectual property and prevent unauthorized access to the control logic.

• Reliability and Longevity: Designed for 24/7 industrial operation with a high Mean Time Between Failures (MTBF), backed by a global support network for long-term maintenance.

• Energy Efficiency: Intelligent power management within the CPU reduces the power consumption of the entire PLC rack during idle states.

Product Applications

These units are deployed in environments where precision and uptime are critical:

• Automotive Manufacturing: Coordinating large-scale body-in-white welding lines and paint shop conveyors where thousands of I/O points must be managed simultaneously.

• Semiconductor Fabrication: Controlling high-precision wafer handling robots and chemical delivery systems that require nanosecond-level timing.

• Renewable Energy Management: Serving as the master controller for wind turbine pitch systems and solar farm grid-tie inverters.

• Smart Building HVAC: Operating as the centralized controller for Variable Refrigerant Flow (VRF) systems, managing hundreds of indoor units from a single interface.

• Large Scale Infrastructure: Managing water treatment processes, tunnel lighting, and airport baggage handling systems.

Important Precautions

To ensure the safety of the operator and the longevity of the central unit, please observe the following:

• Battery Handling: If the unit uses a battery for memory backup, replace it only while the power is ON to avoid data loss, or ensure a backup is saved to the non-volatile memory (Flash).

• Static Electricity: Always touch a grounded metal object before handling the CPU module to discharge any static electricity, which can damage the internal CMOS circuits.

• Installation Orientation: The central unit must be installed on the base unit in the specified vertical orientation to ensure proper heat dissipation through the ventilation grills.

• Firmware Consistency: When using multiple CPUs or remote I/O, ensure all modules have compatible firmware versions to prevent communication errors or system halts.

• Wiring Separation: Keep the communication cables and DC power lines connected to the central unit away from high-voltage AC cables to prevent electromagnetic interference.

The structure and details of the product：

Our services：

Shipping Port:  China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

Warranty: one year

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Our main products include DCS control system spare parts, PLC system spare parts, and robot system spare parts. Our advantageous brands include Allen Bradley, Bently Nevada, ABB, HIMA, Reliance, Bender, National Instruments, Emerson Ovation, Honeywell, Siemens, Allen Bradley, ICS Triplex, FOXBORO, Schneider, GE Fanuc, Motorola, HIMA, Prosoft, and other imported industrial components. Our main products serve a wide range of electronic, metallurgical, chemical, and power plants Industries such as steel mills, rubber, cement, machinery and equipment, and construction.