MR-J4-350A MITSUBISHI

MR-J4-350A MITSUBISHI I / O module

Product  Description：

Mitsubishi Electric I/O (Input/Output) modules are fundamental components of the MELSEC PLC ecosystem, acting as the physical interface between the controller's CPU and various field devices. These modules are responsible for receiving signals from sensors or switches (Inputs) and sending command signals to actuators, motors, or lamps (Outputs). They are designed to operate in high-speed industrial environments, providing the necessary electrical isolation and signal conditioning to ensure reliable automated control.

Product Parameters

The technical specifications of Mitsubishi I/O modules vary by series (such as the iQ-R, iQ-F, or Q series), but generally include the following parameters:

• I/O Point Density: Available in configurations of 8, 16, 32, or 64 points per module to optimize panel space.

• Input Voltage Ratings: Standard 24V DC (sink/source) for sensors and 100V-240V AC for high-voltage monitoring.

• Output Switching Types: Options include Relay outputs (for high current and AC/DC flexibility), Transistor outputs (for high-speed DC switching), and Triac outputs (for AC loads).

• Response Time: Adjustable input filter times typically ranging from 0.1ms to 70ms to prevent signal "bounce" from mechanical switches.

• Isolation Method: High-speed photocoupler isolation between the field terminals and the PLC backplane, often rated for 2500V AC.

• Terminal Style: Choices between removable screw terminal blocks, 40-pin connectors for high-density wiring, or spring-clamp terminals for vibration-heavy environments.

Product Advantages

Mitsubishi I/O modules are engineered for performance and ease of maintenance in demanding factory settings:

• High-Speed Processing: Compatible with high-speed backplanes that allow for nearly instantaneous data transfer to the CPU, essential for precision motion and timing.

• Compact High-Density Design: The 32 and 64-point modules significantly reduce the physical footprint of the PLC system, allowing for smaller control cabinets.

• Visual Diagnostics: Each point is typically equipped with an individual LED status indicator, allowing technicians to verify electrical signals instantly without using a multimeter.

• Robust Circuit Protection: Many transistor output modules include built-in short-circuit protection and thermal shut-off to prevent hardware failure during field faults.

• Hot-Swapping Capability: Certain high-end series support the replacement of modules while the system is powered, minimizing downtime during maintenance.

Product Applications

These modules are the "eyes and hands" of automated systems across various industries:

• Automotive Manufacturing: Interfacing with proximity sensors on assembly lines and controlling pneumatic valves for robotic welding cells.

• Food and Packaging: Managing high-speed counting for bottling lines and driving solenoids for sorting and packaging machinery.

• Material Handling: Controlling conveyor motors, lift gates, and automated storage and retrieval systems (ASRS) via digital feedback.

• Semiconductor Equipment: Providing the precise, low-latency I/O required for cleanroom wafer handling and chemical delivery systems.

• Building Automation: Monitoring fire alarms, security sensors, and controlling lighting or ventilation dampers in large facilities.

Important Precautions

To ensure safety and prevent damage to the electronics, users must adhere to these operational guidelines:

• Wiring Polarity: When using DC input modules, verify whether the sensors are NPN (sink) or PNP (source) and wire the common terminal accordingly to prevent non-operation or damage.

• Inductive Load Protection: When driving inductive loads like solenoids or relay coils with transistor outputs, always install an external flyback diode to prevent voltage spikes from destroying the output transistor.

• Current Limitations: Do not exceed the maximum rated current per point or the maximum common current for the entire module. Overloading can lead to overheating and permanent circuit failure.

• Cable Separation: Keep I/O signal cables separate from high-voltage power lines (at least 100mm distance) to avoid electromagnetic interference that can cause "ghost" signals.

• Terminal Tightening: Ensure all terminal screws are tightened to the specified torque. Loose connections can cause intermittent signals, localized heating, or electrical arcing.

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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