Mitsubishi FX3G-24MR/DS Central control module

Mitsubishi FX3G-24MR/DS Overview

The Mitsubishi FX3G-24MR/DS is a compact and versatile Programmable Logic Controller (PLC) belonging to Mitsubishi Electric's FX3G series. It is designed for small to medium-scale control systems, offering a good balance of performance, functionality, and cost-effectiveness. The "24MR" indicates 24 total I/O points, and "DS" specifies DC power supply with Relay outputs.

Product Detailed Description

• Functionality:

• Controls various industrial processes and machinery through programmable logic.

• Processes digital inputs and outputs based on user-defined programs (ladder logic, structured text).

• Offers basic control functions such as timers, counters, data handling, and arithmetic operations.

• Includes communication capabilities for connecting to other PLCs, HMIs, and supervisory systems.

• Key Features:

• Integrated I/O: 24 total I/O points (14 digital inputs, 10 digital relay outputs).

• Compact Design: Space-saving footprint suitable for installation in small control panels.

• Built-in High-Speed Counters: Supports high-speed counting for position control or pulse measurement.

• Built-in Pulse Outputs: Capable of controlling stepper motors or servo motors for simple positioning tasks.

• Integrated USB Port: Facilitates easy programming and monitoring with a PC.

• Serial Communication Ports: Equipped with RS-422 for communication with other devices (e.g., HMIs, other PLCs).

• Expandability: Supports expansion modules for additional digital I/O, analog I/O, and communication modules, allowing for system scalability.

• Large Program Memory: Offers sufficient program memory for a wide range of applications.

• Real-time Clock Function: Enables time-based control.

• DC Power Supply: Operates on a 24V DC power supply.

• Relay Outputs: Provides robust relay outputs suitable for switching various loads.

Product Parameters

• Model: FX3G-24MR/DS

• I/O Points: 24 total

• Digital Inputs: 14 points (sink/source selectable)

• Digital Outputs: 10 points (relay type)

• Power Supply: 24 V DC (tolerance typically 20.4 to 28.8 V DC)

• Program Memory: Typically 32,000 steps (EEPROM)

• Built-in High-Speed Counters:

• Single-phase: Up to 60 kHz (4 points), 10 kHz (2 points)

• Two-phase: Up to 30 kHz (2 points)

• Built-in Pulse Outputs: Up to 100 kHz (2 points)

• Communication Ports:

• USB: 1 port (Mini-B) for programming

• RS-422: 1 port (Mini DIN 8-pin) for serial communication

• Expansion Capability: Max. 38 I/O modules, up to 128 (digital) / 8 (analog) total I/O points with expansion

• Dimensions (W x H x D): Approx. 90 mm x 90 mm x 87 mm (dimensions may vary slightly; refer to datasheet)

• Weight: Approx. 0.4 kg

• Operating Temperature: 0 to 55 °C (32 to 131 °F)

• Storage Temperature: -20 to 70 °C (-4 to 158 °F)

• Humidity: 5 to 95% RH (non-condensing)

• Degree of Protection: IP10 (when mounted in a cabinet)

• Standards: UL, cUL, CE, KC, Lloyd's Register (LR), ABS, DNV GL, RINA, NK, BV, RS (depending on specific revision)

Product Advantages

• Cost-Effective: Offers a good balance of features and price, making it suitable for budget-conscious projects.

• Compact Size: Saves valuable space in control cabinets.

• Ease of Use: Intuitive programming environment (GX Works2 or GX Works3) and USB connectivity simplify development and maintenance.

• Versatile: Suitable for a wide range of small to medium-scale applications due to its integrated I/O and expansion options.

• Reliability: Built with Mitsubishi Electric's reputation for robust and reliable industrial control equipment.

• Integrated Functions: Built-in high-speed counters and pulse outputs reduce the need for external special function modules.

• Scalability: Can be expanded with various special function modules to meet evolving application requirements.

• Global Support: Backed by Mitsubishi Electric's extensive global service and support network.

Precautions

• Power Supply: Ensure the 24V DC power supply is stable and within the specified voltage tolerance. Incorrect voltage can damage the PLC.

• Wiring: Follow the wiring diagrams in the manual carefully. Incorrect wiring can lead to malfunction or damage. Pay attention to input type (sink/source) and output load ratings.

• Grounding: Proper grounding of the PLC and control panel is crucial for noise immunity and safe operation.

• Environmental Conditions: Operate the PLC within the specified temperature and humidity ranges. Avoid areas with excessive dust, corrosive gases, strong vibrations, or direct sunlight.

• Software Compatibility: Use the correct version of GX Works2 or GX Works3 programming software for the FX3G series.

• Load Protection: For relay outputs, ensure external protection (fuses or circuit breakers) is used for connected loads, and that the load current does not exceed the relay's maximum rating.

• Static Electricity: Take precautions against electrostatic discharge (ESD) when handling the PLC, especially when installing or removing modules.

Product Applications

The Mitsubishi FX3G-24MR/DS is widely used in various small to medium-scale industrial automation applications, including:

• Packaging Machinery: Control of conveyors, filling machines, sealing machines.

• Material Handling: Conveyor systems, automatic storage and retrieval systems (AS/RS).

• Textile Machinery: Control of looms, winding machines.

• Food & Beverage Industry: Control of processing lines, bottling plants.

• Building Automation: HVAC control, lighting control.

• Water Treatment: Control of pumps, valves, and monitoring systems.

• Small Assembly Machines: Automation of pick-and-place, drilling, or riveting operations.

• Process Control: Simple batching, mixing, and temperature control applications.

• Testing and Measurement Equipment: Automation of test sequences.

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