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Detailed Parameter Table
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Parameter Name
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Parameter Value
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Product model
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LPF240A
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Manufacturer
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Hitachi
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Product category
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Industrial control module (specifically a PLC module)
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Input voltage
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90 – 264 VAC
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Output voltage
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0 – 10 V or 24 VDC
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Input/Output channels
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8 input channels, 8 output channels
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Rated output power
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240 kW
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Input voltage range for power supply
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380 – 480 VAC
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Frequency range
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0 – 500 Hz
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Communication interfaces
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RS – 232, RS – 485, Modbus RTU, Modbus TCP/IP
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Operating temperature range
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– 10 °C to 50 °C
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Storage temperature range
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– 20 °C to 85 °C
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Dimensions
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222 mm x 111 mm x 44 mm
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Weight
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1.2 kg
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Protection class
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IP20
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Processor
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32 – bit RISC CPU
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Scan cycle
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0.25 μs / 指令
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I/O 点数
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40 I/O points
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Storage capacity
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256K bytes
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Protection features
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Overvoltage, undervoltage, overload, short – circuit protection
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Product Introduction
The Hitachi LPF240A is a high – performance programmable logic controller (PLC) module that belongs to Hitachi’s advanced MVH series. Engineered to meet the intricate demands of modern industrial automation, this module is a cornerstone for efficient and reliable control in various industrial settings.
As a core component of a PLC system, the LPF240A undertakes crucial tasks. It processes control programs with great precision, executing complex logic operations that are fundamental for industrial control. By handling input signals from sensors, switches, and other devices, it can generate appropriate output signals to control actuators like motors and valves. With its 32 – bit RISC CPU and a scan cycle of 0.25 μs / 指令，it ensures rapid data processing and quick response times, enabling seamless operation in fast – paced industrial processes.
Core Advantages and Technical Highlights
High – Performance Processing
Equipped with a 32 – bit RISC CPU, the Hitachi LPF240A offers exceptional processing capabilities. It can rapidly execute control programs, handling complex logic operations with ease. This high – speed processing allows for quick decision – making in industrial processes. For example, in a high – speed manufacturing line, it can instantly respond to changes in product quality detected by sensors and adjust the production process accordingly, minimizing waste and maximizing efficiency.
Versatile I/O Configuration
Featuring 8 input and 8 output channels, the LPF240A provides flexibility in connecting to a wide range of industrial devices. These channels can handle both digital and analog signals, making it suitable for diverse applications. In a process control system, it can receive analog signals from temperature and pressure sensors and output control signals to regulate the flow of valves, ensuring precise control over the process.
Robust Communication Capabilities
With multiple communication interfaces such as RS – 232, RS – 485, Modbus RTU, and Modbus TCP/IP, the LPF240A can integrate seamlessly into existing industrial networks. It can communicate with other PLCs, human – machine interfaces (HMIs), and various industrial devices, enabling data sharing and coordinated control. In a large – scale industrial complex, it can transmit real – time data to a central control room, allowing operators to monitor and manage the entire production process effectively.
Reliable Operation in Harsh Environments
Designed with industrial – grade components, the LPF240A can withstand harsh environmental conditions. Its operating temperature range of – 10 °C to 50 °C and storage temperature range of – 20 °C to 85 °C make it suitable for use in various industrial environments, from cold storage facilities to hot manufacturing plants. The IP20 protection class shields it from dust and limited exposure to water splashes, ensuring long – term reliable performance.
Typical Application Scenarios
Manufacturing Industry
In automotive manufacturing, the Hitachi LPF240A can control the assembly line operations. It can monitor the position of car parts on conveyor belts through input sensors and control the movement of robotic arms for precise welding, painting, and part installation. For example, it can ensure that the robotic arm accurately places a car door during assembly, reducing errors and improving production quality.
Process Industries
In chemical plants, the LPF240A plays a crucial role in controlling chemical reactions. It can receive input signals from sensors measuring temperature, pressure, and chemical composition and output control signals to adjust the flow of reactants, the operation of pumps, and the opening and closing of valves. In a petrochemical refinery, it can maintain the optimal conditions for the distillation process, ensuring efficient production of various petroleum products.
Building Automation
In large commercial buildings, the LPF240A can be used to control heating, ventilation, and air – conditioning (HVAC) systems. It can receive input from temperature and humidity sensors in different areas of the building and output control signals to adjust the operation of fans, pumps, and compressors. This ensures comfortable indoor conditions while optimizing energy consumption.
Related Model Recommendations
Hitachi LPF640A
Belongs to the same MVH series as the LPF240A. It likely has a higher I/O capacity or more advanced features, making it suitable for larger – scale industrial applications with more complex control requirements. It can handle a greater number of input and output signals, making it ideal for large manufacturing plants with extensive machinery and equipment.
Hitachi LPF1280A
Another model in the MVH series. It may offer enhanced processing power and additional communication options. It could be used in applications where high – speed data processing and advanced networking capabilities are required, such as in industrial complexes with real – time monitoring and control systems.
Hitachi LPF2560A
Part of the MVH series as well. It might have a larger storage capacity and more advanced control algorithms. This model can be suitable for applications that demand significant data storage and complex control strategies, like in high – precision manufacturing processes where a large amount of historical data needs to be stored for analysis.
Hitachi LPA245A
Although from a different series, it can work in coordination with the LPF240A in a comprehensive industrial control system. The LPA245A may focus on overall system management and interface with external devices, while the LPF240A is more dedicated to local control and data processing.
Hitachi LYT000A
Can be used in combination with the LPF240A in certain industrial setups. It may have specific functions related to sensor data processing or communication with specialized industrial devices, complementing the control capabilities of the LPF240A.
Installation, Commissioning and Maintenance Instructions
Installation Preparation
Before installing the Hitachi LPF240A, ensure the installation area is clean, dry, and free from excessive dust. Verify that the input voltage of the power supply is within the specified 90 – 264 VAC range. Use appropriate tools such as screwdrivers and wire strippers for installation. Follow all safety procedures, including turning off the power to the relevant electrical circuits. Mount the module on a DIN rail, ensuring a secure fit. When connecting communication cables, ensure they are of the correct type for the supported communication interfaces and are properly shielded to prevent electromagnetic interference.
Maintenance Suggestions
For regular maintenance of the LPF240A, periodically inspect it for any signs of physical damage, such as cracks or loose connections. Check the communication ports and power connectors to ensure they are secure. Monitor the operating temperature and humidity levels in the module’s environment to ensure they remain within the specified range. If there are any operational issues, refer to the detailed troubleshooting section in the user manual. Update the module’s firmware regularly (if available) to benefit from the latest bug fixes, performance enhancements, and security patches provided by Hitachi. In case of component failure, use only genuine Hitachi replacement parts to maintain the module’s performance and reliability.
Service and Guarantee Commitment
Hitachi stands firmly behind the quality of the Hitachi LPF240A. The product undergoes rigorous testing during the manufacturing process to meet high – quality international standards. Hitachi offers a comprehensive warranty, covering manufacturing defects for a reasonable period. In case of any problems during the warranty period, Hitachi’s dedicated technical support team is readily available. They can provide prompt assistance, offering guidance on installation, troubleshooting, and maintenance. Hitachi also commits to providing software updates and upgrades when available, ensuring that the LPF240A remains compatible with evolving industrial technologies. This demonstrates Hitachi’s confidence in the product and its commitment to customer satisfaction in the industrial automation market.
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