HITACHI LPD200A: High – Performance Industrial Control Module

Detailed Parameter Table

Parameter Name	Parameter Value
Product model	LPD200A
Manufacturer	Hitachi
Product category	Digital input board / Industrial controller module (opinions vary in sources, likely a digital input – related control module)
Operating voltage	DC 24V (± 10% in some sources)
Input current	10 mA per channel
Number of channels	16
Communication interface	RS – 485 (also mentioned with RS – 232 in some sources)
Environmental conditions (operating temperature)	– 20 °C to + 70 °C
Environmental conditions (humidity)	5 % to 95 % (non – condensing)
Power consumption	Less than 1W
Dimensions	120 mm x 100mm x 35mm (in one source, another gives 160 mm x 100mm x 60 mm)
Weight	0.2 kg (in one source, another gives 1.5 kg)
Protection class	IP20
Certifications	CE, UL, RoHS (mentioned in some sources)

Product Introduction

The Hitachi LPD200A is a high – performance industrial control module, designed to meet the complex requirements of modern industrial automation systems. As part of Hitachi’s extensive lineup of industrial products, it offers a reliable and efficient solution for data acquisition and control within industrial setups.

This module serves as a crucial link in industrial control processes. With its 16 digital input channels, each handling up to 10 mA of current, it can accurately detect and transmit various digital signals. These signals could be from sensors monitoring the status of machinery, such as whether a valve is open or closed, or if a motor has reached a certain rotational speed. The LPD200A then processes this data and can communicate it to other components in the industrial network through its RS – 485 (and potentially RS – 232) communication interfaces, enabling seamless integration into larger control systems.

Core Advantages and Technical Highlights

Robust Design for Harsh Environments

Designed to endure the harshest industrial conditions, the LPD200A can operate within a wide temperature range from – 20 °C to + 70 °C. This makes it suitable for use in environments like steel mills, where high temperatures are prevalent, or in cold storage facilities in the food and beverage industry. Its humidity tolerance, ranging from 5% to 95% non – condensing, further ensures reliable operation in damp environments such as paper mills or textile factories. The IP20 protection class safeguards it from dust and limited exposure to water splashes, protecting its internal components and enhancing its durability over time.

Precise Data Acquisition

Equipped with 16 digital input channels, the LPD200A provides highly accurate data acquisition capabilities. Each channel’s ability to handle 10 mA of current allows for the detection of even the slightest changes in digital signals. In manufacturing plants, this precision is essential for monitoring the operation of complex machinery. For example, it can precisely detect the position of robotic arms in real – time, ensuring that they perform tasks with high accuracy and minimizing the risk of errors in production processes.

Efficient Communication

Featuring an RS – 485 communication interface (and potentially RS – 232), the LPD200A enables seamless data exchange with other devices in the industrial network. RS – 485, known for its long – distance communication capabilities and resistance to electrical interference, is ideal for industrial applications. In large – scale industrial complexes, the LPD200A can communicate with multiple sensors, actuators, and controllers over significant distances, ensuring that data is transmitted quickly and accurately. This efficient communication enhances the overall performance and responsiveness of the industrial control system.

Energy – Efficient Operation

With a power consumption of less than 1W, the LPD200A is designed with energy efficiency in mind. In long – term industrial applications, this low power consumption not only helps to reduce operational costs but also contributes to a more sustainable industrial operation. Factories can rely on the LPD200A to perform its control and data acquisition functions without consuming excessive amounts of energy, making it an environmentally friendly choice for industrial automation.

Typical Application Scenarios

Manufacturing Industry

In automotive manufacturing, the Hitachi LPD200A plays a crucial role in monitoring and controlling the production line. It can detect the presence of car parts on conveyor belts, ensuring that they are in the correct position for assembly. For example, if a part is misaligned, the LPD200A can quickly send a signal to stop the conveyor belt and alert operators, preventing production errors. It also controls the operation of robotic arms used in welding, painting, and assembly processes. By precisely monitoring the digital signals from sensors on these robotic arms, it ensures that they move accurately, resulting in high – quality vehicle production.

Process Industries

In chemical plants, the LPD200A is used to monitor various chemical reactions. It can receive digital signals from sensors that measure parameters such as temperature, pressure, and chemical composition. Based on this data, it can control the opening and closing of valves, the operation of pumps, and other critical processes. In a petrochemical refinery, for instance, it can detect when the temperature of a distillation column exceeds a certain limit and immediately take corrective action, such as adjusting the flow of cooling water, to ensure the safe and efficient operation of the refinery.

Robotics and Automation

For industrial robots in logistics warehouses, the LPD200A enables accurate navigation and operation. It processes digital signals from sensors like cameras and proximity sensors on automated guided vehicles (AGVs). These signals help the AGVs to avoid obstacles, navigate through the warehouse, and pick up and deliver goods precisely. In a large – scale logistics operation, the LPD200A ensures that the AGVs work in harmony, optimizing the flow of goods and improving the overall efficiency of the warehouse.

Related Model Recommendations

Hitachi LPD200B

Likely an upgraded or modified version of the LPD200A. It may offer additional features such as more input channels, enhanced communication capabilities, or improved performance in specific industrial applications. For example, it could be designed for use in more complex industrial setups where a higher number of digital inputs are required.

Hitachi LPD150A

This model might be a scaled – down version of the LPD200A. It may have fewer input channels or a lower power consumption, making it suitable for smaller – scale industrial applications or for use in areas where space or power availability is limited. For instance, it could be used in a small – scale manufacturing workshop with less complex machinery.

Hitachi LPD300A

Probably a more advanced model in the series. It could have a higher processing power, better environmental tolerance, or more sophisticated communication interfaces. In large – scale industrial plants with high – volume data processing requirements and extreme environmental conditions, the LPD300A might be a more suitable choice compared to the LPD200A.

Hitachi LPA302A

Although it has a different model number, it could be related in terms of its function within Hitachi’s industrial control product range. The LPA302A might focus on different aspects such as overall system control, while the LPD200A is more specialized in digital input. In a larger industrial control system, these two modules could work together, with the LPD200A providing digital input data to the LPA302A for further processing and control.

Hitachi LPD200A – Plus

If such a model exists, it could be an enhanced version of the LPD200A with added features like built – in diagnostic tools or improved protection against electrical surges. This could be beneficial in industrial environments where equipment is more prone to electrical interference or where quick and easy troubleshooting is required.

Installation, Commissioning and Maintenance Instructions

Installation Preparation

Before installing the Hitachi LPD200A, ensure that the installation area is clean, dry, and free from excessive dust. Verify that the DC 24V power supply is stable and properly grounded, with the voltage within the ± 10% tolerance range. Use appropriate tools, such as screwdrivers and wire strippers, for the installation. Follow all safety procedures, including turning off the power to the industrial system. Mount the module in a location that provides proper ventilation, as it may generate heat during operation. When connecting communication cables, ensure they are of the correct type for the RS – 485 (or RS – 232 if applicable) interface and are properly shielded to prevent electromagnetic interference.

Maintenance Suggestions

For regular maintenance of the LPD200A, 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 LPD200A. The product undergoes rigorous testing during the manufacturing process to meet high – quality international standards, as evidenced by its CE, UL, and RoHS certifications (where applicable). 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 LPD200A 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.