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Detailed Parameter Table
| Parameter Name | Parameter Value |
|---|---|
| Product model | LPD350A |
| Manufacturer | Hitachi |
| Product category | Industrial control module (ac drive inverter in some cases) |
| Rated power output | Up to 350 kW (or 55 kW in some sources) |
| Input voltage range | 85 – 264 VAC (200 – 600 VAC in other sources; 380 – 480 VAC in some) |
| Output voltage | 24 VDC |
| Output frequency range | 0.1 Hz to 600 Hz |
| Communication interfaces | RS – 485, Modbus RTU, CANopen, Modbus TCP/IP (in some sources also Profibus DP) |
| Operating temperature range | – 25 °C to + 70 °C ( – 10 °C to + 40 °C in some) |
| Humidity | Up to 90% non – condensing |
| Protection features | Overload, short circuit, ground fault, overvoltage, undervoltage protection |
| Protection class | IP20 (IP55 in some sources) |
| Dimensions | 800 mm x 500 mm x 300 mm (W x H x D) in some sources; 300 x 250 x 35 MM in others |
| Weight | 50 kg in some sources |
Product Introduction
The Hitachi LPD350A is a remarkable industrial control module that has been engineered to meet the complex demands of modern industrial automation. As part of Hitachi’s advanced product lineup, the LPD350A serves as a crucial component in various industrial setups.
This module is designed to offer precise control and efficient operation. For applications that require motor control, it can provide accurate speed regulation. With its wide input voltage range, it can adapt to different power supply conditions in industrial environments. The LPD350A can interface with multiple industrial devices, collecting and processing data to enable seamless control of industrial processes. Whether it’s in a manufacturing plant, a power generation facility, or a chemical processing plant, the LPD350A plays a vital role in ensuring smooth and reliable operations.
Core Advantages and Technical Highlights
High – Efficiency Power Management
The Hitachi LPD350A is designed with energy efficiency in mind. It can achieve up to 95% efficiency in power conversion (in some versions), reducing energy consumption and operating costs. This is particularly beneficial for large – scale industrial operations where energy savings can lead to significant cost reductions over time. In manufacturing plants with numerous motors and machinery, the LPD350A can optimize power usage, contributing to a more sustainable and cost – effective operation.
Precise Control Capabilities
Equipped with advanced control algorithms, the LPD350A offers precise speed control for motors. It can achieve a speed control accuracy of ± 0.1% of the rated speed in some models. This level of precision is essential in applications where exact motor speeds are required, such as in high – precision manufacturing processes like semiconductor production or in textile manufacturing where consistent fabric quality depends on accurate motor control.
Robust Protection Features
The module comes with comprehensive protection features. It has overload, short circuit, ground fault, overvoltage, and undervoltage protection. In industrial environments, electrical faults are common, and these protection mechanisms ensure that the LPD350A and the connected equipment are safeguarded. For example, in a petrochemical plant where electrical hazards are prevalent, the protection features of the LPD350A can prevent damage to motors and other equipment, minimizing downtime and maintenance costs.
Versatile Communication Interfaces
Featuring multiple communication interfaces like RS – 485, Modbus RTU, CANopen, and Modbus TCP/IP (and in some cases Profibus DP), the LPD350A can easily integrate with existing industrial networks. This allows for seamless data exchange with other devices such as programmable logic controllers (PLCs), sensors, and actuators. In a large – scale industrial complex, the LPD350A can communicate with various components over different network segments, ensuring efficient operation of the overall control system.
Typical Application Scenarios
Manufacturing Industry
In automotive manufacturing, the Hitachi LPD350A can control the speed of conveyor belts precisely. This ensures that car parts are transported at the correct pace to assembly stations. For example, in a paint – spraying process, the conveyor belt speed needs to be consistent to achieve an even paint finish. The LPD350A can also control the motors of robotic arms used in welding, assembly, and painting operations. By providing accurate speed control, it enables these robotic arms to perform tasks with high precision, resulting in high – quality vehicle production.
Process Industries
In chemical plants, the LPD350A can regulate the speed of pumps that transport chemicals. Precise pump speed control is crucial to ensure the correct flow rate of reactants in chemical reactions. In a power generation plant, it can control the speed of fans used for cooling or ventilation. The LPD350A‘s ability to adapt to different power supply conditions and provide stable control makes it suitable for such critical applications in process industries.
Material Handling
In warehouses and distribution centers, the LPD350A can be used to control the motors of automated guided vehicles (AGVs). These vehicles need to move precisely and at variable speeds to navigate through the warehouse, pick up, and deliver goods. The LPD350A‘s precise speed control and communication capabilities enable seamless integration with the warehouse management system, optimizing the flow of goods and improving overall operational efficiency.
Related Model Recommendations
Hitachi LPD250A
Belongs to the same LPD series. It likely has a lower power rating compared to the LPD350A. It could be suitable for smaller – scale industrial applications or for those with less demanding power and control requirements, such as a small – scale manufacturing workshop with fewer motors to control.
Hitachi LPD300A
Probably an earlier or less – featured model in the series. It may lack some of the advanced features of the LPD350A, such as a narrower input voltage range or less precise control capabilities. It can still be used in applications where the requirements are not as high – end, offering a more cost – effective solution.
Hitachi LPA302A
Although from a different series (LPA), it can work in tandem with the LPD350A in a larger industrial control system. The LPA302A might focus on overall system management, while the LPD350A is more specialized in motor control and power distribution at a local level.
Hitachi LYD105A
This model might be related to specific sensor data processing. It can be used in combination with the LPD350A in industrial setups where sensor – based control is crucial. For example, in a manufacturing process where sensors monitor the quality of products, the LYD105A can process the sensor data and the LPD350A can control the motors based on that data.
Hitachi LUD060A
Possibly related to power management in a different aspect. It could work with the LPD350A to ensure stable power supply and efficient operation of the overall industrial control system. For instance, it might handle power conditioning or backup power supply management, while the LPD350A focuses on motor control and power distribution to the main equipment.
Installation, Commissioning and Maintenance Instructions
Installation Preparation
Before installing the Hitachi LPD350A, ensure the installation area is clean, dry, and free from excessive dust. Verify that the power supply voltage is within the specified input voltage range. Use appropriate tools such as screwdrivers, wire strippers, and torque wrenches for installation. Follow all safety procedures, including turning off the power to the relevant electrical circuits. 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 supported communication interfaces and are properly shielded to prevent electromagnetic interference.
Maintenance Suggestions
For regular maintenance of the LPD350A, 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 LPD350A. 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 LPD350A 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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