WOODWARD 5501-381 TMR Power Supply Unit

WOODWARD 5501-381 is a high-performance controller suitable for controlling large industrial engines and gas turbines. It is widely used in the control systems of large power equipment in industries such as electric power, petrochemicals, and shipping.

Its design aims to provide high-precision and high-reliability control for large power equipment. By accurately regulating core parameters such as fuel supply, air intake, and ignition timing, it ensures that the equipment can operate efficiently and stably under complex working conditions such as full load and variable load, while minimizing energy consumption and emissions. Whether in large generator sets, industrial drive devices, or ship main propulsion systems, this controller provides a solid guarantee for the safe and stable operation of equipment with its excellent performance, and is a key component in the field of large power equipment control.

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• Power Supply Parameters: It adopts 24V DC power supply, with an operating voltage range of 19-32V DC, which can adapt to fluctuations in the power supply voltage in industrial sites and ensure the stable operation of the controller. The rated power consumption is about 15W. While meeting the needs of high-performance control, it effectively controls energy consumption, reduces its own heat generation, and extends the service life of the equipment.

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• Control Input and Output: It is equipped with 6 analog input channels, which can receive signals such as 4-20mA and 0-10V, and are used to collect data from various sensors such as engine speed, temperature, pressure, and flow; it has 4 analog output channels with an output range of 4-20mA, which are used to precisely control various actuators. There are 12 digital input channels and 8 digital output channels, which can be connected with a large number of switching devices to realize complex logic control functions.

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• Control Precision: The speed control precision can reach ±0.1% of the rated speed, which can extremely maintain the speed stability of large power equipment and avoid the impact of speed fluctuations on equipment operating efficiency and output quality; the load control precision is ±0.5%, which can accurately adjust the output load of the equipment and perfectly adapt to complex load changes.

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• Environmental Adaptability: The operating temperature range is -40℃ to 75℃, which can operate normally in extremely cold and high-temperature industrial environments; the relative humidity is 5%-95% (non-condensing), which can adapt to humid working scenarios such as ship engine rooms and chemical workshops. It has excellent anti-vibration performance, can withstand vibrations with a frequency of 10-2000Hz and an acceleration of 10g, and the anti-impact performance reaches 50g, ensuring stable work under strong vibrations and impacts generated during equipment operation.

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• Communication Interface: Equipped with various communication interfaces such as Ethernet and RS-485, supporting protocols such as Modbus TCP/IP and Modbus RTU, it can realize high-speed communication with upper computers and monitoring systems, facilitating remote monitoring, data transmission, and centralized management. The maximum communication rate can reach 100Mbps, meeting the needs of fast transmission of large amounts of data.

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• High-Precision Multi-Parameter Cooperative Control: WOODWARD 5501-381 adopts an advanced multi-variable PID control algorithm, which can perform cooperative and precise control on multiple key parameters of large power equipment such as speed, load, pressure, and temperature. During the entire process of equipment start-up, loading, unloading, and shutdown, it can quickly respond and coordinately adjust various control quantities to stabilize the parameters at the set values, greatly improving the stability, efficiency, and safety of equipment operation, and reducing equipment loss and failure risks caused by parameter fluctuations.

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• Strong Adaptive Regulation Ability: It has an adaptive control function, which can automatically adjust control parameters according to factors such as the aging degree of the equipment, changes in fuel quality, and changes in environmental conditions, so as to always maintain the best control effect. For example, when the fuel quality fluctuates, the controller can automatically correct the fuel supply and ignition timing to ensure that the combustion efficiency of the equipment is not affected, adapting to complex and changing operating environments.

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• Comprehensive Protection Mechanism: It has built-in perfect and multi-level protection functions. When the equipment has various abnormal conditions such as overspeed, over-temperature, over-pressure, overload, oil cut-off, and gas cut-off, the controller can detect and issue an alarm signal within milliseconds, and take corresponding protection measures according to the severity of the fault, such as reducing load and emergency shutdown, effectively preventing the expansion of faults, maximizing the protection of equipment safety, and reducing economic losses. In addition, it also has a detailed fault memory and analysis function, which records information such as the time of the fault, parameter change curves, and fault types, providing a comprehensive basis for fault troubleshooting and equipment maintenance.

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• Flexible Programming and Expansion Capability: It provides powerful programming software, supports various advanced programming languages such as structured text, ladder diagram, and function block diagram, and users can write complex control programs according to specific control needs. At the same time, it has rich expansion interfaces and modules, which can flexibly increase input and output channels, communication interfaces, etc. according to the needs of system upgrades, easily realizing system function expansion and adapting to control scenarios of different scales and complexities.

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• Intelligent Remote Monitoring and Management: Relying on advanced communication technology and software platforms, it can realize functions such as remote real-time monitoring, parameter setting, and program update of large power equipment. Through the remote monitoring center, operators can keep abreast of the operating status of the equipment and the changing trends of key parameters, timely discover potential problems and carry out remote intervention, improving equipment management efficiency, reducing on-site operation and maintenance costs, and realizing intelligent management.