ABB SPHSS13 Hydraulic Servo Module

ABB SPHSS13 Hydraulic Servo Module

Product overview

ABB SPHHS13 is a high-performance hydraulic servo module designed specifically for industrial hydraulic control systems, belonging to ABB's rich industrial automation product line. It is mainly suitable for Harmony Rack systems and plays a key role in many industrial scenarios. For example, in terms of turbine control, it can accurately regulate the opening of the steam valve of the turbine, effectively control the speed and output power of the turbine, and ensure stable power output; In wind turbine control, the pitch angle can be precisely adjusted based on environmental factors such as wind speed to achieve efficient utilization of wind energy. In addition, among various industrial automation equipment that require strict precision in position, speed, and torque control, SPHHS13 can also demonstrate its capabilities, providing strong support for the stable operation and precise control of the equipment.

Specification parameters

Physical specifications: The module size is exquisite, with a length of 297.18mm, a height of 35.56mm, a width of 175.26mm, and a weight of approximately 0.272kg or 0.28kg. This compact design enables it to flexibly adapt to various spatial conditions during equipment installation and layout, greatly reducing the occupation of internal space of the equipment and reducing the overall load of the equipment, which is conducive to efficient operation and convenient maintenance of the equipment.

Electrical parameters: The rated input voltage has good compatibility, generally 24V DC, and some data shows that it also supports 48V DC, with a power consumption of 25W. This electrical parameter design not only meets the power requirements for stable and efficient operation of the module itself, but also works within a reasonable energy consumption range, meeting the dual requirements of energy conservation and stable operation in industrial production.

Environmental adaptability parameters: The working and storage temperature ranges from -40 ° C to+85 ° C, demonstrating strong temperature adaptability. It can operate stably in both harsh outdoor environments and high-temperature industrial workshops. The protection level reaches IP67, with excellent dustproof and waterproof performance, which can effectively resist the erosion of external factors such as dust and water vapor, adapt to various harsh and complex industrial environments, ensure reliable operation under extreme working conditions, and maintain stable system operation.

Core functions

Redundant design ensures reliability: Equipped with redundant servo coils, this design is a key manifestation of its high reliability. During normal operation, two servo coils work together. When one coil fails due to electrical short circuit, overheating, or other reasons, the other coil can quickly and seamlessly take over the work, ensuring uninterrupted system control signals, maintaining stable operation of the hydraulic system, effectively avoiding system shutdown caused by key component failures, greatly improving the reliability and fault tolerance of the system, ensuring the continuity of industrial production, and reducing economic losses caused by equipment failures.

Multi sensor support: compatible with AC and DC linear variable differential transformers (LVDT). LVDT, as a high-precision displacement sensor, is commonly used in industrial production to accurately measure the position changes of mechanical components. SPHSS13 can adapt to different types of LVDTs and flexibly select the most suitable sensor for precise measurement and control based on actual measurement scenarios and accuracy requirements, providing rich choices for accurate measurement and control, meeting diverse measurement and control needs in complex industrial environments, and ensuring precise monitoring and control of hydraulic systems.

Flexible control mode: It has two control modes: proportional integral (PI) and pure proportional (P). In PI control mode, the module can effectively eliminate system static errors through proportional and integral calculations of system deviations, making the control process more precise and stable. It is particularly suitable for scenarios that require extremely high control accuracy and long-term stable operation, such as hydraulic control systems for precision machine tools. The pure proportional (P) control mode has an extremely fast response speed and can quickly adjust the control quantity according to changes in the system input signal. It plays a key role in situations where response speed is demanding and sudden changes need to be quickly responded to, such as hydraulic control of high-speed stamping equipment. It can quickly and accurately adjust the control strategy according to actual working conditions.

Working principle

Signal input and processing: External control signals, such as command signals from the automation control system, as well as real-time status signals of the hydraulic system detected by various sensors (such as position signals fed back by LVDT sensors, pressure signals transmitted by pressure sensors, etc.), are input together into the SPHHS13 module. The signal conditioning circuit inside the module will preprocess these input signals, such as filtering to remove noise interference from the signal, amplifying the signal amplitude to an appropriate range, ensuring the accuracy and stability of the signal, and providing reliable data basis for subsequent precise control operations.

Control operation and decision-making: The conditioned signal is transmitted to the microprocessor in the module core. The microprocessor performs complex operations on input signals based on preset control algorithms and the currently selected control mode (PI or P mode). For example, in PI control mode, the microprocessor continuously calculates the deviation between the actual state and the target state of the system, responds quickly to the deviation through a proportional term, adjusts the control quantity, and accumulates the deviation over a period of time through an integral term to eliminate system static errors and comprehensively obtain accurate control instructions to achieve precise control of the hydraulic system.

Signal output and execution: The control instructions generated by the microprocessor are output in the form of electrical signals to the servo valve drive circuit. The driving circuit amplifies the weak control signal and converts it into a strong electrical signal sufficient to drive the servo valve action. Servo valves accurately adjust the flow rate and direction of hydraulic oil based on received signals, thereby controlling the action of hydraulic actuators (such as hydraulic cylinders, hydraulic motors, etc.), achieving precise control of parameters such as pressure, flow rate, and position of the hydraulic system, and enabling industrial equipment to operate according to expected goals and accuracy.

Precautions

Installation environment: It must be installed in a dry and well ventilated place, away from water sources, steam, and corrosive gases, to prevent the module from experiencing a decrease in electrical performance or hardware damage due to moisture and corrosion. At the same time, it is necessary to avoid strong electromagnetic interference sources, such as large motors, frequency converters, and other equipment. If it cannot be avoided, effective electromagnetic shielding measures should be taken, such as using metal shielding covers to shield the module to ensure its normal operation and avoid electromagnetic interference.

Electrical connection: Strictly follow the product manual for electrical wiring, ensure the correct polarity of the power supply, and ensure that the input and output signal cables are firmly connected and well shielded. Use cables that meet the specifications, and the cross-sectional area of the cables should be able to meet the current transmission requirements, avoiding problems such as heating and excessive voltage drop caused by thin cables. For communication cables, it is necessary to follow the wiring specifications of relevant communication protocols. For example, PROFIBUS communication cables should use shielded twisted pair cables, and the terminals should be correctly connected to 120 Ω terminal resistors to ensure stable and reliable communication.

Parameter setting: When using or changing application scenarios for the first time, professional technicians should carefully set module parameters based on actual working conditions, using ABB's matching programming software or debugging tools, such as control mode selection, sensor type configuration, control parameter (proportional coefficient, integration time, etc.) adjustment, etc. Incorrect parameter settings may lead to unstable system operation, decreased control accuracy, and even equipment damage. After the setup is completed, comprehensive debugging and testing are required to ensure that the module works properly and meets actual production needs.

Maintenance: Regularly inspect the appearance of the module to check for abnormal conditions such as dust accumulation, loose components, and damaged cables. If any are found, they should be cleaned, tightened, or replaced in a timely manner. Every certain period (such as six months or one year, depending on the actual usage environment and frequency), professional testing equipment is used to test the electrical performance of the module, including the accuracy of input and output signals, power stability, etc., in order to timely detect potential faults and hidden dangers. When a module malfunctions, it is necessary to first consult the fault code manual, analyze the cause of the fault, and avoid blind disassembly and repair. If it cannot be resolved by oneself, it is necessary to contact ABB's professional after-sales technical support personnel for repair and treatment.

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