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20ms Ultra-fast Response! Pressure Control Principle of VEIKONG VFD550I Servo System 20ms Ultra-fast Response! Pressure Control Principle of VEIKONG VFD550I Servo System In modern industrial hydraulic applications, especially in injection molding, die-casting, hydraulic presses and metal balers, system response speed and pressure stability directly determine production efficiency, product qualification rate and energy consumption. Shenzhen VEIKONG Electric, with more than 12 years of drive technology accumulation, has launched the VFD550I series electro-hydraulic servo drive, which achieves a 20ms ultra-fast pressure response through independently developed control algorithms and optimized structural design. This paper will interpret the pressure control principle of VFD550I in detail based on actual working conditions and technical parameters.   What Is 20ms Ultra-fast Response The response time of a conventional hydraulic system is usually at the 100–300ms level, which leads to lag in pressure building, unstable flow and poor consistency of products. VEIKONG VFD550I shortens the pressure response time to 20ms, reaching millisecond-level closed-loop control. This means that after the system sends a pressure command, the drive can complete torque output, motor speed adjustment and oil pressure stabilization in an extremely short time, realizing “instruction arrives, pressure follows”. This index is verified under actual working conditions: pressure overshoot ≤ ±1%, steady-state pressure fluctuation ≤ ±0.5Bar. It fundamentally solves the problems of slow response, pressure overshoot and unstable molding in traditional hydraulic systems.   Core Control Principle of VFD550I Closed-loop Pressure Control Algorithm The VFD550I adopts a high-precision closed-loop pressure control algorithm independently developed by VEIKONG. The algorithm collects real-time pressure signals from the oil pressure sensor, compares them with the target pressure set by the host computer, and quickly adjusts the output frequency and torque of the servo motor through high-speed calculation.   The whole closed-loop process includes: · Real-time sampling of pressure signals · High-speed error calculation and compensation · Dynamic adjustment of motor speed and torque · Fast suppression of pressure overshoot and oscillation This set of algorithms ensures that the system pressure is always kept within the target range, even under variable load conditions.   High-speed Torque Output of PMSM The VFD550I is matched with the MFD series AC permanent magnet synchronous servo motor, which has the characteristics of low inertia, high torque density and fast dynamic response. The motor can reach rated torque in a short time, providing strong power support for 20ms pressure response. Compared with asynchronous motors, the MFD motor has 15% lower peak current and 20% higher power density, which greatly improves the response speed and control accuracy of the whole system.   Multi-pump Synchronization & CAN Bus Collaboration For large hydraulic systems, VFD550I supports multi-pump confluence and diversion control based on CAN bus communication. The master-slave drives realize real-time data interaction, pressure command synchronization and flow coordinated distribution. This structure ensures that multiple pumps can act synchronously or separately, further shortening the pressure building time and improving the overall response speed of the system.   Technical Parameters Supporting Ultra-fast Response · Pressure response: 20ms · Pressure overshoot: ≤ ±1% · Steady-state pressure fluctuation: ≤ ±0.5Bar · Overload capacity: 150% rated current for 60s; 180% for 10s · Control modes: Sensorless vector (SVC), closed-loop vector (VC) · Communication: MODBUS, CANopen These parameters ensure that the VFD550I can maintain stable and fast response under long-term continuous operation and heavy load impact.   Application Benefits of 20ms Ultra-fast Response   Higher Production Efficiency Millisecond-level response shortens the molding cycle, and the overall efficiency of injection molding and die-casting equipment is increased by more than 10%.   More Stable Product Quality Pressure stability ensures consistent product size and density. Positioning accuracy can reach 0.1mm, significantly reducing the defective rate.   Better Energy-saving Effect Fast and accurate pressure control reduces no-load flow loss and invalid energy consumption. The actual power saving rate can reach 20%–60%.   Conclusion VEIKONG VFD550I electro-hydraulic servo system achieves 20ms ultra-fast pressure response through advanced closed-loop algorithm, high-performance permanent magnet synchronous motor and reliable bus communication technology. It perfectly meets the high-precision and high-efficiency needs of modern hydraulic equipment. As a professional provider of electro-hydraulic servo solutions, VEIKONG will continue to invest in R&D and provide more stable, efficient and energy-saving products for global industrial customers.   Related words: Electro-hydraulic servo drive High-precision hydraulic control Industrial hydraulic systems
2026-05-11 18:46:52 More >
From Injection Molding Machines to Hydraulic Balers: What Other Equipment Can Electro-Hydraulic Servo Drives Be Used On? From Injection Molding Machines to Hydraulic Balers: What Other Equipment Can Electro-Hydraulic Servo Drives Be Used On? 1. Core Positioning of Electro-Hydraulic Servo Drives   The VEIKONG VFD550I series electro-hydraulic servo drive is a professional product specifically developed for hydraulic control applications. According to the product brochure, this system consists of the VFD550I drive and the MFD series AC permanent magnet synchronous servo motor, offering core advantages such as ultra-quiet operation, over 30% energy savings, and millisecond-level pressure response. Although many people associate electro-hydraulic servo drives exclusively with injection molding machines, their application range extends far beyond this single equipment type.    2. Injection Molding Machines: The Most Mature Application   Injection molding machines represent the most common application for electro-hydraulic servo drives. According to customer cases in the brochure, the VFD550I has achieved significant results in injection molding machine retrofit projects. By replacing hardware with excellent electro-hydraulic servo control software, system response speed is accelerated, mold opening and closing accuracy is ensured, and injection end position accuracy reaches 0.1mm. The high-precision, high-response PID algorithm module makes system pressure very stable, with pressure control overshoot less than or equal to ±1% and steady-state fluctuation less than or equal to ±0.5 Bar, effectively improving plastic product molding quality. Additionally, high-speed field weakening control and high response speed increase overall machine efficiency by 10%, with year-on-year power saving reaching 35%.    3. Die-Casting Machines: A Typical Application for Multi-Pump Confluence and Diversion   Die-casting machines represent another important application area for electro-hydraulic servo drives. According to the brochure, the VFD550I series can achieve multi-pump confluence and diversion switching functions, allowing either confluent operation for the same action or diversion to complete different actions. The die-casting machine multi-pump confluence and diversion application case in the brochure shows that compared with simple multi-pump confluence systems, this system offers faster response, can complete more than two independent action processes simultaneously, significantly shortens product molding cycles, allows certain actions to be completed separately, greatly saves production time, improves production efficiency, and achieves greater energy savings.    4. Hydraulic Balers: Dual Improvement in Energy Savings and Efficiency   Hydraulic balers represent another successful application scenario for the VFD550I electro-hydraulic servo drive. According to the metal hydraulic baler application solution in the brochure, the solution using the VFD550I electro-hydraulic servo drive paired with a permanent magnet synchronous servo motor saves 20% to 60% of electricity compared with traditional hydraulic baler control solutions. The excellent control algorithm of the VFD550I hydraulic servo drive ensures that system speed follows response quickly and stably, guaranteeing accuracy of system oil pressure changes and fast, efficient single cycles during hydraulic baler operation. In this application, system single-cycle time was reduced to 96 seconds. Excellent overload capacity ensures safe and stable operation of the hydraulic baler even under extreme load conditions.    5. Hydraulic Stations: Measured Power Saving Exceeding 50%   Hydraulic stations are core components of industrial hydraulic systems and an important application area for electro-hydraulic servo drives. According to the hydraulic station application solution in the brochure, a project conducted before-and-after comparison measurements using a meter, achieving a power saving rate of 51.2% after the retrofit was completed. After completing the first phase of retrofitting 29 hydraulic stations, two subsequent phases of retrofitting were carried out. This case fully demonstrates the energy-saving value and reliability of the VFD550I electro-hydraulic servo system in large-scale hydraulic station retrofit projects.    6. Metal Hydraulic Balers and Presses   Beyond the equipment mentioned above, the VFD550I can also be applied to metal hydraulic balers, presses, and other equipment. According to the press application solution in the brochure, customers require fast response and stable pressure to ensure product quality consistency, while also achieving high efficiency and energy savings. The VFD550I achieves pressure flow response time as fast as 20ms and displacement accuracy less than 0.1mm, enabling the press to move when commanded, stop when commanded, and position precisely. At the same time, products produced have high consistency, greatly reducing the defect rate.    7. Conclusion: Broad Applicability Across Hydraulic Equipment   From injection molding machines to die-casting machines, from hydraulic balers to hydraulic stations and metal presses, the VEIKONG VFD550I series electro-hydraulic servo drive, with its dual-motor compatibility, multi-pump confluence and diversion control, millisecond-level pressure response, and excellent overload capacity, is widely applicable to various types of hydraulic equipment. Whether you need to retrofit an existing injection molding machine or seek a drive solution for a hydraulic baler or die-casting machine, the VFD550I delivers efficient, stable, and energy-saving solutions. VEIKONG will continue to serve global hydraulic equipment users with professional technology.   Related words: VFD550I series electro-hydraulic servo drive 20ms response time
2026-04-26 21:43:58 More >
Permanent Magnet Synchronous Motor vs Asynchronous Motor: How to Choose for Electro-Hydraulic Servo Systems? Permanent Magnet Synchronous Motor vs Asynchronous Motor: How to Choose for Electro-Hydraulic Servo Systems? 1. Motor Selection Is Key to Electro-Hydraulic Servo Systems   In electro-hydraulic servo systems, motor selection directly affects energy efficiency, response speed, and operational stability. The VEIKONG VFD550I series electro-hydraulic servo drive features dual-motor compatibility. According to the product brochure, this series can seamlessly drive both permanent magnet synchronous motors and asynchronous motors. So how should users make their choice in practical applications? This article analyzes the question from both technical characteristics and application scenarios.    2. Core Advantages of Permanent Magnet Synchronous Motors   The MFD series AC permanent magnet synchronous servo motor, which pairs with the VFD550I series, is specifically developed by VEIKONG for hydraulic control applications. According to the brochure, this motor offers several technical advantages.   First, higher power density. Compared with conventional motors, the power density of permanent magnet synchronous motors increases by more than 20%, with smaller size and more compact structure, making them suitable for installation scenarios with limited space.   Second, advanced thermal management. The motor uses a one-piece molded housing with a maximum temperature rise controlled within 50°C, providing excellent heat dissipation and low temperature rise.   Third, reluctance torque optimization. Under the same torque output, current consumption of permanent magnet synchronous motors is reduced by 15%, resulting in smaller losses for both the motor and controller, significantly improving system efficiency.   Fourth, fast response characteristics. When paired with the VFD5501 drive, permanent magnet synchronous motors achieve system latency of 20ms, with rapid pressure response and flow stabilization time not exceeding 50ms.    3. Application Scenarios for Asynchronous Motors   Asynchronous motors, as traditional AC motor types, still have wide applications in some retrofit projects. According to the brochure, the VFD550I series also supports asynchronous motor drive. The advantage of asynchronous motors lies in their relatively lower cost. In many old equipment retrofit projects, users may wish to keep the original motor to reduce transformation costs. Additionally, asynchronous motor control technology is mature with well-established maintenance systems. For application scenarios that do not require particularly high response speed, asynchronous motors remain an economically viable choice.    4. Energy Saving Differences Between the Two Motor Types   Energy saving is one of the core values of electro-hydraulic servo systems. According to actual application cases in the brochure, the solution using the VFD550I electro-hydraulic servo system paired with permanent magnet synchronous motors saves 20% to 60% of electricity compared with traditional hydraulic systems. In one hydraulic station retrofit project, the measured power saving rate reached 51.2%. In a metal hydraulic baler application, the system single-cycle time was reduced to 96 seconds while achieving 20% to 60% power savings. Although asynchronous motors can also achieve some energy savings, their efficiency under low-speed, high-torque conditions is not as good as that of permanent magnet synchronous motors.    5. Comparison of Control Precision and Response Speed   For high-precision hydraulic equipment such as injection molding machines and die-casting machines, control precision is a key indicator. According to the brochure, when the VFD550I is paired with a permanent magnet synchronous motor, pressure control overshoot is less than or equal to ±1%, steady-state fluctuation is less than or equal to ±0.5 Bar, and pressure response is completed within 20ms. Displacement accuracy reaches 0.1mm. These indicators ensure the stability and consistency of injection molded product quality. Asynchronous motors under V/F control and open-loop vector control can also meet general precision requirements, but they are slightly inferior to permanent magnet synchronous motors in low-speed performance and dynamic response.    6. VFD550I Dual-Motor Compatible Design   VEIKONG has fully considered the needs of different users. According to the technical specifications in the brochure, the VFD550I series supports three control modes: V/F control, sensorless flux vector control without PG card, and sensor speed flux vector control with PG card. This flexible control mode selection allows the same drive to either drive permanent magnet synchronous motors for high-performance operation or drive asynchronous motors to meet basic application needs. Users can choose the most appropriate motor type based on actual project budget and performance requirements.    7. Conclusion: How to Make Your Choice   In summary, the choice between permanent magnet synchronous motors and asynchronous motors should be based on the following factors. If the project pursues high energy efficiency, fast response, and high-precision control, permanent magnet synchronous motors are the better choice, especially suitable for equipment such as injection molding machines, die-casting machines, and hydraulic balers. If the project budget is limited and requirements for response speed and energy savings are not high, asynchronous motors can serve as an economical alternative. The dual-motor compatible design of the VEIKONG VFD550I series electro-hydraulic servo drive provides users with flexible selection options. Whichever motor you choose, you will obtain stable and reliable drive control.   Related words: VFD550I series electro-hydraulic servo drive 20ms response time
2026-04-26 21:41:17 More >
From CNC Lathes to Machining Centers: The Wide Application Scenarios of the S6 Servo Drive From CNC Lathes to Machining Centers: The Wide Application Scenarios of the S6 Servo Drive 1. Product Positioning: Built for CNC Machining Equipment   The S6 series spindle-specific servo drive is a professional product launched by VEIKONG for CNC machining equipment. According to the product brochure, this series is mainly used to drive spindle motors in CNC lathes, CNC milling machines, machining centers, grinders, and other CNC machining equipment. This clear product positioning ensures that the S6 series fully considers the special requirements of the CNC machining industry from the design stage, including high-precision positioning, fast response, and strong overload capacity.   2. Rich Types of Applicable Equipment   The S6 series servo drive covers multiple major equipment types in the CNC machining field.   CNC lathes are one of the core application scenarios for the S6 series. Lathe machining requires the spindle to provide sufficient cutting torque at low speeds while maintaining stable operation at high speeds. The powerful field weakening speed-up capability of the S6 series maximizes motor output in the field weakening region, meeting the different speed requirements of lathes from rough machining to finishing.   CNC milling machines and machining centers are also within the application scope of the S6 series. These types of equipment have higher requirements for spindle position control and speed response. The S6 series supports semi-closed loop and full closed loop position control, with positioning accuracy of ±1 pulse, meeting the strict requirements of milling and machining centers for machining precision.   Grinders are another important application area for the S6 series. Grinding requires the spindle to run stably for long periods, placing high demands on driver reliability and stability. The S6 series uses an IGBT integrated module with large margin design, combined with reliable overcurrent protection and short circuit protection, effectively reducing the risk of equipment failure.   3. Compatibility with Multiple Motor Types   The S6 series servo drive offers good motor compatibility. The brochure clearly states that this series supports both asynchronous motors and permanent magnet synchronous motors. This means users can choose the appropriate motor type based on actual application requirements without worrying about incompatibility. For users needing to replace or upgrade equipment, this feature provides greater flexibility and more choices.   4. Comprehensive Compatibility with Multiple CNC Interfaces   The S6 series servo drive fully considers the diversity of CNC systems in its interface design. According to the brochure, this series supports multiple CNC interface types, including analog pulse type, EtherCAT bus type, and M3 bus type. This multi-interface compatible design allows the S6 series to adapt to different brands and vintages of CNC systems, greatly reducing the difficulty and cost of system integration.   5. Wide Encoder Interface Compatibility   In terms of encoder support, the S6 series also performs excellently. According to the brochure, this series supports multiple mainstream encoder protocols, including TTL differential output type, Tamagawa protocol absolute value type, SinCos type, and SSI/BISS protocol type. Additionally, encoder output supports arbitrary frequency division. This wide encoder compatibility enables the S6 series to work with various mainstream motors and feedback devices, meeting application requirements at different precision levels.   6. Powerful Overload Capacity Ensures Machining Stability   During CNC machining, the spindle often encounters instantaneous load impacts. The overload capacity of the S6 series is 150% of rated output current for 60 seconds, and 200% of rated output current for 8 seconds. This technical specification ensures that the equipment does not easily shut down when encountering short-term heavy cutting or impact loads, guaranteeing machining continuity and workpiece yield.   7. Independent Air Duct Design Adapts to Harsh Environments   CNC machining workshops typically present environmental challenges such as oil mist and dust. The S6 series adopts an independent air duct design, effectively preventing dust from entering the driver and causing short circuits and other faults. At the same time, the use of high-volume, long-life cooling fans effectively reduces the internal temperature rise of the driver, ensuring long-term reliable operation of the equipment in workshop environments.   8. Conclusion   From CNC lathes to machining centers, from grinders to CNC milling machines, the S6 series spindle-specific servo drive, with its wide motor compatibility, diverse CNC interfaces, rich encoder support, and powerful overload capacity, provides reliable drive solutions for various types of CNC machining equipment. VEIKONG will continue to serve the global CNC machining industry with professional technology and reliable products.   Related words: CNC milling machine Grinder CNC lathe
2026-04-12 17:41:05 More >
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