Lifting machinery or will enter the modern high-end equipment

With the continuous development of lifting machinery technology, the lifting automation industry has also entered an unprecedented period of demand. Delta Electronics Group, the global leader in industrial automation, is assisting the “Twelfth Five-Year Plan” construction machinery equipment with its profound lifting automation technology research and development capabilities. The high-end manufacturing industry also ushered in the spring of lifting industry. Following the successful application of Delta VE series inverters to bridge cranes, Delta C2000 inverters are characterized by their high flexibility in mechanical performance, large speed range, high speed accuracy, good stability, ease of control and energy saving. It satisfies the requirements of hoisting equipments in terms of safety, stability, reliability, operability, maintenance-free, etc., and quickly achieves a breakthrough in the application of the crane industry. It has also become a major contributor to the application of inverter brands in many lifting industries. By.

The "12th Five-Year Plan" of the construction machinery industry predicts that by the end of 2015, the sales scale of China's construction machinery industry will reach the development target of 900 billion yuan. As an important part of the construction machinery industry, the crane industry has become a machinery industry with a promising market prospect due to the development of industries such as China’s industrial production and construction industries. At the same time, the modern equipment level of cranes reflects the technical level of the overall domestic machinery modernization. The adoption of modern technology products in the direction of automation is particularly important.

There are many types of cranes, but most of them are used in areas with poor working conditions, carrying various tasks with different weights and high-frequency lifting tasks. The requirements for speed control performance of cranes have been continuously improved, and electrical control and speed control has become a common method for cranes. AC frequency conversion speed regulation technology can use its high-performance speed regulation index, it can use the squirrel cage induction motor with simple structure, reliable operation and convenient maintenance, and it is highly efficient and energy-saving. Its peripheral control circuit is simple, maintenance workload is small, and protection monitoring function is perfect. Such advantages are widely used, providing a new solution for the large-scale, high-quality speed adjustment of AC asynchronous motor-driven cranes. AC variable-frequency speed regulation has become the mainstream of crane AC speed control technology development.

Over the years, Delta Group has devoted itself to the research and development of crane variable frequency speed control systems with its deep inverter R&D technical strength. As early as in 2008, it developed a series of B series with complete functions, high speed accuracy, and good stability for crane walking. The upgraded VE series frequency converter and the lifting frequency conversion speed control system composed of Delta VE series inverter, ES series PLC and double handle linkage console were successfully applied to bridge cranes. The PLC collects the handle controller signal, performs logic judgments through the program, and adjusts the output of the inverter according to the judgment result to control the direction, speed, and torque of the drive motor, and replaces the conventional conventional wound rotor resistance resistance system. Through the multi-functional terminal of VE series inverter, the two variables of output current and output frequency are detected in real time to control the movement of the crane's braking system, which fully guarantees that the frequency converter can provide sufficient torque while ensuring the safety of the system.

With the deep development of the crane in the direction of people-oriented informatization, the new generation of high-performance vector inverter Delta C2000 has emerged: (1) Enhanced SVC response improves the torque characteristics so that lift can achieve greater The output torque. (2) Has a wide power range of 0.75kW-355kW. (3) In the zero speed operation mode, DC braking can be performed automatically under SVC, and slipping can be prevented by cooperation with the brake mechanism. (4) LCD multi-language operation interface provides richer operation information, parameter description visualization, parameter setting more convenient, and convenient maintenance. (5) The built-in PLC fully meets the logic control requirements. (6) Double rated design (ND light load / HD heavy load), effective protection of current stability. Delta C2000 series inverters have successfully applied large-scale hoisting equipment such as gantry cranes. It has also become a highlight for the engineering machinery industry to become energy-efficient, reliable and safe.

During the “Twelfth Five-Year Plan” period, the hoisting equipment industry will usher in an important period of development. With the deepening of the level of industrial automation technology, it will gradually become automated and informatized. It will be green, energy-saving and environmentally friendly. It is believed that “the energy saving, environmental protection and love Delta's mission of "Earth" will surely make progress in the development of the lifting machinery industry. Further, it will help the cranes quickly enter the ranks of modern high-end equipment!