Nanjing Yao Yan Equipment Co., Ltd. is one of Nanjing University of Aeronautics and Astronautics, technical support, research and development, production, sales and service of high-tech enterprises. Founded in 2005, the registered capital of 505 million yuan, the total assets of 10 million yuan. The company is located in the beautiful historical and cultural city, Nanjing in the CBD core business district, Thai International Plaza. The company has the right to import and export with the Board, the Ministry of International Trade, the Ministry of Finance, Ministry of Domestic Trade, technology and R & D department. General purpose inverter applications in high-performance vector field, SVF-G7 SVF-G7 High Performance Vector Universal inverter as an upgraded version of the original SVF-EV products, product performance, more stable, more powerful product, has a more extensive and specialized industry applications. , SVF-G7 products have been widely used in the following devices occasions, to create a huge economic and social benefits for business and society. Main applications: boiler blower, induced draft fan, coal exhaust fan, oilfield pipeline, water injection pump, fuel pump, air compressor energy saving, musical fountain, plastic box chemical fiber extrusion equipment, metalworking bed, building materials (such as cement, glass master transmission equipment), wire and cable extrusion equipment, a variety of water tanks, straight metal wire drawing machine, metallurgy rod and wire, and strip mill, copper and aluminum thin rolling equipment, printing presses, paper machinery, textile machinery, plastic machinery, ceramic machinery , electrical machinery, CNC lathe, food machinery, light industry, machinery, pharmaceutical machinery, water supply, central air conditioning circulatory system, circulating cooling water, fan and water pump, sewage and wastewater treatment industry. SVF-G7 series vector inverter, voltage class: 380V Power range: 0.4kW ~ 450kW 3, stable and reliable control method: (1) VF control: a variety of curves are available, linear V / F curve, 2.0 times curtain down torque V / F curve, custom V / F percentage coefficient (manual energy saving control), multi-point V / F curve can be used to the inverter drag multiple motor occasions. Adapted to applications such as fans, pumps, engraving machines, injection molding machines. (2) open loop vector control: steady speed precision, wide speed range, the governor output 180% rated torque ratio 1:200,0.5 Hz, dynamic performance. Suitable for machine tools, wire drawing machine, high torque requirements Lifting and handling equipment, rolling mill and other occasions. (3) The torque control: fast torque response <20ms torque accuracy: <5%, applied to the wound applications. 4, supports three expansion card: standard expansion card Model SC-EXT1-I0 function: RS485 hardware interface supports MODBUS protocol, high-speed pulse input and output, all the way to the relay output, analog output. Relay expansion card, Model SC-EXT2-R functionality: four relay outputs can be used for one with two constant pressure water supply or other control occasions. Input multifunction expansion card, model SC-EXT3-S functionality: four multi-function terminal input, suitable sets of lines