Recently, a paper-making mill equipment using more than 400 V&T inverters has been commissioned and put into production smoothly. In the field of low and medium voltage inverters, V&T product has further strengthened reliability and environmental applicability design according to the domestic applications and the needs of different industries, and can provide customized solutions according to the different process requirements of customers. To better meet the high-end, mid-range and general application needs of domestic customers. V&T inverter has stable technology, reliable quality, and has been tested by the market. More excellent performance and a wider range of industry applications to meet the needs of high, medium and low industry applications. In a domestic paper-making project, more than 400 V&T AC drives were used in batches, with a voltage level of 380V and a rated power ranging from 0.75kW to 500kW. The excellent performance and stable quality of V&T inverters guarantees the production and operation of the paper-making equipment assembly line. The following picture shows V&T inverters that are being installed. ⬛ For Shenzhen V&T Technologies Co., Ltd. Shenzhen V&T Technologies Co., Ltd. was certificated as a "National Hi-tech and Double-Software Enterprise", which has fully intellectual property rights and devotes to the R&D, manufacture, sales and technical service of Inverter, Servo Drive, Electric Vehicle Motor Controller, etc. V&T has won the “Technical Innovation” prize awarded by the Inverter Industry Association, “The Most Competitive Brands” prize awarded by China Electrical Association, "2012 Electric Vehicle Excellent Technology" prize respectively awarded by China Electric-technical Society (CES), the Specialized Committee of Electric Vehicles, the Automotive Engineering Society of China, and theBranch Association of Electric Vehicles. V&T has been ranked as one of the “Top 10 Chinese Inverter Enterprises”. V&T successfully listed on the Stock Exchange of China in 2016 (stock code: 300484). The company masters the core control technology of motor drive, and has complete industrial design and production capacity. It has a rich product series. The voltage level covers 200V, 400V, 690V, 1140V, and power range covers 0.4kW～3000kW, which can meet various Application requirements of high-end, medium-end, and low-end markets. Under the premise of meeting international standards and satisfying different industries' application requirements, we further strengthened product reliability and environment adaptability to suit harsh and extreme environments. Customized product and industrialized design can better meet medium and high-end application demands. It has been widely used in metallurgy, lifting, petroleum, chemical, machine tools, electric vehicles, metal processing, building materials, stone, wood processing, ceramics, plastics, air compressors, washing machines, water supply,...

V&T Electric Vehicle Motor Controller has excellent waterproof effect and passed the IPX9 test smoothly. It has high waterproof performance and further improves the safety of the vehicle. The IP protection level is composed of two digits, and the second digit indicates the waterproof level. For example, IPX9, "9" indicates the waterproof level. V&T electric vehicle motor controller meets the requirements of GB-T4208-2017 《Enclosure Protection Level (IP Code)》, and has successfully passed the IPX9 waterproof test of a third-party testing agency. It has high waterproof performance and further improves vehicle safety. V&T Electric Vehicle Motor Controller IPX9 Test During the high-temperature and high-pressure water spray test, the water temperature is as high as 80℃, and the water pressure is 10Mpa, spraying to the shell of the motor controller of the V&T electric car in all directions for 3 minutes. After the test, no water inside the motor controller was found, and no harmful effects were found. The test results met the requirements of the IPX9 standard, and the product has safe waterproof performance. V&T Electric Vehicle Motor Controller IPX9 Test The IPX9 protection level fully reflects the safe waterproof performance of the V&T electric vehicle motor controller, and reflects the company's strong technological innovation and independent research and development capabilities in the field of new energy vehicles. It is one of the company's comprehensive strengths. V&T will continue to innovate to provide safer and more reliable electric vehicle motor controller products for the new energy vehicle industry. ⬛ For V&T ( Part of Electric Vehicle Motor Controller ) Established in 2006, Shenzhen V&T Technologies Co.,Ltd. is a well-known supplier of industrial automation and new energy electric control products. In 2016, it was listed on the Growth Enterprise Market of the Shenzhen Stock Exchange (stock code: 300484). The headquarter locates in Shenzhen, and has two R&D centers in Shenzhen and Wuxi, as well as the Guangdong New Energy Vehicle Drive and Control Engineering Technology Research Center, the Postdoctoral Innovation Practice Base, and the BYD Semiconductor Joint Innovation Laboratory. The company has over ten years of platform technology accumulation and rich application experience in the automotive industry. The supporting products include: main drive electric control, auxiliary drive electric control and all-in-one integrated electric control etc. The product power ranges from 1kW to 355kW, providing various electric control system solutions such as battery electric vehicles, hybrid vehicles, and fuel cell vehicles, covering the needs of commercial vehicles, passenger vehicles, special vehicles and other automotive applications. The company enjoys high customer’s trust and industry reputation, and directly or indirectly serves dozens of well-known domestic new energy vehicle companies, such as FOTON, SUNWIN, DONG FENG, KING LONG, HIGE...

Hardware E5 V5 V6 Digital input terminal X1~X4 X1~X7/DI X1~X7/DI Support DI input NO YES YES Digital putput terminal 1（Y1） 2（Y1 and Y2/DO） 2（Y1 and Y2/DO） Relay 1（RA-RB-RC) 1（RA-RB-RC) 1（RA-RB-RC) Analog 2（AI1 and AI2） 3（AI1、AI2、AI3） 3（AI1、AI2、AI3） Analog input support +10V~-10V NO YES(AI3) YES(AI3) Analog output 2 2 2 Support DO output NO YES(Y2/DO) YES(Y2/DO) Support dual 485 NO (*) YES YES Support operation panel 485 YES YES YES Support extension card NO(*) YES YES Support built in braking unit 15kw and below power built in as standard. 15kw and below power built in as standard. 15kw and below power built in as standard. Other power class only support external braking unit. 18.5kW~75kW braking unit can be optional. 18.5kW~75kW braking unit can be optional. 90kW and above only support external braking unit 90kW and above only support external braking unit (*)Note：If E5 series need terminal 485 or support extension card, should order non-standard control board. Vector control 1 without encoder speed feedback P0.03=0 YES YES YES P0.03=1 YES YES YES P0.03=2 NO YES YES P0.03=3 NO YES YES Vector control 2 without encoder speed feedback P0.03=4 NO YES YES P0.03=5 NO YES YES P0.03=6 NO YES YES P0.03=7 NO YES YES Vector control 2 with encoder speed feedback P0.03=8 NO NO YES P0.03=9 NO NO YES P0.03=10 NO NO YES P0.03=11 NO NO YES Torque control Torque control without encoder NO NO YES Torque control with encoder NO NO YES Other Default braking voltage 750 720 720 X1/X2 terminal delay YES NO NO Y1 terminal and relay delay and pulse width setting YES NO NO Pump and fan control YES NO NO Sleep and wake up YES NO NO Acceleration and deceleration time auto switch YES NO NO View user continuous running time YES NO NO View user total running time YES NO NO Output if continuous running time arrive YES NO NO Output if total running time arrive YES NO NO Force energy saving rate setting YES NO NO Force waking up YES NO NO Output sleeping status YES NO NO PID function YES YES YES Setting pressure reference Mpa YES NO NO Statis auto-tuning YES YES YES Rotating auto-tuning NO YES YES

◆ First step, must disconnected from the load. If the motor can be disconnected from the load, it can select rotation auto-tuning (P9.15=2), or it can select static auto-tuning only. ◆ If the inverter power does not match the motor power, select static auto-tuning. after the tuning, manually change the no load current P9.05 to about 40% of the motor rated current P9.04 ◆ Setting P0.01=5，recover parameter to factory setting ◆ Setting motor basic frequency P0.15 according to motor nameplate ◆ Setting motor rated voltage P0.12 according to motor nameplate ◆ Setting motor pole P9.01 according to motor nameplate ◆ Setting motor rated rotation P9.02 according to motor nameplate ◆ Setting motor rated power P9.03 according to motor nameplate ◆ Setting motor rated current P9.04 according to motor nameplate ◆ Setting P9.15=1 and pressure RUN key to perform static auto-tuning ◆ Setting P9.15=2 and pressure RUN key to perform static rotating-tuning, if perform rotating-tuning, should be careful because the motor will be run after pressure RUN key. ◆ After auto-tuning, the motor will stop auto.