Three common problems of Huichuan inverter
With the expansion of shopping malls and the diversification of customer demand, the functions of domestic inverter products are constantly improving and increasing, and the integration and systemization are getting higher and higher. Domestically produced inverters have gradually emerged and are now gradually occupying high-end shopping malls. So, when the inverter has a problem, how should we diagnose and repair it? Here is a small series for you to explain Huichuan inverter how to deal with the problem:
1, no power on or appear over voltage or under voltage. Usually because of the switch Damage to the power supply or damage to the soft charging circuit causes the DC circuit to be free of DC power, such as damage to the starting resistor and damage to the operator panel. When overvoltage or undervoltage occurs, the input phase is missing, the circuit is aging and the board is wet. The solution is to find out its voltage detection circuit and detection points to replace the damaged equipment. 2. The rectifier module is damaged. Usually it is caused by the grid voltage or internal short circuit. Replace the rectifier bridge with the internal short circuit removed. When dealing with problems on site, it is important to check the status of the user's power grid, such as the grid voltage, and whether there are equipment such as welding machines that are polluting the power grid. 3. Inverter module damage is usually caused by motor or cable damage and drive circuit problems. After repairing the drive circuit, the drive waveform is replaced in a good state, replacing the module. After replacing the drive board in the field service, pay attention to the motor and connecting cables. Run the inverter only after you have determined that there are no problems. Shanghai Kuanying Automation Equipment Co., Ltd. is a high-tech enterprise specializing in R&D, production and sales of industrial automation control products. The main products are low-voltage complete system, metallurgical Kaiping system, non-standard automation system, integration and special machine, frequency converter, servo system, PLC, HMI, permanent magnet synchronous power mainly serve the equipment manufacturing industry, energy conservation and environmental protection, new energy, three major fields Products are widely used in elevators, lifting, machine tools, metal products, wire and cable, plastics, printing and packaging, textile and chemical fiber, building materials, metallurgy, coal mining, municipal and other industries. The company ranks among the top domestic brands in the low-voltage complete market, among which the integrated and special-purpose products are in the industry's first position in many sub-sectors.