Rolls-Royce A7578677 inverter

Rolls-Royce A7578677 is a frequency converter product. Inverter is a power control equipment, it through the application of frequency conversion technology and microelectronics technology, change the frequency of the motor working power supply, so as to achieve the AC motor power control. The inverter is mainly composed of rectifier (AC to DC), filter, inverter (DC to AC), brake unit, drive unit, detection unit, micro processing unit, etc., by the internal IGBT to adjust the output power supply voltage and frequency, according to the actual needs of the motor to provide the required power supply voltage, so as to achieve the purpose of energy saving and speed regulation.

The inverter has many protection functions, such as overcurrent, overvoltage, overload protection, etc., which makes it widely used in the field of industrial automation, such as for the power supply of computer power to suppress reverse voltage, frequency fluctuations and instantaneous power outage.

In addition, the inverter can also adjust the output frequency and voltage according to the needs of the motor, so as to change a certain point on the motor running curve, so that the motor running curve is parallel down. This allows the inverter to start heavy loads and allows the motor to get a large starting torque with a small starting current.

In practical applications, the frequency converter is widely used in various load types, such as crusher load, large kiln calciner load, compressor load, rolling mill load, hoist load, converter load and roller table load.

According to the conversion principle, the inverter can be divided into direct inverter and indirect inverter. According to the output voltage regulation mode, there are two types: PAM(pulse amplitude modulation) and PWM(pulse width modulation). According to the classification of control methods, there are open-loop control frequency converter and closed-loop control frequency converter.

In the selection, it is necessary to consider the motor power, voltage level, control mode, speed regulation range, load type and operating environment and other factors to ensure the stable work of the inverter, high efficiency and good reliability.

In short, the frequency converter plays a vital role in the field of power control and industrial automation, and has positive significance for improving production efficiency, saving energy and protecting equipment safety.

Solemn promise

1. All the items sold by the company, module card parts, etc., the quality problems arising from normal use during the warranty period are replaced free of charge, and there is no evasion.

2. For materials and equipment that have not been discontinued beyond the warranty period, only the cost of relevant parts will be charged for quality problems.

3. Provide replacement models and equipment replacement process services for discontinued materials and equipment.

4. Customers have purchased materials and equipment, lifetime free upgrade system software, related technical information provided free of charge.

5. Visit the use of materials purchased by customers from time to time, and solve any problems in time.

6. The company hotline provides 24-hour service, and the questions raised by customers are answered within 1 hour.

7. Not done, the company spirit of "thoughtful service, responsible to the end" attitude, from the customer's point of view to solve the problem, with serious and rigorous enterprise style, dedicated to each customer service.