A frequency converter is a power electronic device that can change the frequency of an AC power source to control the speed and output power of a motor. Inverters are widely used in industry, aviation, metallurgy, petroleum, chemical industry, electric power and other fields, which is of great significance for improving production power, saving power and reducing costs.
1. Industrial use
In the field of industrial automation control, inverters are widely used in motor speed regulation, flow control, temperature control, etc. For example, the inverter can be used for the control of machine tools, fans, pumps, compressors, conveyor belts and other equipment, and the speed and output power of the motor can be adjusted to achieve the best control and optimal operation of the equipment.
2. Aviation use
In aviation, frequency converters can be used in the power control and power system of aircraft. For example, the inverter can be used to control the speed and output power of the aircraft engine, so that it can adhere to the best state in different flight stages; The inverter can also be used in the aircraft power system to realize the conversion and transmission of electric energy, and improve the power and reliability of the power system.
3. Metallurgical use
In the metallurgical profession, frequency converters can be used to regulate furnace temperature, control the smelting process, improve equipment power, etc. For example, the inverter can be used for the control of electric furnaces, converters, rolling mills, cooling towers and other equipment, and the speed and output power of the motor can be adjusted to achieve the best control and optimal operation of the equipment.
Fourth, the use of petrochemical industry
In the petrochemical industry, the inverter can be used in oilfield exploitation, chemical production, water treatment, etc. For example, the inverter can be used for the control of oil pumps, centrifuges, mixers, filters, compressors and other equipment, and the speed and output power of the motor can be adjusted to achieve the best control and optimal operation of the equipment.
5. Electricity use
In the power industry, frequency converters can be used for grid dispatching, generator speed regulation, transformer control, etc. For example, the inverter can be used in power grid dispatching, after adjusting the speed and output power of the motor, balance the load of the power grid, and realize the stable operation of the power system; Inverters can also be used in generator speed regulation and transformer control to improve the power and reliability of generators and transformers.
In general, the inverter is a very important power electronic device, which is widely used in various occupations and fields. Its use not only improves the output power and product quality, but also saves power and reduces costs, which is of great significance.
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The relationship between Reynolds motion control and frequency converters
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The distance between the Reynolds frequency converter and the motor determines the cable and wiring method
1. The interval between the inverter and the motor should be as short as possible. This reduces the cable's capacitance to ground and reduces the source of disturbance.
2. The control cable is shielded cable, the power cable is shielded cable or from the inverter to the motor.
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Protection feature of overcurrent trip - Renol
1. Maintenance objectives of overcurrent
In the frequency conversion speed regulation system, there are two devices: the frequency converter and the motor. The degree of tolerance to overcurrent is not the same. The planners of the production machinery decide on the capacity of the motor based on the principle of heat. That is, as long as the electricity ...
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Reynolds drives RNB1000 series fault code resolution
Reynolds inverter fault codes:
E.bC
Reynolds inverter fault phenomenon/type:
Brake unit failure
Reynolds inverter failure may be caused:
1. Brake line failure or brake ...
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The inverter protects the motor - Reynolds inverter
1. The output of the inverter for overvoltage maintenance has the function of voltage detection, and the inverter can actively adjust the output voltage, so that the motor does not bear the overvoltage, and the motor runs within the set voltage range.
2. Undervoltage maintenanceWhen the voltage of the motor is lower than 90% of the normal voltage (some are set to 85% ...
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Operating instructions for the Reynolds control panel
1. FUN button; Press the FUN button to enter the settings menu F00;
2. Press and hold the up button or down button to scroll to the code that needs to be set;
3. Press the FUN button to confirm at this moment, and adjust the entry parameters to the required value;
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The main circuit of the inverter is composed of Reynolds
When it comes to inverter repair, it's not enough to understand the above fundamental circuits, but also to understand the following primary circuits. The main circuit is mainly composed of rectifier circuit, current limiting circuit, filter circuit, braking circuit, inverter circuit and detection and sampling circuit.
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Difference Between Soft Starter and Inverter – Reynolds
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Reynolds EPS emergency power supply routine maintenance
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What inverter to choose what occasion - Reynolds
We need to ensure that the capacity of the inverter is matched. First of all, according to the nature of the load, the correct selection of the type of inverter.
When selecting the inverter, the current value of the actual motor should be used as the basis for the selection of the inverter, and the rated power of the motor can only be used as a ...
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The cause of the damage of the inverter - Reynolds inverter
What are the causes of inverter damage?
First, the heat dissipation of the inverter is not good
In fact, we all know that too high a temperature can have a damaging effect on any device, just like the human brain, too high a temperature can also burn out the brain ...
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Inverter control loop wiring taboo - Reynolds
1. The wires laid out in the inverter control circuit should be separated from the main circuit cable (power line), so as to avoid the harmonic disturbance components on the side of the main circuit of the inverter from polluting the inverter control circuit;
2. Due to the faulty signal of the inverter and ...
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Inverter maintenance power-on test instructions - Reynolds
First, the inverter is not repaired and the power test is tested
(1) Inverter repair test rectifier circuit
At the two ends of the inverter to detect the internal DC power supply, P and N ends, adjust the multimeter to the resistance RX10 gear, the red watch pen is connected to the P end, and the black watch pen is connected to R, S, T, and there are tens of ohms under normal conditions.
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Reynolds inverter parameter settings
The use of Reynolds inverters in industrial production is very important, in addition to speed regulation, soft start effect, the important thing is to be able to save energy. There are many functional parameters of Reynolds inverter, and there are generally dozens or even hundreds of parameters for users to choose. In practice, it is not necessary to ...
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Inverter power and box structure selection - Reynolds
First, the selection of inverter power
The system power is equal to the product of the inverter power and the motor power, and the system power is higher only when both are operating at a higher power. From the perspective of power, when selecting the power of the inverter, we should pay attention to the following points:
1) ...
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Introducing the Reynolds JJR8000 series of intelligent soft starters
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Abnormal handling of inverter series reactor - Reynolds
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Reynolds-5G empowers the paper industry to improve quality and efficiency of the industrial IoT control system
From September 23rd to September 25th, 2020, the 2020 China International Paper Technology Exhibition was held in Hall D1 of Suzhou International Expo Center.
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