After the inverter selection is completed, it is necessary to consider whether other peripheral equipment needs to be equipped according to the actual situation of the site. The peripheral equipment for frequency converter selection mainly includes circuit breakers, reactors, contactors, braking resistors, etc.
1. Circuit breaker
The circuit breaker can easily control the power-off and closure of the circuit. It is mainly used to automatically disconnect the power supply when the frequency conversion system produces re-reverse current, overcurrent, short circuit and undervoltage, so as to play an isolation role and maintain the power supply.
2. An electric scrambler
The reactor is a commonly used peripheral equipment in the selection of frequency conversion. When the interval between the inverter and the motor is too long, or the inverter and the power supply are too close, in order to improve the power factor and reduce the inrush current in the input to a minimum, a DC reactor or AC reactor must be added in the inverter selection process.
3. a contactor
Contactors are divided into input contactors and output contactors. When a component of the frequency conversion system fails, the power supply is automatically blocked to prevent the equipment from being burned out at a remote interval.
4. Brake resistance
When the general inverter is applied to inertial loads such as CNC machine tools and elevators, the inverter selection needs to use braking resistors to consume the remaining energy in the inverter system.
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Automatic gain adjustment part - Sunland inverter
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Sunland's measures to reduce inverter failure
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Misunderstandings and countermeasures of industrial control inverter - Senlan
Today, with the rapid development of science and technology, with the continuous improvement of industrial automation, inverters have also been widely used. Choosing a suitable inverter is very important to ensure the normal and efficient work of the inverter, but in practice, it is necessary to pay attention to some ...
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Learn the way of inverter - Senlan inverter
The inverter is an essential accessory in industrial use, and its main function is to regulate the speed of the motor. It is widely used in various equipment such as production F-line and machine tools. Many engineering people have touches.
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Sunland HOPE530 series inverter is a high-performance, high-reliability intelligent controller, widely used in a variety of industrial occasions. It is easy to operate, diversified equipment and high quality, and has become one of the intelligent power control equipment trusted by users.
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Overvoltage treatment method caused by load input side - Senland
(1). The deceleration time of the frequency conversion parameter is increased or free parking is adopted
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Sunland inverter wiring standard
It is necessary to separate the signal line from the power line: when using analog signals for long-distance control of the inverter, in order to reduce the disturbance of the analog amount from the inverter and other equipment, please separate the signal line of the control inverter from the strong current circuit (main circuit and sequential control circuit). Inverter ...
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The connection method of the shielded wire adheres to the principle - Senlan inverter
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Damage and repair of internal electronic components of the inverter - Hope Sunland
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Inverter control motor speed method - Senlan
1. Why can the rotation speed of the motor be changed freely?
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1. Look inside the electrical cabinet, e.g. ...
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