Delta inverter is a device that converts the power supply (50Hz or 60Hz) into AC power supply of various frequencies to realize the variable speed operation of the motor, during which the control circuit completes the control of the main circuit, the rectifier circuit converts the alternating current into direct current, the DC center circuit filters the output of the rectifier circuit, and the inverter circuit reverses the direct current into alternating current.
In addition to speed regulation and soft start effect, the most important thing is to be able to save energy.
1. The composition of Delta's inverter
The inverter is generally divided into 4 parts: the rectifier unit, the high-capacity capacitor, the inverter and the controller.
Rectifier unit: converts alternating current with a fixed operating frequency into direct current.
High Capacitance: Stores converted electrical energy.
Inverter: An electronic switch composed of an array of high-power switching transistors, which converts direct current into square waves of different frequencies, widths, and fluctuations.
Controller: Work according to the set program, control the fluctuation and pulse width of the output square wave, make the alternating current superimposed as an approximate sine wave, and drive the AC motor.
Second, the function effect of the inverter
The energy saving of the inverter is mainly manifested in the application of fans and pumps. In order to ensure the reliability of production, all kinds of production machinery are designed with power drive, there is a certain amount of surplus. When the motor cannot run at full load, in addition to meeting the requirements of power drive, the excess torque increases the consumption of active power and forms a waste of electric energy. The traditional speed regulation method of fans, pumps and other equipment is to adjust the air supply volume and water supply by adjusting the baffle plate and valve opening of the inlet or outlet, and the input power is large, and a large amount of energy is consumed in the interception process of the baffle and valve. When using inverter speed regulation, if the flow requirement is reduced, the speed of the pump or fan can be reduced to meet the requirements.
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Debugging Delta's inverter method
In order to ensure the reliability of production, when Delta's inverter is planned to be equipped with power drive, in addition to meeting the power drive requirements, the remaining torque increases the consumption of active power. When using cost-effective Delta inverters to regulate the speed, if the flow requirements are reduced, by reducing the rotation of the pump or fan...
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Delta's key steps in inverter maintenance
First, the maintenance of the inverter must first check whether the sound in the operation of the motor is abnormal, including, whether the motor is in operation to form a sensation.
2. Check whether the natural environment of the inverter installation has changed. ...
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Delta's key steps in inverter maintenance
First, the maintenance of the inverter must first check whether the sound in the operation of the motor has changed abnormally, including, whether the motor is in operation to form a sensation.
2. Check whether the natural environment of the inverter installation has changed. For example, whether the operating temperature is normal. Learn more about Delta's inverter ...
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1. Control mode:
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