CNC Variable Frequency Drive

Description

The CNC Variable Frequency Drive serves as a power control device and comprises various essential components. These include the rectifier responsible for converting AC to DC, the filter, the frequency converter that transforms DC back to AC, the braking unit, the driving unit, the detection unit, and the microprocessor unit. By leveraging the advancements in frequency conversion and microelectronics technology, this device allows for the regulation of AC motors by altering the working power supply's frequency. Consequently, it becomes possible to adjust the voltage and frequency of the output power supply, facilitating energy conservation and speed control. Integrating the inverter swiftly into CNC equipment enables the precise customization of servo motors, motion control, and other programming aspects. This seamless integration empowers the creation of intricate components with utmost detail and precision, directly from raw materials.

Features

2. The installation of this CNC Variable Frequency Drive is extremely convenient due to its overall dimensions meeting DIN standards. It can be directly installed on DIN guide rails without requiring any additional installation materials. Furthermore, the drive can be easily connected through an interface, and an optional external keyboard is provided to ensure a more intuitive and user-friendly human-computer interaction interface. Overall, the installation process is both straightforward and hassle-free.

Efficient heat dissipation is achieved by arranging the electronic components in a logical manner and incorporating a porous heat dissipation structure in the shell. This design allows for ample heat dissipation space, ensuring that the entire equipment operates at a lower temperature and enjoys an extended lifespan.

An adjustable speed design is implemented in the inverter by integrating an external braking resistor and potentiometer. This feature enables the inverter to enhance its sensitivity and efficiency in machining operations performed at different speeds. The inverter's ability to support fast acceleration and deceleration settings allows for quick adjustments, resulting in enhanced performance during various machining processes.

The inverter boasts several safety mechanisms to ensure the smooth and secure operation of the equipment. It comes equipped with various protection features like overcurrent, overload, and overvoltage protection to safeguard against any untoward incidents. Furthermore, it has an automated system that continuously monitors the machine tool's status for any abnormalities and produces appropriate alarm signals promptly. The system's comprehensive safety features enable it to function seamlessly, ensuring maximum uptime and protecting the operators.

Function

1. Frequency conversion energy saving

2. Application in automation system

The use of artificial intelligence in the manufacturing industry can greatly improve process level and product quality. AI can analyze vast amounts of data and identify areas for improvement in the production process, leading to increased efficiency and reduced waste. It can also predict potential defects or quality issues in products, enabling timely intervention and prevention. By using AI-powered tools, manufacturers can achieve greater consistency and accuracy in their products, ultimately enhancing customer satisfaction.

4. Realize motor soft start

Selection of frequency converter

When selecting an inverter for production machinery, it is important to consider the specific requirements such as speed regulation range, static speed accuracy, and starting torque. The suitable inverter should not only be user-friendly but also cost-effective while meeting the basic conditions and technological requirements of the production process. It is crucial to ensure that the selected inverter not only fulfills the necessary criteria but also provides the necessary control method for optimal performance. By carefully assessing these factors, the most appropriate and efficient inverter can be determined for the specific production machinery.

The motor to be controlled and the inverter itself

1) The number of poles of the motor. Generally, the number of motor poles is not more than (extremely suitable, otherwise the inverter capacity should be appropriately increased.

2) Torque characteristics, critical torque, acceleration torque. In the case of the same motor power, the inverter specification can be derated compared to the high overload torque mode. 

3) Electromagnetic compatibility. In order to reduce the main power interference, a reactor can be added to the intermediate circuit or the input circuit of the inverter, or a pre-isolation transformer can be installed. Generally, when the distance between the motor and the inverter exceeds 50m, a reactor, a filter or a shielded protective cable should be connected in series between them.

Selection of inverter power

The system efficiency is equal to the product of the inverter efficiency and the motor efficiency. Only when both of them work at higher efficiency, the system efficiency is higher. From the point of view of efficiency, the following points should be paid attention to when selecting the inverter power:

1) It is most suitable when the power value of the inverter is equivalent to the power value of the motor, so that the inverter can operate at a high efficiency value.

2) When the power classification of the inverter is different from that of the motor, the power of the inverter should be as close as possible to the power of the motor, but it should be slightly larger than the power of the motor.

3) When the motor is frequently started, braked or under heavy load starting and works frequently, a larger inverter can be selected to use the inverter for long-term and safe operation.

4) After the test, the actual power of the motor is indeed surplus. You can consider choosing a frequency converter with a power smaller than that of the motor, but pay attention to whether the instantaneous peak current will cause overcurrent protection.

5) When the power of the inverter and the motor are not the same, the settings of the energy-saving program must be adjusted accordingly, so as to achieve a higher energy-saving effect.

Power and Frequency

400hz 650hz 800hz 1600hz 3200hz

800w 1.5kw 2.2kw 3kw 4kw 5.5kw 7.5kw 9kw 11kw 15kw

Product Specification

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