1. Introduction

In the current era of rapidly advancing science and technology, to meet the modern people's demand for exquisite packaging of goods, the requirements for position tracking of packaging production lines are becoming increasingly higher. Applying various advanced technologies in a group integrated application manner to the packaging line in order to achieve high automation of the packaging line is extremely urgent. The FGI FD500M vector frequency converter has high control accuracy, fast response speed and strong anti-interference ability. Applying it together with PLC to form a closed-loop position controller on the packaging line has great significance. It solves many problems such as the difficulty of initial positioning by manual operation on the packaging, large positioning error, slow dynamic adjustment, and easy misalignment during transmission.

2. The technological process of tile packaging machinery

At present, the production process of tile packaging by domestic tile manufacturers includes processes such as tile loading, inspection, tile turning, paper feeding, paper folding, and packaging. Among them, the process of transporting tiles actually has higher requirements for frequency converter control. During the process of transporting tiles, it is required that the frequency converter starts and stops quickly and smoothly, so as to ensure that the tiles do not slide during the transmission process. Moreover, the position error of each shutdown should be within 2 millimeters. Only in this way can the smooth and accurate operation of each action be guaranteed, and the packaged products be aesthetically pleasing. To ensure that the shutdown position is the same each time, the frequency converter needs to be used in conjunction with the PLC and encoder. The PLC calculates the position of the tile in real time through the encoder and gives different pulse signals to the frequency converter according to the position of the tile. The highest pulse frequency is 50kHz and the lowest is 0Hz.

3. Advantages of FD500M frequency inverter in packaging machinery applications

Excellent PUL counting port, capable of accepting 100kHz pulse signals.

Smooth operation during acceleration and deceleration, with very low motor noise.

Precise current and voltage limiting function, ensuring the accuracy of the stop position.

Utilizing the latest high-speed motor control dedicated DSP and dual-core processing technology, the FD500M frequency inverter has extremely fast response speeds in all aspects.