1.Overview

This machine used to be DC motor, because of its large power consumption, maintenance is more troublesome, need to replace the carbon brush often, printing yield is low. From the perspective of energy saving, FGI FD300 low-voltage inverter is used to convert it, further improving the function of the system to achieve the purpose of easy use and easy maintenance, and at the same time, it can give full play to the high performance and high function of the printing press, which has good application and promotion value.

How do you make thick books, lots of newspapers, beautiful calendars, things like that? This is caused by the printing press. Printing press is a type of machine commonly used in China's printing industry, and the old models are mostly based on DC motors. Being from the 1960s and 1970s, these products are very old. Therefore, it is inevitable to transform the printing equipment with frequency conversion speed regulation, and the primary link of frequency conversion speed regulation is to choose the selection of motor and frequency inverter.

2.Implementation plans

The power of the motor and frequency inverter is determined by the power and speed of the original motor. The original DC motor power is 90 kw, 525-2100 RPM. This transformation uses Y160m-4 ordinary induction motor. The machine adopts F300 series low-voltage frequency inverter speed regulation system, rated power 132 kw,FF-300-132 g /160P-4 type.

3. Application advantages

(1)low frequency torque, with F300 series low voltage inverter, stable operation in the low frequency range. (The company's customers have adopted a type of variable frequency speed regulation system, but the results are not ideal, so they instead bought low-voltage inverter easy to FD300).

(2)Using FD300 low voltage frequency inverter, it has significant power saving effect. After field debugging, compared with ordinary DC motor, the power saving rate is as high as 40% (measured by users).

(3)After using FD300 low-voltage frequency inverter, the production efficiency has been greatly improved, while the traditional frequency converter has a higher failure rate due to more maintenance. After modification, the maintenance cycle can be greatly shortened and the production efficiency of the equipment can be improved.