Click the blue text to follow us 1 Task Objective This task focuses on the analog functionality of the Siemens S7-1200 PLC, with the core scenario being “analog control of Delta frequency inverter to achieve motor speed control”. The analog module of the S7-1200 PLC can achieve dual functions: First, it outputs analog signals to … Read more
The function of an inverter is to convert the industrial frequency (50Hz or 60Hz) AC power supply into a frequency-variable AC power supply for the motor, providing speed control by changing the frequency of the AC power supply. There are many types of inverters, mainly divided into two categories: AC-DC-AC inverters and AC-AC inverters. The … Read more
The communication routine for Schneider PLC involves three function blocks: ADDM, READ_VAR, and WRITE_VAR. Below, I will introduce each of them. 1 ADDM The ADDM function block is for address conversion, which converts the physical address of the PLC into an address type recognizable by the PLC. To put it simply, it converts a string … Read more
Search on WeChatTechnical Training1. Task Control Requirements Description Use FX5U to achieve Modbus RTU communication with Mitsubishi E700 inverter, with functions: change frequency, forward, reverse, stop. As shown in Figure 1-1. Figure 1-1 FX5U and Mitsubishi Inverter E700 2. Related Basic Knowledge The case in this task is based on the application of Mitsubishi FX5U … Read more
PLC, inverters, and human-machine interfaces are important devices in modern industrial automation control. The application of these devices makes the production and manufacturing processes in factories more automated, efficient, precise, and controllable, significantly promoting the automation process of China’s manufacturing industry and making a huge contribution to the country’s modernization efforts. The touch screen is … Read more
Debugging Techniques for PLC and Inverters In industrial automation, the combination of PLC (Programmable Logic Controller) and inverters is widely applied. The PLC is responsible for controlling the inverter’s start, stop, acceleration, deceleration, and frequency adjustment to achieve precise control objectives. By employing reasonable debugging techniques, the stability and reliability of the system can be … Read more
Limited Time Offer | 5 Essential Books for Electricians （ClickBlueText, Free Materials↑↑） Today, I will mainly share a practical case involving a water level control project with PLC, inverter, and touch screen. Let’s take a look at the entire process, which you can save for future reference! ● Project Description ● EM235 Module ● Project … Read more
Over 80,000 friends have followed the industrial control WeChat platform:Technical sharing,Learning exchange,Industrial control videos Abstract: This article introduces an energy-saving retrofit system for inverters based on Siemens touch screens and PLC closed-loop control. The use of touch screens and PLCs in the closed-loop control energy-saving system allows operators to directly set target values (such as … Read more
Is industrial control software installation difficult? Here are 29 installation videos for programming software! Today, I will mainly share a practical case involving a water level control project with PLC, inverter, and touch screen. Let’s take a look at the entire process, which you can save for future reference! ● Project Description ● EM235 Module … Read more
Focus on “Jicheng Training”, specializing in automation education for 14 years It is generally believed that the inverter output voltage is 380 volts, and direct measurement should not be a problem. However, in reality, most multimeters cannot obtain correct readings when testing the inverter output voltage, and in some cases, the multimeter may even burn … Read more