Attachment: QJ71LP21S-25 Mitsubishi PLC

Low-voltage electrical appliance definition Low-voltage electrical appliances refer to appliances with rated voltages below 1200V AC and 1500V DC. In China’s industrial control circuit, the most commonly used three-phase AC voltage level is 380V, and other voltage grades are only used in specific industry environments, such as 127V for electric drills under coal mines, 660V […]

General stepper motor drivers are constant current chopping. So, in practical applications, what effect does the driver drive voltage and driver set current have on the performance of the stepper motor? In general: voltage affects speed and current affects torque. The torque frequency characteristics of stepper motors are all tested under a certain current and […]

First, several maintenance examples of common voltage electrical faults 1, voltage circuit breaker failure If the contact is overheated, it can smell the distribution control cabinet. After checking, the moving contact is not fully inserted into the static contact, and the contact pressure is not enough, resulting in a decrease in the switch capacity and […]

The level sensor is a branch of the level sensor. The level measurement is a branch in the level measurement. The level refers to the interface position between liquid, powdery solid and gas in the storage container or industrial production equipment. According to the detailed use, it is divided into liquid level sensor, level sensor […]

1 basic parameters of the resistor: Engineers who are new to hardware circuit design may have a first impression of resistance. The resistance of the conductor described in the physics book to the current is called resistance. It is represented by the symbol R, in ohms, kiloohms, and megaohms. , KΩ, MΩ said. The main […]