[Chemical Knowledge]：What does 24VDC mean?

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24VDC refers to a DC voltage level provided by a 24 volt DC power supply. In a circuit, voltage is the energy that the electric field can provide, and it is one of the basic physical quantities in the circuit. In industrial control systems, 24VDC is a common control voltage level, so it is very important.

24VDC power supply has a wide range of applications and is often used in many intelligent control systems. For example, automatic door system, fire alarm system, communication system, monitoring equipment and battery discharge system and so on. In addition, it can also be used in some automotive electronic systems and solar panel systems.

24 volts is a relatively low voltage level, which means that the current is relatively small. This is very important for some small devices that use low voltage for control. In addition, 24VDC is also safer than higher voltage levels, and most people will not be permanently injured if electrocuted in a 24VDC circuit.

In industrial control systems, 24VDC is not only a signal voltage, but also used to control the output. For example: the start and stop of equipment action, switching power supply, control interface and other functions. When the system is running, the common 24VDC control circuit has the following:

1. DC output. For example: connected to the pulse output signal of the PLC controller.

2. Switch output. For example: control relays and other switching equipment.

3. Motor control. For example: mechanical arm, conveying system and other equipment motor control.

4. System Interconnection and Communication. In industrial sites, multiple control systems need to exchange data and information with each other, and 24VDC is often used for such communication control.

, it should be noted that the voltage level of 24VDC is a voltage standard. Under normal circumstances, different devices need to select the appropriate voltage level according to the actual situation. In practical applications, if used improperly, 24VDC may also bring some safety risks.

In addition to the 24VDC standard voltage, other DC voltage levels are 12VDC, 36VDC and so on. Different voltage levels have different application ranges, but in essence, they are all used to control the DC voltage level in the system.

24VDC is an important element in industrial control systems and refers to the voltage level provided by a 24 volt DC power supply. It plays a vital role in industrial control systems, for control system operation, motor control, communication and data transmission. When choosing a 24VDC circuit, it needs to be selected according to the specific application environment and equipment requirements.