ABB NPSM04 Power Supply

ABB NPSM04 Power Supply

Basic Information

Input Characteristics

Voltage range: It has a wide input voltage range, which can usually be adapted to many different grid conditions. For example, its input voltage range may be 85 - 264V AC (alternating current) with a frequency of 47 - 63 Hz. This wide range of input voltage adaptability allows it to work stably under the grid conditions of different countries and regions, reducing the risk of equipment failure due to fluctuations in grid voltage.

Input Current: Under the rated input voltage, the size of the input current is related to the power of the power supply. It will be reasonably designed according to the requirements of output power to ensure that it will not cause excessive burden on the power grid during normal operation.

Output Characteristics

Voltage Output: Provides a stable direct current (DC) output voltage, which is a common operating voltage for many devices (such as PLCs, I/O modules, sensors, etc.) in industrial automation systems. Common output voltages include 24V DC. The output voltage has a high degree of accuracy, e.g., the error range may be between ±1% - ±3%, and can provide reliable power support for connected devices.

Current and Power Output: The amount of output current determines how many devices or how powerful it can power. It has a certain power output capability, for example, the output power may be 100W or higher (depending on the model). The output current may be of various sizes, such as 4A, 5A, etc., to meet the needs of different load devices. According to the formula P = UI (P is power, U is voltage, I is current), the corresponding output power can be calculated to determine the number of devices that can be connected and the power range.

Functional features

High stability

Voltage stabilisation technology: It adopts advanced voltage stabilisation circuit design, which is able to keep the output voltage stable in the case of input voltage fluctuation and load change. For example, when the number of connected devices suddenly increases or decreases (i.e. load changes), it can automatically adjust the output to ensure that the output voltage is always stable near the set value. This stability is very important for voltage-sensitive industrial equipment to ensure normal operation and reduce equipment failures caused by unstable voltage.

Perfect protection function

Overcurrent protection: When the output current exceeds the rated current, the power supply will automatically activate the overcurrent protection mechanism. This may include limiting the output current or cutting off the output to prevent the power supply and connected equipment from being damaged by excessive current. For example, if a short-circuit fault occurs in a device, resulting in an instantaneous increase in current, the power supply will quickly detect and take protective measures to protect other connected devices from being affected.

Overvoltage protection: In the event of an abnormally high output voltage, the overvoltage protection function will be triggered to protect the connected devices from damage caused by excessive voltage. This protection mechanism is usually realised by internal voltage monitoring and control circuitry. Once an overvoltage condition is detected, the power supply will take measures to stabilise the output voltage within a safe range or cut off the output.

Short-circuit protection: If a short-circuit condition occurs at the output, the power supply will not be damaged, but will automatically cut off the output current. After the short-circuit situation is lifted, some power supplies can also automatically return to normal operation, which greatly improves the reliability of power supplies in complex industrial environments and reduces maintenance costs and downtime.

High reliability

Component quality and design: Adopting high-quality electronic components and reliable circuit design, it can operate stably for a long time in harsh industrial environments. For example, it can operate normally in a temperature range of - 20°C - + 70°C and still maintain stable performance under high relative humidity (e.g. 5% - 95%). At the same time, it also has a certain degree of anti-electromagnetic interference capability, can resist electromagnetic interference generated by other equipment in the industrial field, to ensure the stability and reliability of the power supply output.

Application Scenarios

Industrial automation control system

Equipment power supply support: In the factory automation production line, it provides stable power supply for various equipments. For example, it provides 24V DC power supply for PLC (Programmable Logic Controller), I/O terminal unit, sensors, actuators and other equipment. In automobile manufacturing lines, we provide power support for devices such as PLCs that control robot movements, sensors that detect the position of parts, and actuators that drive motors, to ensure the efficient and stable operation of production lines.

Process Control System

Power supply for process equipment: In process control systems of chemical, petroleum, electric power and other industries, it serves as the power supply for various control equipment and instruments. For example, in the chemical production process, it provides power support for temperature controllers, pressure transmitters, flow control valves and other equipment to guarantee the accuracy and reliability of process control.

Intelligent Building Automation System

Building equipment power supply applications: play a role in HVAC (heating, ventilation and air conditioning) systems, lighting systems, lift systems, etc. in intelligent buildings. For example, it provides power for temperature sensors, air-conditioning unit controllers in the HVAC system, intelligent lamp controllers in the lighting system, and control panels in the lift control system, etc., to achieve automated control and energy management of equipment in the building.