Industrial automation equipment such as PLC, inverter servo drive, industrial robot, etc., the main power supply is common rail power supply. The rail power supply can be installed directly in the control cabinet, which is convenient, fast, efficient and reliable, ensuring the normal operation of the equipment. With the continuous development of the industrial control industry, rail power supplies are becoming more and more diversified, and the selection of rail power supplies is becoming more and more particular.
(1) Light industrial applications: ultra-thin and economical plastic rail power supply solution
PLC control systems are common in various types of industrial control equipment, and are also very common in light industrial equipment. For example, the PLC control system of a grain dryer has low equipment power and relatively simple internal composition and application environment. However, due to its industry characteristics, it has certain requirements for space volume, vibration, and dust.
The weho ultra-thin plastic guide rail LI-PU series can meet corresponding needs in terms of size, performance, and safety certification. As shown in the figure below, after the mains power is input, a 60W LI60-20B24PU is connected through the circuit breaker and the leakage protection. It can be powered directly to the PLC main control board, or to the CNC display screen through a 24V to 5V DC/DC module.
The volume of weho's ultra-thin plastic guide rail LI-PU series is 8.7% smaller than that of products in the same industry, and can meet the needs of compact chassis applications. In terms of performance, it meets the requirements of 4000VAC high isolation withstand voltage, high interference immunity, constant current limit, overcurrent and overvoltage protection functions, etc. It also provides reliable guarantees such as a 3-year warranty and a high degree of localized materials.
(2) General heavy industry applications: efficient, compact standard rail power supply solution
As calls for cost reduction and efficiency improvement continue to rise in the general environment, the localization of equipment parts has become more and more urgent. Power supplies for automation equipment such as industrial robots, cabinets, and machine tools also have needs for cost reduction and miniaturization.
As shown in the figure below, the main power supply for the robot control box can be LIF240-10B24R2, paired with a 24V to 5V DC/DC module. The weho standard rail power supply LI/LIF series is small in size, light in weight and compact in structure. For example, LIF240-10B24R2 has an efficiency of up to 94%, and has the advantages of active PFC, 150% peak power output for 3 seconds, overvoltage level II, and compliance with IEC/UL/BS EN 62368.
weho standard rail power supply LI/LIF series (75-960W) has the advantages of high cost performance, high efficiency and energy saving, standard rail installation (35mm), compact structure, high stability and strong anti-interference ability. It is suitable for installation in small chassis and narrow spaces, and can be widely used in automation equipment, machines and other industrial equipment in external harsh environments. At the same time, the production line also has a double-sided three-proof paint series-QQ as an option, which can better adapt to harsh environments.
(3) Special heavy industrial applications: high-reliability, high-performance high-end rail power supply solutions
The petrochemical industry is characterized by high temperature and pressure, flammability, explosiveness, toxicity and harmfulness. It is a high-risk industry, and its equipment parts require great attention to reliability. Taking oil and gas refining DCS as an example, there are strict requirements on power supply reliability, safety certification, and performance. Jinshengyang high-end rail power supply LIHF960-23B24 is suitable.
In terms of reliability, the LIHF series of weho high-end rail power supplies can not only pass the double 85 verification test, meet G3 anti-corrosion, vacuum electroplating of the shell, double-sided three-proof paint on the substrate, and can prevent salt spray, explosion-proof, and 5G vibration; it also has high EMC performance level , Strong anti-interference ability, compliant with IEC/EN/UL/BSEN62368, IEC/EN/UL61010, EN61558, EN62477, GB4943, IEC60079, GB3836, NB/T31017 and other certification standards, and provides a 5-year warranty.
It is also very powerful in terms of performance, meeting 112% static power and 150% transient power for 5s. It supports ModBus communication protocol, ON/OFF remote switch function, etc., perfectly matching the needs of the petrochemical industry.