Description
1. High reliability, strong anti-interference ability High reliability is the key performance of electrical control equipment. Due to the use of modern large-scale integrated circuit technology, PLC adopts strict production process manufacturing, the internal circuit adopts advanced anti-interference technology, with high reliability. The use of PLC to form a control system, and the relay contactor system of the same size, electrical wiring and switch contacts have been reduced to hundreds or even thousands of one, the fault is greatly reduced. In addition, the PLC has a hardware fault self-detection function, which can issue alarm information in time when there is a failure. In the application software, the user can also program the fault self-diagnosis program of peripheral devices, so that the circuit and equipment other than PLC in the system can also obtain fault self-diagnosis protection. In this way, the whole system will be extremely reliable. 2. Complete set, perfect function, strong applicability PLC development to today, has formed a variety of scale of serialized products, can be used in various scales of industrial control occasions. In addition to logic processing functions, PLC mostly has perfect data computing capabilities and can be used in various digital control fields. A large number of various functional units have emerged, so that PLC has penetrated into various industrial controls such as position control, temperature control, CNC. With the enhancement of PLC communication capability and the development of human-machine interface technology, it is very easy to use PLC to form various control systems. 3. Easy to learn and easy to use, welcomed by engineering and technical personnel PLC is an industrial control equipment for industrial and mining enterprises. Its interface is easy and the programming language is easy to be accepted by engineers and technicians. The graphic symbol of ladder diagram language is quite close to the expression mode and relay circuit diagram, which opens the convenient door for people who are not familiar with electronic circuits, do not understand computer principles and assembly language to engage in industrial control. 4. The design of the system has the advantages of small workload, convenient maintenance and easy transformation
PLC replaces wiring logic with storage logic, which greatly reduces the wiring outside the control equipment, greatly shortens the cycle of control system design and construction, and makes daily maintenance easier, more importantly, it is possible to change the production process after changing the program of the same equipment. This is especially suitable for multi-variety, small batch production occasions.
ABB power module features and applications
ABB power module uses advanced integrated circuit technology to integrate power devices and logic control circuits in a highly integrated, fully sealed integrated block with power function. The power module has the advantages of convenient use and reliable performance, which represents the development direction of power supply technology. Because the switching power supply has the advantages of high efficiency and small size, it is suitable for integration. Because of its low efficiency, generally about 50%, it is difficult to achieve high-power (more than 100W) integration. The power module introduced by Jimi technology refers to the switching power module, focusing on the DC/DC converter. Today's switching power modules can reach hundreds of watts or even kilowatts.
Power module products mainly include DC/DC converter module, power factor correction module, AC input module, etc. Their main characteristics are:
◆ ABB power module working frequency is high, generally 300KHz~1MHz.
◆ ABB power module size is small, ultra-thin, thickness is generally less than 20mm, light weight, generally less than 200g.
◆ ABB power module power density is large, generally 5~10W/ cubic centimeter.
◆ ABB power module is easy to use, less external components, can be expanded in parallel, and can also realize logic control and remote control.
◆ ABB power module is suitable for a wide range of power grid voltage changes. When the general AC voltage fluctuates between 150V and 280V, the output has a voltage regulator function.
◆ ABB power module temperature adaptation range is wide, can be from -55 degrees Celsius ~+100 degrees Celsius, the general high temperature substrate temperature is +85 degrees Celsius, low temperature 0 degrees, -20 degrees, -40 degrees, -55 degrees and other levels.
◆ ABB power module fully sealed package, with three anti-function, waterproof, dustproof, anti-impact.
◆ ABB power modules generally use zero voltage switch or zero current switch technology, good electromagnetic compatibility.
◆ ABB power module structure is highly standardized and easy to install.
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