With the continuous improvement of industrial automation, Inverters  have also been widely used. Inverter  (VFD) is a power control device that uses frequency conversion technology and microelectronics technology to control AC motors by changing the frequency of the motor's working power supply. Inverters  are high-tech products with high technological content, high added value, and good returns. They are industrial products that comply with national industrial development policies. Inverters have a development history of nearly 30 years in China, as a power control equipment that utilizes frequency conversion technology and microelectronics technology to control AC motors. In the past few decades, Inverters  have made certain achievements in industrial scale, application fields, and product functions. The Inverter  industry faces many challenges. Affected by national macroeconomic regulation, investment in some industries has been directly suppressed, directly affecting various automation products such as Inverter s, PLCs, and HMIs. The large PLC market in China is basically flat with almost no growth, mainly affected by the decrease in regulatory investment in the metallurgical industry. This industry regulation will mainly affect the basic industries of the country, corresponding to low-voltage Inverter s, and mainly affect the project oriented market of their applications, such as metallurgy, power, oil and gas, chemical and other industries. So what is the current development status of Inverters in China? A Inverter  is an electrical energy control device that utilizes the on-off effect of power semiconductor devices to convert a power frequency power supply to another frequency. The Inverter  we are currently using mainly adopts the AC-DC-AC mode (VVVF frequency conversion or vector control frequency conversion). Firstly, the power frequency AC power supply is converted into a DC power supply through a rectifier, and then the DC power supply is converted into an AC power supply that can be controlled by both frequency and voltage to supply the electric motor. The circuit of a Inverter  generally consists of four parts: rectification, intermediate DC link, Inverter, and control. The rectifier part is a three-phase bridge uncontrollable rectifier, while the Inverter  part is an IGBT three-phase bridge Inverter  with a PWM waveform output. The intermediate DC link is filtering, DC energy storage, and buffering of reactive power. AC motor variable Inverter speed regulation has become the trend of contemporary motor speed regulation. Its small size, light weight, large torque, high accuracy, strong functionality, high reliability, easy operation, and easy communication functions are superior to any previous speed regulation method. Therefore, in steel, non-ferrous metals, petroleum, petrochemical, chemical fiber, textile, machinery, power, electronics, building materials, coal, medicine, papermaking, injection molding, cigarette, crane, urban water supply Central air conditioning and sewage treatment industries are widely used. The article introduces the introduction of frequency conversion speed regulation technology in developed countries such as Japan, the United States, and Europe into the Chinese market and the rise of domestic enterprises, and points out that Inverters are developing towards high-performance, modular, specialized, and multifunctional technology. The continuous increase in usage, the continuous decrease in prices, and the merger of industry combinations have the potential to expand overseas.  AC motor variable frequency speed regulation has become the trend of contemporary motor speed regulation. It has advantages over any previous speed regulation method, such as small size, light weight, large torque, high accuracy, strong functionality, high reliability, easy operation, and easy communication, such as pole change speed regulation, voltage regulation speed regulation, slip speed regulation, cascade speed regulation, commutator motor speed regulation, hydraulic coupling speed regulation, and even DC speed regulation. Therefore, it is widely used in the industries of steel, non-ferrous metals, petroleum, petrochemicals, chemical fibers, textiles, machinery, power, electronics, building materials, coal, medicine, papermaking, injection molding, cigarettes, cranes, urban water supply, central air conditioning, and sewage treatment. The development of motion control systems is the power converter in motion control systems, and motion control systems are the development of electrical transmission technology as electromechanical energy converters. The current motion control system is a technical field that encompasses multiple disciplines, and the overall development trend is: AC driven, high-frequency power converters, digital, intelligent, and networked control. Therefore, as an important power conversion component of the system, frequency converters have developed rapidly by providing controllable and high-performance variable voltage variable frequency AC power sources. The Development Trend of Inverters in China The development trend of Inverter  technology has gone through about thirty years of research and application practice. With the application of new power electronic devices and high-performance microprocessors, as well as the development of control technology, the performance price ratio of frequency converters is getting higher and smaller, while manufacturers are still continuously improving reliability to achieve further miniaturization, lightweight, high-performance, multifunctional, and pollution-free Inverters. The performance of a Inverter  depends on the impact of the harmonics of its output AC voltage on the motor, the harmonic pollution to the power grid and the input power factor, and the energy loss (ie efficiency). Taking the AC-DC-AC Inverter  as an example, it will further develop in the following aspects from a technical perspective: 1. The power switch components of the main circuit are self turned off, modularized, integrated, and intelligent, with increasing switching frequency and further reducing switching losses. 2. In terms of the topology structure of the main circuit of the Inverter : The grid side converter of the Inverter  often uses a 6-pulse converter for low voltage and small capacity, while multiple Inverter s with more than 12 pulses are used for medium voltage and large capacity. The load side converter often uses two-level bridge inverters for low voltage and small capacity, while multi-level inverters are used for medium voltage and large capacity. 3. Control method of pulse width modulation variable voltage Inverter : Sine wave pulse width modulation (SPWM) control. PWM control to eliminate specified harmonics. Current tracking control. Voltage space vector control (flux tracking control). 4.  Progress in variable frequency adjustment control methods for AC motors: from scalar control (V/f control and slip frequency control) to vector control and direct torque control with high dynamic performance. Develop vector control and direct torque control systems without speed sensors.   Our team of experienced professionals is dedicated to delivering personalized services that exceed our customers' expectations. We offer a diverse range of services,including after-sales and maintenance, among others. Our team is composed of experienced engineers and technicians who are highly skilled in the maintenance and troubleshooting of Inverters.  In conclusion, Rockss Automation Technology Co. Ltd. is the perfect partner for all your automation needs. Whether you need Inverters for industrial, manufacturing, or commercial purposes, we have it all. Our commitment to providing quality products and services at competitive prices, coupled with our experienced team of professionals, is what sets us apart. Contact us today and let us help you streamline your automation needs.

Fault symptom 1: 1. Phenomenon description: Touch does not respond, click on the screen cursor and it does not move. 2. Reason analysis: ① Is the driver installed correctly; ② Whether the connection line between the touch screen and the touch card is normal; ③ Whether the connection line between the touch card and the mainboard is normal; ④ Whether the touch screen or touch card is damaged or abnormal; ⑤ Is there any error message in the operating system (Windows); ⑥ Is there any hardware or software conflict or incompatibility between the operating system (Windows) and the touch screen. 3. Solution: ① Install the driver correctly, and pay attention to two points: one is to remove the RS232 interface option during the installation of the resistance screen driver (see the manual for details), and the other is that the capacitive screen does not require manual installation of the driver, and the operating system (Windows) will automatically recognize it; ② Check whether the connection line between the touch card and the built-in USB plug on the motherboard is normal. Re plug or replace the line to test, but pay attention to the correct position and direction of the plug to avoid circuit burning; ③ Check whether the connection line between the touch screen and the touch card is normal. Re plug or replace the line to test, but pay attention to the correct position and direction of the plug to avoid circuit burning; ④ Check if the touch screen or touch card is damaged, replace the touch screen or touch card for testing; ⑤ If an error message appears in the operating system (Windows), you can choose to replace another host or reinstall the operating system; ⑥ When there is a hardware or software conflict or incompatibility between the operating system (Windows) and the touch screen, please replace the operating system version.   SIEMENS 6AV6643-0CD01-1AX1 Touch Panel Fault phenomenon 2: 1. Phenomenon description: The touch position and display cursor position are different (deviated or reversed, or the main and secondary screens are reversed). 2. Reason analysis: ① Whether incorrect calibration has been carried out; ② The resolution of the display was changed without calibration; ③ Is there any electromagnetic interference from other high-frequency devices on the current touch card; ④ The touch screen or touch card may be damaged or abnormal; 3. Solution: ① To calibrate a resistive touch screen, it is necessary to first clear and calibrate it using the driver program, and then use a linear setting of 9 or 25 points to accurately calibrate it. At the same time, it should be noted that when making calibration settings, the eyes must be perpendicular to the calibration point on the screen, and then use a touch pen to click on the center point; In general, capacitive screens do not require calibration operations. First, check whether the connection between the touch screen cable and the touch card is loose or skewed. After power off, reconnect correctly. If manual calibration is required, open the Tablet PC in the control panel, click on calibration, and follow the prompts on the screen to calibrate; ② Recalibrate at the new resolution (calibration method as above); ③ Replace the connection cable between the touch card and the motherboard (you can choose a cable body with a magnetic ring and pay attention to the correct plug direction and position), or move the touch card to a place with less interference for testing; ④ Replace the touch screen or touch card before testing.     6AV6643-0BA01-1AX0 SIEMENS Touch Screen Fault phenomenon 3: 1. Phenomenon description: The cursor is fixed at a certain point on the screen 2. Reason analysis: ① Whether incorrect calibration has been carried out; ② The touch screen is installed too tightly or with deviation, and the outer frame is pressed inside the touch area; ③ The touch screen or touch card may be damaged or abnormal. 3. Solution: ① Perform correct calibration again (the same method as fault 2 ①); ② Adjust the tightness of the screen border appropriately or reinstall the touch screen; ③ Replace the touch screen or touch card before testing.     Allen-Bradley 2711P-T15C21D8S Terminal Fault phenomenon 4: 1. Phenomenon description: No response in a certain area of the touch screen 2. Reason analysis: ① Whether incorrect calibration has been carried out; ② Whether it matches the current drive; ③ The screen may be damaged or abnormal. 3. Solution: ① Perform correct calibration again (the same method as fault 2 ①); ② Uninstall the incorrect driver, restart, and then install the correct driver (see instructions for installation methods); ③ Replace the touch screen or touch card before testing.       Beijer Mac Mta E700 Panel Fault phenomenon 5: 1. Phenomenon description: The cursor jumps on the screen 2. Reason analysis: ① Is the current touch card experiencing excessive temperature or electromagnetic interference from other high-frequency devices; ② The power supply of the touch card is unstable; ③ The touch screen or touch card may be damaged or abnormal. 3. Solution: ① Replace the connection cable between the touch card and the motherboard (you can choose a cable body with a magnetic ring and pay attention to the correct direction and position of the plug), or lower the temperature of the touch card or move it to a place with less interference for testing; ② Replace the power adapter or better quality plug; ③ Replace the touch screen or touch card before testing.      With a vast inventory of various brands and models, we offer a seamless blend of sales and repair services. Whether you're looking to acquire new touch screens or repair your existing ones, Rockss Automation has got you covered. Our team of dedicated experts understands the importance of customer satisfaction and strives to provide exceptional service that is tailored to your unique requirements. We take great pride in our attention to detail and commitment to providing only the highest quality products and services.

With the development of information technology, touch screens, with their advantages such as ease of use, durability, fast response speed, and space saving, have made system designers increasingly feel that using touch screens does have significant advantages. What is touch screen and what types of touch screens are there? Let's learn more together! SIEMENS 6AV6643-0BA01-1AX0  Touch Screen What is a touch screen? Touch screen, also known as "touch panel", is an inductive liquid crystal display device that can receive input signals such as contacts. When touching graphic buttons on the screen, the touch feedback system on the screen can drive various connection devices according to pre programmed programs, which can replace mechanical button panels and create dynamic audio and video effects through the LCD display screen. As the latest computer input device, touch screen is currently the simplest, convenient, and natural way of human-computer interaction. It gives multimedia a new look and is a highly attractive new multimedia interactive device. Mainly used for public information query, leadership office, industrial control, military command, electronic games, ordering, multimedia teaching, real estate pre-sale, etc.   Allen-Bradley 2711P-RN6 Touch Screen What are the characteristics of a touch screen? 1) Transparency directly affects the visual effect of the touch screen. Transparency has a problem with the degree of transparency. The infrared technology touch screen and the Surface acoustic wave touch screen are separated by only one layer of pure glass, and transparency can be regarded as an outstanding one. Other touch screens need to be carefully studied. "Transparency" is a very general concept in the touch screen industry. Many touch screens are multi-layer composite films. It is not enough to summarize its visual effect by using transparency only. It should include at least four characteristics: transparency Color distortion, reflectivity, and clarity can be further divided. For example, the degree of reflection includes mirror reflection and diffraction reflection. However, the diffraction reflection on the touch screen surface has not yet reached the level of a CD drive. For users, these four metrics are basically sufficient. Beijer Mac Mta E700 Panel 2) The touch screen is an absolute coordinate system, and you can simply click on it wherever you want. The essential difference from relative positioning systems like mice is the intuitive nature of being in place at once. The output data of the same point on the touch screen is required to be stable under any circumstances. If it is not stable, then the touch screen cannot guarantee absolute coordinate positioning, and the point is inaccurate. This is the problem that the touch screen is most afraid of: drift. Technically, any touch screen that cannot guarantee the same sampling data at the same point of touch has the problem of drift. Currently, only capacitive touch screens have the phenomenon of drift. Mitsubishi GT1150-QBBD-C GOT1000 Touch Panel 3) Detect touch and locate. Various touch screen technologies rely on their own sensors for operation, and even some touch screens themselves are a set of sensors. The respective positioning principles and sensors used determine the response speed, reliability, stability, and lifespan of touch screens. With a vast inventory of various brands and models, we offer a seamless blend of sales and repair services. Whether you're looking to acquire new touch screens or repair your existing ones, Rockss Automation has got you covered. Our team of dedicated experts understands the importance of customer satisfaction and strives to provide exceptional service that is tailored to your unique requirements. We take great pride in our attention to detail and commitment to providing only the highest quality products and services.  

Overload is one of the frequent faults in Mitsubishi Inverter tripping. Overload faults include Mitsubishi variable frequency overload and motor overload, which may be caused by factors such as short acceleration time, excessive DC braking, low grid voltage, and excessive load. Generally, it can be solved by extending the acceleration time, extending the starting time, and checking the voltage of the power grid. When you see overload, you should first analyze whether it is the motor overload or the Mitsubishi Inverter itself overload. Generally speaking, due to the strong overload capacity of electric motors, as long as the motor parameters in the Mitsubishi Inverter parameter table are set properly, overload is generally not likely to occur. The Mitsubishi Inverter itself is prone to overload alarms due to its poor overload capacity. We can detect the output voltage and current detection circuits of Mitsubishi Inverters to eliminate faults one by one.   The main causes of overload in Mitsubishi Inverters: 1. The main characteristic of excessive mechanical load is the heating of the motor, which can be detected by reading the operating current on the display screen. 2. The unbalanced three-phase voltage causes the running current of a phase to be too large, which leads to overload tripping. Its feature is that the motor is heating unevenly, and it may not be found when reading the running current from the display screen (because the display screen only shows one phase current). 3. The current detection part inside the Mitsubishi Inverter that malfunctioned has malfunctioned, resulting in a large detected current signal and tripping.   Mitsubishi MR-A-2000S Inverter   Troubleshooting Methods for Overloading Mitsubishi Inverters 1. Check if the motor is heating up If the temperature rise of the motor is not high, first check whether the electronic thermal protection function of the Mitsubishi Inverter is preset reasonably. If there is still margin for the Mitsubishi Inverter, the preset value should be relaxed; If the allowable current of Mitsubishi Inverter is no longer sufficient and cannot be further relaxed, and according to the production process, the overload that occurs belongs to normal overload, it indicates that the selection of Mitsubishi Inverter is inappropriate. The capacity of Mitsubishi Inverter should be increased and replaced. This is because when the motor is dragging a variable load or intermittent load, as long as the temperature rise does not exceed the rated value, it is allowed to overload for a short period of time (several minutes or dozens of minutes), while Mitsubishi Inverters do not allow it. If the temperature rise of the motor is too high, and the overload that occurs belongs to normal overload, it indicates that the motor is overloaded. At this point, the first consideration should be whether the transmission ratio can be appropriately increased to reduce the load on the motor shaft. If possible, increase the transmission ratio; If the transmission ratio cannot be increased, the capacity of the motor should be increased. 2. Check whether the three-phase voltage at the motor side is balanced If the three-phase voltage at the motor side is unbalanced, check whether the three-phase voltage at the output end of the Mitsubishi Inverter is balanced again. If it is also unbalanced, the problem is inside the Mitsubishi Inverter. Check the inverter module and its drive circuit of the Mitsubishi Inverter. If the voltage at the output end of the Mitsubishi Inverter is balanced, the problem lies in the wiring from the Mitsubishi Inverter to the motor. It is necessary to check whether all screws at the terminals have been tightened. If there are contactors or other electrical appliances between the Mitsubishi Inverter and the motor, it is also necessary to check whether the wiring terminals of the relevant appliances are tightened and whether the contact conditions of the contacts are good. If the three-phase voltage at the motor side is balanced, the operating frequency at the time of tripping shall be understood: if the operating frequency is low and vector control (or no vector control) is not used, the U/F ratio shall be reduced first; If the load can still be driven after reduction, it indicates that the previously preset U/F ratio is too high, and the peak value of the excitation current is too high. The current can be reduced by reducing the U/F ratio; If the load cannot be carried after reduction, it should be considered to increase the capacity of the Inverter; If the Inverter has vector control function, vector control should be adopted. Mitsubishi MR-A-1000S Inverter   3. Check if Mitsubishi Inverter malfunctions When the cause is not found after the above inspection, it should be checked for any malfunction. The judgment method is to measure the output current of Mitsubishi Inverter with a Ammeter under light load or no load and compare it with the operating current value displayed on the display screen. If the current reading displayed on the display screen is much larger than the actual measured current, it means that the current measurement error inside the Mitsubishi Inverter is large, and the "overload" tripping may be a misoperation.     Unleash the power of industrial automation with Rockss Automation, the leading provider of a diverse range of variable frequency drives, drivers, motors, and more. With our extensive inventory and dedicated repair team, we are your one-stop solution for all your industrial automation needs.  

　　Materials and equipment are the cornerstone of the semiconductor industry and the engine that drives technological innovation in integrated circuits. Generation 1 technology relies on generation 1 processes, which rely on generation 1 materials and equipment to achieve. 　　Semiconductor materials include wafer manufacturing materials and packaging materials. Wafer manufacturing materials include silicon wafers, masks, electronic gases, photoresists, CMP polishing materials, wet electronic chemicals, and targets. Packaging materials include packaging substrates, lead frames, bonding wires, packaging materials, ceramic substrates, chip bonding materials, and other packaging materials. 　　In terms of the supply of semiconductor raw materials, China is one of the largest suppliers of metallic silicon in the world. With the continuous promotion of domestic optimization of production capacity, the global industrial silicon production capacity has shown a gradual downward trend since 2019, reaching only 6.32 million tons in 2021. It is worth noting that although the production capacity has been gradually optimized, due to the explosion of demand for automotive chips, there has been a significant increase in industrial silicon production. 　　The overall demand for semiconductors determines the scale of semiconductor materials. With the steady expansion of the global and Chinese semiconductor market, the demand for semiconductor materials continues to grow. The data shows that the global semiconductor market size reached 555.9 billion US dollars in 2021, an increase of 26.2% compared to 2020. China's integrated circuit sales exceeded a trillion yuan, reaching 1045.83 billion yuan, an increase of 18.2% year-on-year in 2020. 　　In terms of the current situation of the global semiconductor material market, with the continuous growth of semiconductor demand, the overall scale of global semiconductor materials continues to expand. According to data, the global semiconductor material market size reached 64.273 billion yuan in 2021, an increase of 16% compared to 2020. 　　As far as the regional distribution of global semiconductor materials is concerned, Taiwan, China and Chinese Mainland rank first and second respectively, accounting for 22.9% and 18.6% respectively. Although China's market share is second at present, the overall products are still concentrated in low-end semiconductor materials, high-end photoresists, CMP polishing pads, etc. are still developing slowly, and there is a wide space for domestic substitution. 　　In 2021, the overall sales of materials reached $64.3 billion, including $40.4 billion (15-20% of manufacturing costs) for materials used in wafer front-end manufacturing and $23.9 billion for materials used in back-end packaging and testing. Wafer manufacturing materials mainly include silicon wafers, photomasks, photoresists and auxiliary materials, CMP polishing materials, process chemicals, targets, electronic specialty gases, etc. In terms of segmented wafer manufacturing, according to data statistics, in the global wafer manufacturing material market in 2020, the silicon wafer market share of the material with the highest proportion in the wafer manufacturing material market was 37%. 　　For example, the global market for silicon wafers is mainly dominated by a small number of manufacturers such as Xinyue Chemical and SUMCO. Domestic manufacturers still have significant room for improvement in large size silicon wafers, especially 12 inches. China's silicon wafer industry started relatively late, and localization is still in a continuous advanced stage,. Currently, domestic silicon wafer suppliers mainly focus on supplying 8-inch and below silicon wafers, unable to meet mainstream demand. 　　The competition pattern of semiconductor photomask is dominated by leading enterprises in the United States and Japan, with high industry concentration. The top three semiconductor photomask manufacturers in the world are Falkness in the United States, Greater Japan Printing, and Japanese letterpress printing. Among them, Falkness has a market share of approximately $1.3 billion, accounting for approximately 35% of the total market size, and CR3 accounts for 85% of the total market share. Due to the strict blockade imposed by major factories on the production technology of photomask, the semiconductor photomask market, especially in the precision processing field, is heavily monopolized. Only a few domestic enterprises, such as Wuxi Huarun and Wuxi Zhongweineng, produce 0.13 μ For photomasks above m, almost all photomasks such as HTM, GTM, and PSM rely on imports.   　　In 2021, the market size of semiconductor materials in Chinese Mainland will be about 11.9 billion US dollars. In recent years, the global share of China's semiconductor material market has continued to grow, rising from 10% in 2010 to 19% in 2021. In the future, it is expected that on the one hand, against the backdrop of accelerated growth in capital expenditure in the global semiconductor industry, the demand for materials is expected to accelerate. On the other hand, with the continuous growth of China's wafer production capacity in the global proportion, China's semiconductor materials are expected to achieve faster than the global average demand growth.

　　As early as last September, IC Insights released a research report that predicted that the global CMOS image sensor market would experience its first decline in 13 years in 2022. 　　Recently, the results released by Counter Point Research, a market research organization, confirmed this point. In 2022, the global CIS market sales reached $19 billion, a year-on-year decrease of 7%. 　　From the perspective of segmentation, smart phones, which have been the biggest driving force for the growth of the CIS market, accounted for less than 70% of the total CIS market share, a significant decline; At the same time, market demand for monitoring, PC, and other products is also declining, while the share of automobiles and industries has increased significantly. 　　Due to the contraction of the overall market, the performance of domestic CIS manufacturers last year was not very satisfactory. 　　01. 2022 Battle Report of Domestic CMOS Manufacturers 　　Weil Semiconductor 　　Last year, Weir Semiconductor frequently launched new products, with results directly following Samsung. 　　Starting in 2019, Samsung image sensors have leapt to 108 million pixels, elevating image sensor pixels to an era of 100 million pixels; Three years later, Samsung announced the launch of a 200 megapixel image sensor. By July 2022, Samsung had released the ISOCELL HP3 image sensor, causing another market sensation. This 200 million pixel image sensor has a unit pixel size as small as 0.56 microns (㎛). 　　It is true that Samsung has maintained a leading position in the image sensor market through the development of patented technology and innovative design of memory semiconductors, but the domestic research and development speed of Weir Semiconductor is not weak. In January 2022, Weir Semiconductor announced the official launch of OVB0B, which has a resolution of 200 million pixels and has the smallest 0.61 micron pixel size in the world at that time; In August, Weil Semiconductor released OVB0A, a subminiature 200 million pixel image sensor with a pixel size of only 0.56 microns, which is comparable to Samsung. 　　Since then, in areas such as security and automotive CIS, Weir Semiconductor has also frequently launched new products. For example, a new high-performance, low-power 2K 4 megapixel image sensor OS04D for consumer security and surveillance cameras; A brand new 1.3 megapixel (MP) OX01E20 System on Chip (SoC) for automotive 360 degree Surround System (SVS) and Rear View Camera (RVC). 　　The launch of new products is also worthy of Weir's investment in research and development. According to the disclosure of Weir Semiconductor's 2022 semi-annual report, Weir Semiconductor invested 1.351 billion yuan in the research and development of its semiconductor design business in the first half of 2022, an increase of 11.66% over the same period last year, and the number of research and development personnel reached 1993. 　　However, even such excellent product iteration speed cannot prevent the performance decline caused by weak market demand. According to the 2022 performance forecast disclosed by Weir, the net profit of listed companies in this year was between 800 million yuan and 1.2 billion yuan, a decrease of 73.19% to 82.13% compared to the same period last year. The net profit after deducting non profit was between 90 million yuan and 135 million yuan, a year-on-year decrease of 96.63% to 97.75%. 　　Net profit plummeted by 97%, making many people call Weir shares the "first thunder" of this year's white horse stock. With regard to the decline in performance, Weir said that due to the impact of the global COVID-19, the overall performance of the consumer electronics market, and other factors, the demand for consumer electronics represented by smart phones has been strongly impacted, which also has a greater impact on the company's main business. The shipment volume of some market segments has declined, and product sales prices are under pressure. 　　According to the financial reports disclosed by the company, the decline in profits began in the second half of last year. In the first quarter of 2022, Weir shares were still profitable, with a net profit of 896 million yuan; By the middle of 2022, the net profit was 2.269 billion yuan, with a year-on-year increase of 1.14%. In the third quarter of last year, Weir started to experience losses. According to financial reports, the net profit loss in the third quarter of last year reached 120 million yuan, a year-on-year decrease of 109%. 　　Weir Shares' Third Quarter Financial Report 　　Behind the losses, the inventory impairment loss is also an important reason for the significant decline in the performance of Weir Shares. From a prudent perspective, the inventory falling price reserves accrued by Weir Stock in 2022 were 1.34 billion to 1.49 billion yuan. 　　Since 2019, the inventory amount of Weir Shares has been rising all the way. As of the end of September 2022, the inventory balance of Weir Shares was still as high as 14.113 billion yuan, an increase of more than 6.9 billion yuan compared to the same period last year. The growth rate of memory inventory in one year was nearly doubled, and the inventory amount ranked first among the major A-share digital chip design companies. 　　However, there are also analysts in the industry who believe that the large amount of inventory impairment losses accrued by Weir Shares belongs to active destocking, which is conducive to the company's light weight in the future. 　　Gekewei 　　As the manufacturer with the largest global CIS shipment volume, Geke Micro's traditional advantage products, 2-8 megapixel mobile phone CMOS image sensors, have a gross profit margin of over 30%, and 13-16 megapixel products are gradually mass produced in the domestic supply chain. 　　From 2022, Gekewei's performance and revenue have been declining. In the first quarter of 2022, its net profit was 240 million yuan, a year-on-year decrease of 17.36%; The mid year financial report showed that the net profit was 513 million yuan, a year-on-year decrease of 20.23%; In the third quarter, net profit fell by 40% year-on-year; After the 2022 annual financial report was released, Gekewei's net profit had dropped 61.92% year-on-year, halving by more than half. 　　Gekewei also has a problem of excessive inventory. Guo Xiuyi, the director secretary of Gekewei, said that at present, the overall inventory situation of Gekewei is still at a historical high, and the market competition it faces is particularly fierce. 　　However, at present, Gekewei's inventory is mainly composed of 2 million and 5 million pixel CIS products. Given that these two products account for around 70% of the global market, the company's inventory will not have a significant decline in sales. In addition, although Geke's micro inventory is currently high (the inventory amount at the end of the third quarter was 3.895 billion yuan), the company's inventory amount at the end of last year was 3.484 billion yuan. Based on years of experience in judging the industry cycle and attaching importance to inventory management, the actual inventory growth this year has been relatively stable, while the inventory growth of some other semiconductor companies in China has even exceeded 100%. 　　Stilwell 　　The year 2022 was a turning year for STW, with the security CMOS shipping volume ranking first in the world. STW successfully listed on the Science and Technology Innovation Board, with a significant increase of 61.88% on the first day of listing. However, based on the performance in 2022, STW did not continue its upward trend. 　　Among the three listed CIS manufacturers, STW was the only one that made a loss. During the 2022 financial reporting period, STW achieved operating revenue of 2.483 billion yuan, a year-on-year decrease of 7.67%; The operating profit loss reached 130 million yuan, a year-on-year decrease of 129.74%. 　　In fact, this is not the first time that Starway has lost money. In 2019, Starway's operating revenue increased, and its current net profit fell instead of increasing. From 2018 to January to March 2021, Starway achieved operating revenue of 325 million yuan, 679 million yuan, 1.527 billion yuan, and 541 million yuan, respectively, and net profits attributable to the owners of the parent company were - 166 million yuan, - 242 million yuan, 121 million yuan, and 68629000 yuan, respectively. 　　However, Stevie subsequently reversed losses. In 2020 and 2021, the revenue of Starway was 1.5 billion yuan and 2.7 billion yuan respectively, with a year-on-year increase of 125% and 76%; The net profit was 121 million yuan and 398 million yuan respectively, with a year-on-year increase of 150% and 229%. 　　Faced with the loss in 2022, STW explained three main reasons: First, the negative impact faced by end customers gradually transmitted to upstream manufacturers, which had a significant impact on the company's main business; Second, large financial expenses caused by exchange losses and interest expenses; Third, the year-on-year significant increase in research and development expenses. 　　From the perspective of research and development, Starway has indeed made a significant investment. In Q3 2018 to 2022, the company's R&D investment was 93 million, 122 million, 108 million, 205 million, and 223 million yuan, respectively. The proportion of the company's R&D expenses in operating revenue was 28.76%, 18.00%, 7.10%, 7.62%, and 13.50%, all exceeding 5%. 　　In addition to its unstable performance, the rapid growth of Starway's inventory is also worth noting. In the first three quarters of 2022, the total assets of Starway reached 6.6 billion yuan, a year-on-year increase of 51%. The company explained that the increase in this project was caused by expanding the business scale and increasing inventory reserves. According to the financial report, the company's current inventory amounted to 3 billion yuan, an increase of 140% compared to the end of 2021. The number of inventory turnover days increased from 160.76 days to 470.07 days. Inventory that cannot be quickly liquidated has also increased the pressure on the capital chain of STW. 　　02. CIS Enterprises Start to Group 　　Overall, CIS manufacturers still have a problem of inventory backlog. The pressure for inventory adjustment in mid and low end CIS is high, and automobiles are a structural growth point. Therefore, major mobile phone CIS companies, including Sony, Samsung Electronics, Howell, and others, are still adjusting their pace with customers, and it is estimated that there will be opportunities for recovery as soon as the third quarter. 　　In fact, in terms of technological development trends, market value still has great growth potential. "However, we are currently in a downward phase of the overall environment, which should be said to be more like a conventional downward trend.". From a technical perspective, CIS still has many hot spots and features that are very suitable for new applications. For example, for AR/VR, camera CIS requires a global shutter, as well as ToF sensors, and even event based visual sensors. 　　However, the wind direction of the CIS has also begun to change. Recently, SK Hynix has restructured its CMOS Image Sensor (CIS) team to shift its focus from expanding market share to developing high-end products. Before the change, its CIS team was a single organization, but the company has now created a sub team focused on specific functions and features of image sensors. It is reported that SK Hynix is developing a new CMOS image sensor (CIS) using neural network technology, and plans to embed an artificial intelligence accelerator into the CIS. 　　According to South Korea's SBS Biz report, Sony Group President Yoshida Yoshihiro will visit Samsung's wafer factory in Pingze. He is expected to meet with Samsung's semiconductor director, Kei Kei Hyun. It is reported that Yoshida Yoshihiro's visit will also include visits to Samsung's packaging plants in Tian'an and Wenyang. It is expected that the two sides will establish a closer cooperative relationship in the semiconductor supply chain.   　　Domestically, in March this year, Hunan Xinlite Electronic Technology Co., Ltd. announced that it had officially joined Howell Group. Xinlite is a high-tech enterprise specializing in IC design, commissioned development, and sales. Has low noise, low power sensor signal processing chip design technology; In terms of products, we have an RS485 chip integrated with TVS, and we are also about to launch an integrated TVS CAN bus driver chip. Especially in the field of on-board CAN, CAN FD, and LIN interface chips, it continues to assist domestic automotive and component manufacturers in their development.

　　On January 12, Varex, the world's leading manufacturer of X-ray flat panel detectors, held a new product launch ceremony in Wuxi, launching its fifth generation low-dose 4343W X-ray flat panel detector. This X-ray flat panel detector backplane (FPXD) provided solely by BOE (Beijing Oriental) can significantly reduce the dose used for X-ray, achieving a new breakthrough in X-ray conversion efficiency. This strong alliance with Varex marks a new step for BOE's sensing business in the global high-end medical imaging field, demonstrating that its FPXD technology and processing capabilities have reached international leading levels. 　　Currently, in X-ray imaging applications, digital imaging technology is gradually replacing traditional X-ray analog imaging technology, widely used in medical imaging diagnosis, industrial non-destructive detection, and other fields. BOE's independently developed X-ray flat panel detector backplane reduces the required X-ray dose by more than 80% by optimizing the panel process, greatly improving the X-ray conversion efficiency and significantly reducing radiation damage to the human body with leading technology. 　　This time, the 4343W X-ray flat panel detector backplane provided by BOE for Varex uses a pixel design scheme with high fill rate and low noise, greatly meeting customers' low dose requirements for the detector. In terms of process innovation, BOE (BOE) has developed an industry-leading low defect PIN film process structure through internal research on PIN process optimization schemes, achieving product characteristics of low residual and high uniformity, and continuously promoting the industrialization process of medical imaging equipment through innovation. 　　As one of the important development directions of BOE, relying on the core technology and product advantages accumulated in the display field for nearly 30 years, the sensing business continues to provide global customers with sensor design, intelligent manufacturing, and system solution services. In the field of medical imaging that has been deeply cultivated in recent years, BOE has launched 1313, 1717, 2025, 2530, 3543, 4343 and the world's largest non spliced 8643, A843, B845 full-size flat panel detector backplane products. BOE has full process advantages in design and development, production intelligence, detection and evaluation technology, and has also established a flat panel detector sensor+scintillator test evaluation system, And a comprehensive integrated solution for lean quality control. Currently, BOE (Beijing Oriental) FPXD products have been widely used in high-end medical device companies in the world such as Europe, America, Japan, and South Korea, and have been widely recognized by global customers. At the same time, BOE (Beijing Oriental) has also adopted technological innovation to replace conventional amorphous silicon semiconductor materials with IGZO materials to achieve high frame rate dynamic imaging, providing clearer and accurate focus images in diagnosis and treatment scenarios such as interventional surgery and digital subtraction angiography, and continuously empowering the development of digital medicine with innovative technologies.   　　As a leading global innovation enterprise in the Internet of Things, BOE (Beijing Oriental) will enter a new journey of its 30th anniversary in 2023. In the context of the rapid development of the digital economy, BOE will continue to take innovation as the first driving force for enterprise development, with the "Screen of Things" strategy as the core, integrate more functions, derive more forms, and implant more scenarios into the screen. Together with global partners, BOE will empower thousands of scenarios, root "Powered by BOE" in thousands of industries, and promote high-quality digital development of the industry.

　　High-precision industrial X-Ray online testing industry source received tens of millions of Pre-A rounds of financing 　　36 Krypton learned that recently, the intelligent testing equipment enterprise "Gongyuan 3000" announced the completion of a round of financing of tens of millions of RMB Pre-A, led by Atomic Venture Capital and Guolian Financial Investment Zhiyuan, and invested by Huagong Technology. This round of financing will mainly be used for batch delivery of equipment, enhancement of technical reserves, and expansion of research and development and sales teams. 　　TCL Central plans to invest and build a silicon wafer project in Yinchuan for 4.1 billion yuan to expand the production capacity of G12 strategic products 　　TCL Central announced that the company has signed a project cooperation agreement with the Yinchuan Economic and Technological Development Zone Management Committee, and the company has signed a "Project Cooperation Agreement" with the Yinchuan Economic and Technological Development Zone Management Committee on investment and cooperation in the construction of a 35GW/a high-purity solar ultra-thin monocrystalline silicon smart factory and its supporting projects in the Yinchuan Economic and Technological Development Zone. The total planned investment of the project is about 4.1 billion yuan. 　　Minglida: It is proposed to invest no less than 1 billion yuan in projects such as new energy vehicle battery structures 　　Minglida announced that, in order to promote the company's better development, its wholly-owned subsidiary, Yiyang Minglida, plans to sign the "Investment Promotion Contract for Yiyang Hi-tech Industrial Development Zone" with the Management Committee of Yiyang Hi-tech Industrial Development Zone and Yiyang Hi-tech Industrial Development Investment Group Co., Ltd., agreeing to invest in the construction of a production base project for new energy vehicle battery structures, portable energy storage structures, and electrical and electronic control structures in Yiyang Hi-tech Zone, And related research and development, testing centers, etc. 　　Hangzhou Municipal Government and Geely Holding Group Sign a Strategic Cooperation Framework Agreement 　　Geely Holdings announced in an official WeChat message that the Hangzhou Municipal People's Government has signed a strategic cooperation framework agreement with Geely Holdings Group. Liu Jie, member of the Standing Committee of the Provincial Party Committee and Secretary of the Municipal Party Committee, said that the new energy and intelligent connected vehicle businesses that Geely Holdings Group focuses on developing are also pillar industries that Hangzhou focuses on cultivating. It is hoped that the signing of this strategic cooperation agreement will serve as a new opportunity and starting point for both sides to further promote their cooperation to a deeper level, wider scope, and higher level. 　　Overseas Highlights 　　Singapore independent power plant platform company Athein will raise $1 billion for solar and wind energy development 　　Singapore's IPP (Independent Power Plant) platform company, Athein, was recently established as a joint venture project with four Southeast Asian companies. The company has set ambitious goals to raise $1 billion over the next three years to finance a series of solar and wind energy projects in Australia, India, the Philippines, and Vietnam. Athein currently develops 2 GWp of operating assets and projects. 　　Johnson Controls Hitachi Air Conditioner, Hitachi China, and Green Alliance signed a strategic cooperation agreement 　　At the 16th China Japan Energy Conservation and Environmental Protection Comprehensive Forum held in Beijing and Tokyo, Johnson Controls Hitachi Air Conditioning Technology (Shanghai) Co., Ltd. signed a "strategic cooperation agreement on jointly promoting the green and low-carbon development of China's development zones" with Hitachi (China) Co., Ltd. ("Hitachi") and the National Economic and Technological Development Zone Green Development Alliance ("Green Alliance"). According to the agreement, the three parties will combine the resource platforms and networks of Lvmeng's national economic and technological development zones, provincial economic development zones, and international cooperation parks with the technical forces of Hitachi and Johnson Controls to contribute to the carbon neutrality of China's development zones in the fields of green buildings, clean energy, and digital transformation. 　　"Black sesame intelligence and Zhongke Huiyan jointly developed the height limit anti-collision warning system, which has been designated for mass production of front-end equipment in large host plants."   　　Black sesame intelligence announced that the height limit anti-collision warning system jointly developed with Zhongke Huiyan has been designated for the front loading and mass production of special vehicle chassis projects for large domestic main engine manufacturers. As a standard vehicle chassis configuration in this project, this system will be widely used in dedicated vehicle travel scenarios to achieve day and night cruise protection. Black sesame intelligence has become the first chip enterprise in China to obtain the designated production point for the front loading and mass production of the special vehicle chassis project of a large mainframe factory.

　　The Allen Bradley PowerFlex 525 AC drive is widely used and can play an important role in conveyors, material handling, compressors, fans, and pumps, providing multiple motor control options to adapt to open loop and closed-loop applications. 　　Our company specializes in the American AB brand and has abundant inventory product resources. Some AB PowerFlex 525 series inventory product models include 25B-D013N114, 25B-D017N104, 25B-D024N104, 25B-D030N114, and 25B-D037N104. 　　PowerFlex 525 AC Drive at a glance 　　Ratings 　　100…120V: 　　200…240V: 　　380…480V: 　　525…600V:: 　　0.4…1.1 kW / 0.5…1.5 Hp / 2.5…6 A 　　0.4…15 kW / 0.5…20 Hp / 2.5…62.1 A 　　0.4…22 kW / 0.5…30 Hp / 1.4…43 A 　　0.4…22 kW / 0.5…30 Hp / 0.9…32 A   　　PowerFlex 525 AC drives feature an innovative, modular design oering fast and easy installation and con€guration. These cost-eective compact drives come with embedded EtherNet/IP™ communications, safety, USB con€guration and a highambient operating temperature capability. PowerFlex 525 AC drives also provide a variety of motor control algorithms including volts per hertz, sensorless vector control and closed loop velocity vector control, making these drives ideal for a vast array of applications.

What is a Inverter？  The Inverter is a power control device that uses frequency conversion technology and microelectronics technology to control AC motors by changing the frequency of the motor's working power supply. The Inverter mainly consists of rectifier (AC to DC), filter, inverter (DC to AC), braking unit, driving unit, detection unit, microprocessor unit, etc. The Inverter adjusts the voltage and frequency of the output power supply by breaking the internal IGBT, providing the required power voltage according to the actual needs of the motor, thereby achieving energy conservation and speed regulation. In addition, the Inverter also has many protection functions, such as overcurrent, overvoltage, overload protection, and so on. With the continuous improvement of industrial automation, Inverter have also been widely used.   A Inverter is a device that converts industrial frequency power sources (50Hz or 60Hz) into AC power sources of various frequencies to achieve variable speed operation of the motor. The control circuit controls the main circuit, the rectifier circuit converts AC power into DC power, the DC intermediate circuit smooths and filters the output of the rectifier circuit, and the inverter circuit converts DC power back into AC power. For inverters such as vector controlled inverters that require a lot of computation, sometimes a CPU for torque calculation and some corresponding circuits are also required. Variable frequency speed regulation is achieved by changing the frequency of power supply to the stator winding of the motor.     Our company has a large inventory, including different brands, such as Siemens Inverters, ABB Inverters, Yaskawa Inverters, Mitsubishi Inverters, Schneider Inverters, American AB Rockwell Inverter and German KEB Kobe Inverter.etc   Function of Inverter   There are various classification methods for Inverter, which can be divided into voltage type Inverter and current type Inverter according to the working mode of the main circuit; According to the classification of switch modes, it can be divided into PAM controlled Inverter, PWM controlled Inverter, and high carrier frequency PWM controlled Inverter; According to the working principle, it can be divided into V/f control Inverter, slip frequency control Inverter, vector control Inverter, etc; According to the classification of purposes, it can be divided into general Inverter, high-performance specialized Inverter, high-frequency Inverter, single-phase Inverter, and three-phase Inverter.   Troubleshooting of Inverter With the continuous improvement of industrial automation, they have been widely used. So what are the common faults of Inverter and how can they be resolved?   Problem 1: Communication failure between the motherboard and PLC Fault symptom: 1) The touch screen of the Inverter reports a communication fault between the motherboard and PLC, and the PPI cable receiving light RX light is off or not flashing. The power indicator lights on the motherboard are off. High voltage is still applied to the module input, and the module output is blocked. 2) The touch screen of the Inverter reports a communication fault between the motherboard and PLC, and the PPI cable transmission light TX light is off or not flashing. 3) The touch screen reports a communication fault between the motherboard and PLC, and the PPI cable power light POW is not on. Fault cause: 1) During the operation of the Inverter, due to a malfunction in the power supply switch PW1 of the motherboard or the DC power supply on the motherboard, the power supply of the entire motherboard is lost, and the IGBT switch signal stops. Therefore, a communication failure between the motherboard and PLC is reported; Module blocking output; At the same time, due to the power loss of the motherboard, the fault trip signal cannot be sent out, and high voltage is continuously applied to the module. 2) The motherboard cannot receive the communication signal sent by the PLC, and there is a problem with the communication part of the PLC itself.  Resolvent: 1) Install an active isolation transmitter between the DCS given signal and the motherboard signal acquisition circuit. 2) Change the functional parameter of Inverter 117 (given frequency threshold) from 0 to 30, without the need to install an isolation transmitter.     Problem 2: The Inverter does not respond when given a frequency The remote DCS provides a certain frequency, and the Inverter touch screen does not adjust the speed after receiving the frequency. Fault cause: When the PLC determines that the system is in the "remote control" mode, the main control can only receive remote 4-20ma signals for frequency adjustment. Therefore, the main reason for the DCS given frequency system not regulating speed is that 1) the control method (function number 207) accepted by the main control is incorrect; 2) The frequency setting mode (function number 208) in panel control mode is incorrect.  Resolvent: 1) Rotate the rotary button on the control cabinet door to set the function number 207 to 1, which is remote control mode. 2) Select the frequency setting mode under panel control mode, with function number 1, that is, analog input AI frequency setting.    Problem3: 'Please close the high voltage' issue Fault symptom: 1) The Inverter changed from a "system ready" state to a "please turn on high voltage" state, and the process change delay was only set to 60 seconds. After disconnecting the high voltage for 60 seconds, the "please turn on high voltage" was uploaded to the DCS, and the operator re turned on the high voltage, causing the fuse of 16 modules to burn out. 2) Due to the user's refusal to introduce the "please switch on high voltage" status into the DCS system, the Inverter was disconnected due to other equipment failures. The operator did not delay the high-voltage switch for 300s according to regulations before switching on the high voltage again. Instead, they urgently switched on the high-voltage switch of the Inverter, resulting in the fuse of 16 modules being burned out. Fault cause: Due to the high voltage power outage of the Inverter, the power inside the capacitor in the module cannot be immediately discharged, which requires a certain amount of time. At this time, the high voltage is reconnected, causing a short circuit and burning the fuse. Resolvent: 1) Set the time from the "System Ready" state to the "Please Close High Voltage" state to 300S. 2) On site installation and debugging must connect the "Please Close High Voltage" signal to the user's DCS system, and ensure that the thermal engineering performs interlocking protection in the closing circuit.   Problem 4: System output overcurrent and overload Fault symptom: 1) During the normal operation of the Inverter, the system output overcurrent or output overload fault causes the Inverter to shut down due to a serious fault. 2) The Inverter shuts down due to system output overload or system overcurrent fault during the acceleration process. 3) The Inverter reported overcurrent during startup.  Fault cause: 1) The possible reasons for the sudden output overload or overcurrent of the Inverter during normal operation may be due to fluctuations in bus voltage, sudden increase in load startup, or a fault in the frequency conversion output current sampling circuit that causes excessive frequency conversion current collection. 2) Current sensor failure or motherboard signal acquisition circuit failure, resulting in incorrect operation of the Inverter. 3) The Invertern outputs overload or overcurrent during the acceleration process mainly because the acceleration time is too fast. 4) Due to the load during the start-up process of the Inverter (mainly due to the reverse action of the fan on the opposite side) being in a drooping state or the motor load being stuck. Resolvent: 1) During the normal process, the sudden overload and overcurrent of the Inverter are mainly caused by confirming the cause of the trip. If it is caused by changes in the power grid or sudden load changes, the Inverter should be restarted. If it is caused by a fault in the Inverter acquisition circuit itself, the corresponding wiring and Hall sensor should be checked. 2) During the speed up process of the Inverter, if the system output is overloaded or the system overcurrent causes a malfunction and shuts down, the corresponding up and down speed up times should be modified, and the time should be set as large as possible. 3) Ensure that the fan load is at a standstill during startup; Modify the DCS startup logic of the fan, close all inlet and outlet dampers before starting the motor, and then open them after starting to avoid current impact; Start the power frequency first and then start the Inverter; Set the torque increase in the function number to increase the starting torque of the Inverter.    Problem 5: Module DC overvoltage Fault symptom: 1) During the shutdown and speed reduction process of the Inverter, multiple module DC overvoltage faults occurred, causing the user's high-voltage switch to trip. 2) The user's bus voltage is too high. The actual bus voltage of the 6KV power supply is above 6.3KV, and the actual bus voltage of the 10KV power supply is above 10.3KV. When the bus voltage is applied to the Inverter, the module input voltage is too high, and the module reports DC bus overvoltage. 3) During the startup process of the Inverter, approximately until it reaches 4HZ, the DC bus of the Inverter is overvoltage. Fault cause: 1) During the shutdown process of the Inverter, the speed reduction time is too fast, causing the motor to be in the generator state. The motor feeds back energy to the DC bus of the module, generating a pump up voltage, which leads to a high voltage on the DC bus. 2) Due to the factory standard wiring of on-site transformers being 10KV and 6KV, if the bus voltage exceeds 10.3KV or 6.3KV, it will cause the output voltage of the transformer to be too high, resulting in an increase in the bus voltage of the module and causing overvoltage. 3) Different phase modules at the same position have fiber optic connections reversed (such as A4 and B4 fiber optic connections reversed), resulting in overvoltage in their phase voltage output. Resolvent: 1) Extend the up/down time and down time appropriately. 2) Raise the overvoltage protection point inside the module to 1150V. 3) Change the short-circuit terminal of the transformer to 10.5KV (6.3KV) when the user voltage reaches 10.3KV (6KV) or above. 4) Check if the optical fiber is inserted incorrectly and correct the incorrect fiber.   Problem 6: Module communication failure Fault symptom: During the operation of the Inverter, there is a serious fault that trips and shuts down, and the touch screen reports a module communication fault.  Fault cause: 1) The input fuse, rectifier bridge, and charging resistor of the module are burnt out, causing the module control to lose power and communication to be unable to proceed. 2) The optical communication sub board on the motherboard is faulty or protected by the protection diode of the communication circuit power supply. 3) The connecting optical fiber is inserted in the wrong position or the optical fiber is broken or damaged. 4) The output voltage of the power board in the module is abnormal or there is no output, causing communication interruption in the module.  Resolvent: 1) Open the module cover and replace any damaged components such as fuses and charging resistors in the module. 2) Replace the damaged optical circuit board or protective diode. 3) The optical fiber is connected normally according to the markings, and if the optical fiber is damaged, it should be replaced. 4) Replace the module power board. Our company is a global supplier of new and used surplus products. It has grown to become one of the largest wholesale suppliers of industrial and automation products, serving customers worldwide 24 hours a day. We offer hundreds of thousands of parts and strive to source and supply your parts at a fraction of the retail cost.

Motion control card: based on PC interface, because of the powerful function of PC, the motion controller composed with PC has the strongest function, but its working stability and reliability are poor. The motion control card is inserted into the PC host through a PCI slot; Develop using advanced programming languages such as C++, C #, VB, * * *. NET, and labview; Use the control card API interface functions provided by the motion control card manufacturer in programming to achieve the use of control card resources; The motion control card controls the servo motor or stepper motor by sending pulses to the servo or stepper driver, and controls the IO of relays, sensors, cylinders, etc. by reading input signals and controlling output signals; The main advantage of motion control cards lies in utilizing the powerful functions of PCs, such as CAD, machine vision, and advanced software programming; Utilizing the functions of FPGA+DSP/ARM+DSP chips to achieve high-precision motion control (multi axis linear and arc interpolation, motion following, PWM control, etc.). The Motion control card has the following distinctive features: (1) The hardware composition is simple. Insert the motion controller into the PC bus and connect the signal line to form the system; (2) Can use the rich software already available on a PC for development; (3) The code of motion control software has good universality and portability; (4) There are many engineering personnel available for development work, and there is no need for too much training work to proceed with development.   PLC: Its main function is to perform logical control of switching values, and it has simple motion control (linear trajectory control), calculation, data processing, and other functions. Usually, a touch screen is used as the human-machine interface. It has the advantages of reliable operation and simple programming, but its motion control function is relatively simple. The application process of PLC mainly relies on PLC+HMI, which greatly limits the visualization interface. The biggest problem in practical application is that the mapping function cannot be achieved; Nowadays, due to the rapid development and application of machine vision, the integration of PLC and machine vision is very difficult; At present, some manufacturers provide PLC with a machine vision solution, where an independent PC processes the visual part and sends the processing results to the PLC, which then applies the received data for operation. This approach increases development costs, and a control system requires two sets of software to execute.  PLC has the following distinct characteristics: 1. Easy to use and simple programming 2. Strong functionality and high cost performance ratio 3. Complete hardware support, convenient for users to use, and strong adaptability 4. High reliability and strong anti-interference ability 5. Low workload in system design, installation, and debugging 6. Small maintenance workload and convenient maintenance   Difference between motion controller and PLC: 1. Motion control card: A motion control card is a circuit board that controls the movement of motors, such as stepper motors and servo motors. It can be used to control the speed, position and acceleration of the motor. 2. PLC: A programmable logic controller (PLC) is an industrial digital computer which has been designed for the specific purpose of controlling machines and processes. It uses a programmable memory to store instructions and execute specific functions such as logic, sequencing, timing, counting and arithmetic operations to control machines and processes. To distinguish between motion control cards and PLCs, it is important to consider their main differences in terms of functionality, cost, size and complexity. Motion control cards are typically more cost-effective than PLCs due to their smaller size and simpler design. They are also easier to use since they require less programming knowledge than PLCs. However, they are limited in terms of features compared to PLCs as they cannot perform complex tasks such as data logging or communication with other devices. PLC are more expensive than motion control cards but offer more features due to their larger size and more complex design. They can be programmed for complex tasks such as data logging or communication with other devices. They also require more programming knowledge than motion control cards but offer greater flexibility in terms of programming options. When selecting between a motion control card or a PLC for a particular application, it is important to consider the cost, size, complexity and features required for the task at hand before making a decision. Here are several PLC products from our company: 1.Allen-Bradly:1769-OF8V, 1769-L33ER, 1769-L18ERM, 1766-L32BXB, 1757-SRM, 1756-ENBT 2.OMRON：CVM1-PA208, C500-OC224, C500-ID218, CV500-RT211 3.B&R ：2CP104.60-1, 2CP200.60-1, 2DO428.6, 2DI426.6, 2PS740.9,2AT300.6,,2DS100.60-1 4.SIEMENS：6ES7223-1PL22-0XA8, 6ES7214-2BD23-0XB8, 6ES7221-1BH22-0XA8,  6ES7231-0HC22-0XA8, 6ES7232-0HB22-0X  

A servo motor is a type of electric motor used in precise motion control systems that require high accuracy and positioning. It uses a feedback control system to monitor and adjust its position and speed, allowing it to move precisely to specific angles or distances. Servo motors are commonly used in robotics, CNC machines, and automation systems. They can provide high torque and speed while maintaining high accuracy and reliability. The servo motor can control speed with very accurate position accuracy, and can convert voltage signals into torque and speed to drive the control object. The rotor speed of the servo motor is controlled by input signals and can react quickly. In automatic control systems, it is used as an executing element and has characteristics such as small electromechanical time constant and high linearity. It can convert the received electrical signal into angular displacement or angular velocity output on the motor shaft. It is divided into two categories: DC and AC servo motors, and its main feature is that there is no self rotation phenomenon when the signal voltage is zero, and the speed decreases uniformly with the increase of torque. Our company sells various brands of servo motors, such as 1.Allen-Bradley: 1326AB-B740C-S2L, 2004-RZ02BA1AN3, H-4050-P-H00AA, HPK-B1307C-MB44AA, MPL-A420P-SJ72AA, MPL-A430H-HJ24AA, MPL-B420P-MJ22AA, MPL-B430P-MJ24AA, RSMZ-04BH6ANK3, RSMZ-08BH6ABK3, TL-A2530P-HJ32AN 2.ABB: 3HAC17327-1/01、LC440TGR0002, PS-130/6-50-2P-PMB-4056, PS-130/6-60-P-LSS-4057, PS-90/6-57-P-LSS-4280,               PS-90/6-79-P-PMB-3773, SDM251-000N5-055/40-2000, SDM251-000N5-055/60-2000, T4F2BR0511 3.SIEMENS: 1FK6042-6AF71-1TA0, 1FK7063-5AF71-1KH5,A5E03326159, 6SN2132-1CU11-1BA0,6SL3000-0CE15-0AA0, 6SL3562-6DF71-0RG1,1FK6042-6AF71-1TH2-Z,1FK6060-6AF71-1TA0,1FK6063-6AF71-1TG0 4.CT/Emerson: 107U2B200VBFCA13014X, 75DSA600C, 95DSC600C, R142DSC450C, XVM-402-TONS-D001,                             95EZA300CACAA-UL,142U2D150CACAB165240 5.SANYO: 103-546-0241, P20B13500HXSH6E, P50B07040DXSG2, R2AA08040FCHCW, V404T-012,                    V506BT-412, 103H8222-5111,R2AA08075FXPF6,P50B04010DCL9W 6.Lenze: CFM71M/BR/HR/TF/RH1L/SB50, MDSKABS080-22, MDSKSBS056-33, SSN40-1GVAR-063C22,MDSKSRS036-13   So, how is the servo motor debugged before use? 1. Initialization parameters    Before wiring, initialize the parameters first.   On the control card: select the control method; Clear the PID parameters to zero; When the control card is powered on, the default enable signal is turned off; Save this state to ensure that the control card is in this state when powered on again.   On the servo motor: set the control mode; Set to enable external control; The gear ratio output by the encoder signal; Set the proportional relationship between the control signal and the motor speed. It is recommended to set the maximum design speed during servo       2. Wiring   Power off the control card and connect the signal wire between the control card and the servo. The following lines must be connected: the analog output line of the control card, the enable signal line, and the encoder signal line of the servo output. After reviewing the wiring without any errors, power on the servo motor and control card (as well as PC). At this point, the motor should not move and can easily rotate with external force. If this is not the case, check the setting and wiring of the enable signal. Rotate the motor with external force and check if the control card can correctly detect changes in motor position. Otherwise, check the wiring and settings of the encoder signal.      3. Test direction   For a closed-loop control system, if the direction of the feedback signal is not correct, the consequences will definitely be catastrophic. Turn on the enable signal of the servo through the control card. This is when the servo should rotate at a lower speed, which is known as "zero drift" in legend.   Generally, there are instructions or parameters on the control card to suppress zero drift. Use this command or parameter to see if the speed and direction of the motor can be controlled through this command (parameter).   If it cannot be controlled, check the parameter settings of the analog wiring and control method. Confirm that a positive number is given, the motor rotates forward, and the encoder count increases; Given a negative number, the motor rotates in reverse and the encoder count decreases.   If the motor carries a load and has limited travel, do not use this method. Do not apply excessive voltage during testing, it is recommended to keep it below 1V. If the directions are inconsistent, the parameters on the control card or motor can be modified to make them consistent.      4. Suppress zero drift   In the closed-loop control process, the presence of zero drift will have a certain impact on the control effect, and it is best to suppress it. Use the control card or servo to suppress zero drift parameters and carefully adjust them to make the motor speed approach zero. Due to the randomness of zero drift itself, it is not necessary to require the motor speed to be absolutely zero.      5. Establish closed-loop control   Once again, release the servo enable signal through the control card and input a small proportional gain on the control card. As for how large it is, it can only be considered small based on feelings. If you are really not confident, enter the minimum value allowed by the control card. Turn on the enable signal of the control card and servo. At this point, the motor should be able to roughly follow the motion instructions.      6. Adjusting closed-loop parameters   Fine tuning of control parameters to ensure that the motor moves according to the instructions of the control card is a necessary task, and this part of the work is more about experience, which depends on daily accumulation.