What is the PLC? PLC (Programmable Logic Controller) is a widely used programmable controller in the industrial field. The application of PLC technology can achieve digital, networked, and automated control of various production equipment, improving production efficiency and work quality. With the continuous improvement of industrial automation level, the application range of PLC is also expanding.   Basic structure A PLC is essentially a computer dedicated to industrial control, with a hardware structure similar to that of a microcomputer, consisting of a CPU, I/O board, display panel, memory, and power supply.  1. Power supply The power supply of PLCs plays a very important role in the entire system. Without a good and reliable power supply system, it cannot work properly. Therefore, manufacturers of PLCs also attach great importance to the design and manufacturing of power supplies. Generally, the fluctuation of AC voltage is within the range of+10% (+15%), and the PLC can be directly connected to the AC power grid without taking other measures  2. Central Processing Unit (CPU) The central processing unit (CPU) is the control center of a PLC. It receives and stores user programs and data input from the programmer according to the functions assigned by the PLC system program; Check the status of power supply, memory, I/O and alert timer, and diagnose syntax error in user program. When the PLC is put into operation, it first receives the status and data of various input devices on site through scanning, and stores them in the I/O image area respectively. Then, it reads user programs one by one from the user program memory, interprets commands, and executes logical or arithmetic operations according to the instructions. The results are sent to the I/O image area or data register. After all user programs have been executed, the output states or data in the output registers of the I/O image area are finally transmitted to the corresponding output devices, and the cycle continues until it stops running. In order to further improve the reliability of PLCs, redundant systems with dual CPUs or voting systems with three CPUs are also used for large programmable logic controllers. In this way, even if a CPU fails, the entire system can still operate normally.  3. Memory The memory that stores system software is called system program memory. The storage for storing application software is called user program storage. 4. Input output interface circuit 1) The on-site input interface circuit consists of an optical coupling circuit and an input interface circuit of a microcomputer, serving as the input channel for the interface between the PLC and the on-site control. 2) The on-site output interface circuit is integrated with output data registers, gate circuits, and interrupt request circuits, and functions as a PLC to output corresponding control signals to the on-site execution components through the on-site output interface circuit.  5. Functional modules Functional modules such as counting and positioning. 6. Communication module       Our company Rockss Automation Technology Co. Ltd. has been a leading provider of automation solutions for several years, and with our extensive inventory, we can fulfill all your automation needs. Our PLCs are of the highest quality and trusted by businesses of all sizes worldwide.      We have a wide range of PLCs available, and each of them is designed to meet specific needs. Our PLCs are developed to maximize efficiency and cut costs while providing reliable and accurate automation solutions. They are also manufactured using the latest technology and the highest quality materials, ensuring excellent performance and longevity.     Functional characteristics PLCs have the following distinct characteristics.   1. Easy to use and simple programming Adopting concise programming languages such as ladder diagrams, logic diagrams, or statement tables without the need for computer knowledge, the system development cycle is short and on-site debugging is easy. In addition, the program can be modified online to change the control scheme without dismantling the hardware.   2. Strong functionality and high cost performance ratio A small PLC has hundreds or thousands of programming components available for users to use, which have strong functions and can achieve very complex control functions. Compared with relay systems with the same function, it has a high cost performance ratio. PLC can achieve decentralized control and centralized management through communication networking.   3. Complete hardware support, convenient for users to use, and strong adaptability PLC products have been standardized, serialized, and modularized, equipped with a variety of hardware devices for users to choose from. Users can flexibly and conveniently configure the system to form systems of different functions and scales. The installation and wiring of PLC is also very convenient, usually connected to external wiring through terminal blocks. PLC has strong load capacity and can directly drive general solenoid valves and small AC contactors. After the hardware configuration is determined, the user program can be modified to quickly and conveniently adapt to changes in process conditions.   4. High reliability and strong anti-interference ability Traditional relay control systems use a large number of intermediate relays and time relays, which are prone to malfunctions due to poor contact of the contacts. PLC replaces a large number of intermediate relays and time relays with software, leaving only a small number of hardware components related to input and output. The wiring can be reduced to 1/10-1/100 of the relay control system, greatly reducing faults caused by poor contact of contacts. PLC adopts a series of hardware and software anti-interference measures, with strong anti-interference ability, with an average time between failures of tens of thousands of hours or more. It can be directly used in industrial production sites with strong interference. PLC has been recognized by users as one of the most reliable industrial control equipment.   5. Low workload in system design, installation, and debugging PLC replaces a large number of intermediate relays, time relays, counters and other devices in the relay control system with software functions, greatly reducing the workload of control cabinet design, installation, and wiring. The ladder diagram program of PLC is generally designed using sequential control design method. This programming method is very regular and easy to master. For complex control systems, designing a ladder diagram takes much less time than designing a circuit diagram for a relay system with the same function. The user program of PLC can be simulated and debugged in the laboratory, with input signals simulated using small switches. The status of the output signal can be observed through the LED on the PLC. After completing the installation and wiring of the system, problems discovered during the on-site debugging process can generally be solved by modifying the program, and the debugging time of the system is much shorter than that of the relay system.   6. Small maintenance workload and convenient maintenance The fault rate of PLC is very low, and it has complete self diagnosis and display functions. When a malfunction occurs in the PLC or external input devices and actuators, the cause of the malfunction can be quickly identified based on the information provided by the LED or programmer on the PLC. Replacing the module can quickly eliminate the problem.       At Rockss Automation Technology Co. Ltd., we are committed to providing our clients with nothing but the best. That's why we have a range of brands to choose from, including Siemens, Allen-Bradley,SIEMENS , and more. With our vast inventory, we can supply PLCs for industries such as automotive, pharmaceuticals, food and beverage, and more.    Below is an introduction to several brands of PLC sold by our company: 1.Allen-Bradley PLC 2.B&R PLC 3.SIEMENS PLC   4.ABB PLC 5.Schneider PLC    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 PLCs.    When you purchase PLCs from us, you can rest assured you are getting the best value for your money. With our competitive pricing, exceptional quality, and unparalleled service, we want to ensure our customers have nothing but the best experience when they partner with us.    In conclusion, Rockss Automation Technology Co. Ltd. is the perfect partner for all your automation needs. Whether you need PLCs 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.

   The scientific PLC programming steps are actually very simple, but often most engineers consider them simple and overlook many details. Neglecting details will inevitably lead to problems in the future. To avoid future problems, only by following the rules well can we avoid them. Nothing can be accomplished without norms or standards, and PLC programming also has its own rules.  The following nine steps are for reference.   Step 1: Read the product manual The first step may seem simple enough, but many engineers cannot do it. Believing that this step is a waste of time, even relying solely on supplier training to understand the equipment. Carefully reading the instruction manual is the first step in programming. The first step is to read the safety regulations, know which executing mechanisms may cause personal injury, which mechanisms are most prone to collisions, and how to solve the most fatal problems when danger occurs. These are all in the safety regulations, why not look? In addition, the characteristics, usage, and debugging methods of each component of the equipment are also included in the manual. Even if the program is correct, if the components are not properly debugged, the equipment will still not work. Furthermore, all circuit diagrams, pneumatic hydraulic circuit diagrams, and assembly drawings are also included in the manual. Without reading them, how can one know what modifications can be made to each component.   Step 2: Check the I/O according to the manual Check I/O, commonly known as "management". There are many ways to check I/O, but it is necessary to check them in order according to the addresses provided in the manual, and in an absolutely safe situation. When checking input points, the general input signals are various sensors, such as capacitors, inductors, optoelectronic, piezoresistive, ultrasonic, magnetic induction, and travel switches. Checking these components is relatively simple. According to the component instructions, place the workpiece on the workstation or move the actuator to check if there is a signal from the sensor. Of course, the detection methods for different devices may vary depending on the specific situation. But be extra careful when checking the output signal. If it is an electric drive product, it is necessary to power on the actuator drive under safe conditions, especially to ensure that the equipment does not collide, and check whether the actuator can move. If it is a hydraulic or pneumatic actuator, manually power on the directional valve under safe conditions to control the actuator. When checking the output signal, regardless of the driving mode of the actuator, it is necessary to follow the component manual to ensure the safety of the equipment and personnel. It should be noted that not all actuators of the equipment can be powered on for testing, so sometimes individual output signals may not be able to be manually tested. Whether it is an input or output device, when the sensor has a signal or the driving device of the actuator is powered on, it is necessary to simultaneously check whether the I/O module indicator light on the PLC is also on. In many devices, the input and output signals are connected to the PLC through wiring terminals. Sometimes, the indicator light of the wiring terminal has a signal, but it cannot be guaranteed that due to an internal open circuit in the connecting wire, there is no signal connected to the corresponding address on the PLC. This requires special attention. After measuring the input and output signals, the measured address should be recorded simultaneously to ensure that the signal address is consistent with the instructions. If there are differences, measure the equipment address again. If the measurement is still inconsistent multiple times, contact the equipment manufacturer first because at this time, it cannot be guaranteed that the address provided by the manufacturer is correct.   Step 3: Open the programming software, configure the hardware, and write the I/O address in the symbol table Different PLCs use different programming software. However, for any software, the first step before programming is to configure the hardware and establish the corresponding communication configuration based on the actual PLC type. After the hardware configuration is completed, write the I/O addresses previously recorded on paper in the software's symbol table. Due to different software, the definition of symbol tables may vary, but general software has this function, and this step is crucial. When writing a symbol table, it is not only important to write the absolute addresses of device input and output correctly, but also to name and add comments to each address, which will be very convenient for future programming. You don't need to query the absolute address every time during programming, just fill in the named name. Of course,it also depends on whether the software has this feature.   Step 4: Write a program flowchart Before programming, it is important to write a flowchart of the program on a draft. A complete program should include the main program, stop program, emergency stop program, reset program, and other parts. If the software allows, each program should be written in the form of "blocks", that is, a program is a block, and ultimately each block can be called as needed. PLC is best at handling sequential control, where the main process is the core. It is important to ensure that the established process is correct and carefully check it on the draft. If there are problems with the main program, it is very likely that the program will collide, damage the equipment, or pose a danger to personnel after being executed by the PLC.   Step 5: Write a program in the software Once there are no issues with the main process, you can write the program in the software. In addition, it is important to pay attention to the correctness of the stop, emergency stop, and reset procedures, especially the stop and emergency stop procedures, which are the most important procedures related to personal safety and equipment safety and cannot be underestimated. It is important to ensure that under any circumstances, as long as the stop or emergency stop program is executed, the equipment will never cause harm to personnel.   Step 6: Debugging the program In the step of debugging the program, it can be divided into two aspects. 1. If conditions permit, or if your logical ability is strong, you can first use the simulation function of the software to test, but many cumbersome programs are difficult to use software simulation to see if the program is correct. 2.Download the program to the PLC for online debugging. If the device does not move or there are abnormal situations during operation, do not modify the program first. It is likely that the sensor has not been debugged properly. If the sensor is correct, then modify the program.   Step 7: After debugging is completed, edit the program again In the previous debugging step, due to modifications made to the program, it was necessary to check or edit the entire program again, and then download the final program to the PLC.   Step 8: Save the program In this step, one question to note is where should the program be saved? PC hard drive? Flash device? mobile hard disk drive? Of course, none of these are possible. All these storage devices may be infected with viruses. So, it is necessary and only possible to burn the program onto a CD. And there is another question, which program is the firing program? Previously, we have downloaded the final debugging and modification program to the PLC. If the PLC is completely correct when executing the program, we will upload the program to the PC and burn it onto a CD. Everything above is for safety.   Step 9: Fill out the report After completing the programming, the final debugging report should be filled out, and the problems encountered and some difficult issues in the program should be recorded one by one. Because after a long time, I will also forget some techniques of the program, and it will also facilitate other colleagues to understand the program you have written.     Our company Rockss Automation have a variety of inventory and different brands of products to choose from. Our vast inventory includes products from various well-known brands, all of which are easily accessible and easy to search for. Whether you're looking for machinery, equipment, or tools, our company has got you covered.     Choose from our extensive range of high-quality, reliable products, and experience the convenience of having everything you need in one place. From sourcing to delivery, our expert team will be with you every step of the way, ensuring a smooth and hassle-free experience.

          The use of Inverters in modern industry has become very common. Although the use of Inverter is becoming safer, more efficient, and more energy-efficient, it is also inevitable that Inverter will malfunction during operation. When the Inverter malfunctions, the corresponding fault code usually appears. So what are the faults that occur in the Inverters when these fault codes appear? How should we handle it? The following nineteen common fault codes and their handling methods are for reference only. 1. Inverter overcurrent fault ※ Fault code: OCF (1) Fault name: Inverter overcurrent fault (2) The cause of the malfunction: incorrect input of data on the motor nameplate: the load being dragged by the motor is too heavy: mechanical jamming. The motor is locked. (3) Method to solve the problem: Check whether the motor nameplate data in the Set and Motor Control menus is correctly entered; Whether the overcurrent protection threshold is appropriate: check the selection of Inverter and whether it is suitable for the motor and load, and check whether the motor is blocked; Check if the machine is stuck. 2. Motor short circuit fault ※ Fault code: SCF (1) Fault name: The Inverter can display SCF1 motor short circuit based on the degree of short circuit; SCF2 has impedance short circuit; SCF3 is short circuited to ground. (2) Reason for failure: SCF1: When a short circuit occurs between the output phases of the Inverter or between the output and ground, hardware is used to detect the fault and respond quickly (several microseconds). The current threshold that triggers the fault is between 3-4 times the rated current of the Inverter. (3) SCF2: Due to impedance short circuit between the output phases or the output phase to ground of the Inverter, software is used to detect this fault for a few milliseconds. Possible reasons for the grounding of the Inverter output include: short circuit of the motor itself; Long motor cables, if multiple motors are connected in parallel and the cable length between the motor and the Inverter exceeds 80 meters, without using a motor reactor or a sine wave filter on the output side of the Inverter to reduce ground leakage current. (4) The cause of the fault: insulation problem of the cable from the motor or Inverter to the motor; Current transformer fault; Power board including | GBT power part failure; Control board malfunction. SCF3: When the motor starts or runs, it detects a short circuit between the output of the Inverter and the ground, and the Inverter detects a large leakage current between the output and the ground. (5) Solution to the fault: Check the cable insulation between the Inverter and the motor; Check the insulation of the motor; If the cable between the motor and the Inverter is too long, a motor reactor or a sine wave filter on the output side of the Inverter should be used to reduce ground leakage current; Reduce the switching frequency of the Inverter and check if the GBT power section is normal. 3. Braking overspeed fault ※ Fault code: OBF (1) Fault name: Braking overspeed. (2) The cause of the fault: Due to excessive braking or large load inertia, the internal DC bus voltage of the Inverter suddenly increases. (3) The method to solve the problem is to increase the deceleration time of the Inverter as much as possible; The deceleration time adaptation (brA) function can be activated without using a braking resistor; If necessary, additional braking resistors should be added and the resistance and power of the braking resistor should be correctly calculated according to actual requirements. 4. Inverter overheat fault ※ Fault code: OHF (1) Fault Name: Inverter Overheating Fault (2) Reason for malfunction: Check the motor load; Check if the cooling fan of the Inverter is malfunctioning. The reason is that the temperature of the power part of the Inverter is too high due to the heavy load of the motor or poor heat dissipation of the Inverter. (3) Method to solve the problem: Check if the ventilation of the Inverter is good and if there is any dirt blocking. Check if the ambient temperature of the Inverter is too high. Take appropriate measures to reduce the ambient temperature to ensure the cleanliness of the operating environment of the Inverter. When the Inverter overheats, wait for the temperature of the Inverter to drop before starting the Inverter. 5. Motor overload fault ※ Fault code: OLF (1) Fault name: Motor overload fault. (2) The cause of the fault: Due to excessive current in the motor, the thermal protection of the motor inside the Inverter was triggered. (3) Solution to the fault: Check the load condition of the motor; Check the motor thermal protection parameter settings of the Inverter; Wait for the motor to cool down before starting it.   If you are looking for a reliable and efficient variable frequency drive, come to Rockss Automation to take a look and perhaps find a satisfactory product.   6. Motor phase failure ※ Fault code: OPF (1) Fault name: Motor phase loss fault. (2) Reason for the malfunction: The Inverter is not connected to the motor; The motor power does not match the Inverter power, and the motor is too small; The motor runs at no load, and the running current of the motor is unstable and discontinuous, resulting in the Inverter not being able to detect the motor current. (3) Solution to the fault: Check the connection between the Inverter and the motor; If conducting small motor testing, the motor phase loss protection function of the Inverter should be turned off, and the output phase loss setting (○ PL)=not set (nO); Check if the motor rated voltage (UnS), motor rated current (ncr), and IR stator voltage drop compensation (UF) parameters are set correctly, and perform self tuning (tUn) operation. 7. Input overvoltage fault ※ Fault code: OSF. (1) Fault name: Inverter input overvoltage fault. (2) The cause of the fault: The input main power supply voltage of the Inverter is too high, and the instantaneous fluctuation of the main power supply voltage is too large. (3) Solution to the fault: Check the main power supply voltage, and the voltage fluctuation range should not exceed the allowable range of the Inverter. 8.Communication failure of Inverter  ※ Fault code: SLF. (1) Fault name: Communication failure of Inverter. (2) The cause of the malfunction is a communication interruption on the Inverter communication bus. (3) Solution to the problem: Check if the communication connection is normal; Check communication timeout settings; Check the communication program. 9. Inverter undervoltage fault ※ Fault code: USF. (1) Fault name: Inverter undervoltage fault. (2) Reason for malfunction: The input main power supply voltage of the Inverter is too low. The instantaneous fluctuation of the main power supply voltage is too large. (3) Solution to the fault: Check the main power supply voltage, and the voltage fluctuation range should not exceed the allowable range of the Inverter; Check if the Under Voltage Management (USb) parameter settings are appropriate. 10. Inverter input phase failure ※ Fault code: PHF (1) Fault name: Inverter input phase loss fault. (2) The cause of the fault: the inverter power supply is out of phase or incorrect; The Inverter is powered by a DC bus (3) Solution to the fault: Check the power supply connection of the Inverter; Check the power supply voltage and phase sequence of the Inverter; Check if the incoming fuse is blown; If the Inverter uses DC bus power supply, input phase loss (IPL)=N ○ should be set to shield the input phase loss protection. 11. Short circuit fault of Inverter braking unit ※ Fault code: BUF (1) Fault name: Short circuit fault of braking unit. (2) The cause of the fault: the braking resistor of the Inverter is burnt out, causing a short circuit in the braking unit; Short circuit of braking unit output; The brake unit is not connected to certain models of Inverter. 12. Fault in the pre charging circuit of the Inverter ※ Fault code: CrF (1) Fault name: Inverter pre charging circuit fault. (2) The cause of the fault: The relay or pre charging resistor in the internal charging circuit of the Inverter is damaged. (3) The method to solve the problem: The Inverter should be powered off first and then powered on later. If the problem cannot be eliminated, the Inverter must be repaired. 13. Motor overspeed fault ※ Fault code: SOF (1) Fault name: Motor overspeed fault (2) The cause of the malfunction is unstable operation of the motor; The inertia of the load dragged by the electric motor is too large. (3) Method to solve the problem: Check the parameter settings related to the motor nameplate data, inverter gain, and stability in the Inverter parameters; If necessary, the braking resistance can be increased. 14. Motor self-tuning fault ※ Fault code: TNF (1) Fault name: Motor self tuning fault. (2) The cause of the malfunction: Due to the use of a special motor or the power of the motor not matching the Inverter, or the motor not being connected properly, the Inverter failed to complete its self tuning during the motor self tuning. (3) Solution to the fault: Check the connection between the Inverter and the motor; Check and confirm that the Inverter and motor are compatible with each other. 15. Speed feedback loss fault ※ Fault code: SPF (1) Fault name: Speed feedback loss fault. (2) Reason for the malfunction: During the operation of the Inverter, the encoder feedback signal was lost. (3) Solution to the fault: Check the connection between the Inverter and the encoder; Check the encoder. 16. Encoder malfunction ※ Fault code: EnF (1) Fault name: Encoder fault. (2) The cause of the malfunction: The encoder has malfunctioned. (3) Solution to the fault: Check the parameter settings of the number of pulses (PG |) and encoder type (EnS) related to the encoder in the Inverter; Check the mechanical and electrical connections of the encoder. 17. The Chinese panel of the Inverter cannot be connected or the screen is black (1) The cause of the fault: there is a fault in the Chinese panel of the Inverter, the internal power supply of the Inverter is faulty, and the Chinese panel of the Inverter is not connected properly. (2) Method to solve the problem: Check the connection between the panel and the Inverter, and check the 24 V power supply of the Inverter; Replace the Chinese panel. 18. Inverter display nLP ※ Display code: nLP (1) Code name: The Inverter has no main power supply. (2) The cause of the malfunction: The Inverter only has control power supply, and the main power supply is not supplied or the fuse on the input side of the Inverter is blown. (3) Solution to the fault: Check the incoming power supply of the Inverter; Check the fuse, the power of the Inverter is relatively low, check the connection of the short connectors of PO and PA+, and whether the bolts are tightened. If DC reactance is used, ensure that the DC reactance is connected to PO and PA+. 19. Inverter display PrA ※ Display code: PrA. (1) Code name: The power off function of the Inverter is effective, and the Inverter is locked. (2) The reason for the malfunction: Some Inverter have added safety application functions, and the PWR control terminal of the Inverter is not powered on. (3) Solution to the fault: Check the PWR control terminal of the Inverter. The variable frequency drives provided by Rockss Automation are designed with ease of use in mind and can be highly customized and adjusted to meet your specific needs. It is also equipped with advanced safety features to protect personnel and equipment. Whether you are in the manufacturing industry, HVAC industry, or any other industry that requires high-quality motor control, I believe Rockss Automation can provide the best solution. Please contact us immediately for the following order.

   What are the Semiconductors that have been boiling up in recent days? Let's take a look together next.   All objects in life can be roughly divided into three categories based on their conductivity: Conductors, Semiconductors, and Insulators.   The outermost electrons of a conductor easily break free from the atomic nucleus and become free electrons. Under the action of an external electric field, they move in a directional direction, forming an electric current. Their conductivity is very good, and they are called conductors. High valence elements (such as inert gases) or polymer materials (such as rubber), whose outermost electrons are strongly bound by atomic nuclei and difficult to form free electrons, have extremely poor conductivity and are called insulators.   ASML 4022.470.51162 Laser Sensor At Rockss Automation, we sell semiconductor accessories and welcome your purchase.    The commonly used semiconductor materials, silicon (Si) and germanium (Ge), are both tetravalent elements, and their outermost electrons are neither as easy to break free from the atomic nucleus as conductors, nor as tightly bound by the atomic nucleus as insulators. At room temperature, their conductivity is between the two.   In the semiconductor with crystal structure, when specific impurity elements are artificially doped, the conductivity is controllable. Moreover, under the conditions of light and thermal radiation, its conductivity still has obvious changes. These special properties determine that the semiconductor can be made into various electronic devices.    AMAT 0150-00743 Probe      Overall, Semiconductor is a material product typically composed of silicon, with higher conductivity than insulators such as glass, but lower conductivity than pure conductors such as copper or aluminum. Impurities (known as doping) can be introduced to alter their conductivity and other properties to meet the specific needs of the electronic components they reside in. Semiconductors, also known as semiconductors or chips, can be found in thousands of products, such as computers, smartphones, devices, gaming hardware, and medical devices.      Introducing Rockss Automation – your one-stop shop for all your semiconductor component needs.From microprocessors to memory modules, we have it all. Our team of experienced technicians ensure that each component is of the highest quality, meeting all industry standards. You can rest assured that each product you purchase from us has undergone rigorous testing to ensure its reliability and durability.      

Semiconductors can be divided into first, second, and third generation semiconductors based on different substrate materials. The first generation semiconductors use silicon (Si) and germanium (Ge) as substrate materials and are most widely used. The second generation semiconductors use gallium arsenide (GaAs) as substrate materials, while the third generation semiconductors use gallium nitride (GaN) and silicon carbide (SiC) as substrate materials. According to specifications, semiconductors can be divided into military grade, automotive grade, industrial grade, and civilian grade, which have different temperature adaptability and anti-interference capabilities. In addition, the World Organization for Semiconductor Trade Statistics (WSTS) categorizes all semiconductors into four major categories based on their structure and function: integrated circuits, discrete devices, optoelectronic devices, and sensors.   LAM 27-326390-00 Manual Operator   First generation semiconductor The first generation of semiconductors mainly referred to Si and Ge. In the 1850s, Ge dominated the semiconductor market, mainly used in low-frequency, low voltage, medium power transistors and photodetectors. However, Ge semiconductor devices were not resistant to irradiation and high temperatures, and were gradually replaced by Si devices in the 1860s. Nowadays, Si accounts for over 95% of the semiconductor device market, and almost 100% of integrated circuits use Si materials. Given the maturity of the Si industry and the high reliability of Si based devices, Si will continue to maintain its leadership and core position in the semiconductor industry in the 21st century. However, Si materials also have limitations in their physical properties, such as limited applications in optoelectronics and high-frequency high-power devices   Second generation semiconductor There are many second generation semiconductors, mainly including binary and Ternary compound semiconductors composed of III-V family, such as GaAs, lnSb, GaAsAl, etc; Solid solution semiconductors, such as Ge Si; Amorphous semiconductors, such as amorphous Si, amorphous oxides (such as IGZO), etc; Organic semiconductors, such as copper phthalocyanine. The second generation of semiconductors is mainly used for producing high-speed, high-frequency, high-power, and light-emitting electronic devices, and has a complementary relationship with the first generation of semiconductors. In addition, the second generation semiconductor is also an excellent material for making high-performance microwave, millimeter wave and light-emitting devices. With the rise of information technology, it is widely used in optical communication, mobile communication, and satellite communication. However, second-generation semiconductors also have prominent drawbacks: GaAs and InP are scarce materials, very expensive, and toxic, polluting the environment.   Sumitomo CMC550011ABWG01 Main Control Card Third generation semiconductor The third generation of semiconductors generally refers to wide bandgap semiconductors, with the main representative materials being SiC, GaN, AlN, and ZnO. The bandgap width of these materials is very large, generally greater than 2.3 eV, such as SiC 3.2 eV and GaN 3.4 eV. The wide bandgap gives third-generation semiconductors a significant breakdown electric field. In addition, third-generation semiconductors also have the characteristics of high thermal conductivity, high electron saturation rate, greater radiation resistance than Si, and can be applied to high-power devices. Therefore, third-generation semiconductors are mainly used in semiconductor lighting, lasers, detectors, and high-power and radiation resistant electronic devices. With the rise of 5G communication, third-generation semiconductors have also made a difference in the field of 5G communication. The most popular GaN fast charging device currently sold is the third-generation semiconductor GaN.   Advanced Energy 3152352-103 Power Supply   Rockss Automation Co., Ltd. is dedicated to providing high-quality semiconductor components, as well as expert sales and maintenance services. Established with a focus on meeting the needs of the modern market, our company has quickly become a trusted provider of top-quality components for the semiconductor industry.

Allen-Bradley Inverters provide flexible packaging for power supply, control, and operator interfaces to meet space, flexibility, and reliability requirements, as well as provide rich functionality, allowing users to easily assemble Inverters. It has the characteristics of flexibility, space saving, and convenient use, making it an economical choice for speed control in applications such as mechanical tools, fans, pumps, conveyor belts, and logistics processing systems. So what categories can Allen-Bradley Inverters be classified into? 1. Low voltage AC Inverter Low voltage Inverters provide a wide range of features and functional options, suitable for your various application requirements. The power range is 0.25-3000 horsepower/0.2-2200 kW; Suitable for global voltages of 100-690 volts. Supports induction and permanent magnet motor types. Including communication and security functions. It can seamlessly integrate with Logix control systems. Allen-Bradley 22F-B2P5N103 Inverter     2. Medium voltage AC Inverter Medium voltage frequency converters can provide efficient motor control to meet various demanding application requirements: The voltage range is 2.3-10 kV,and the motor current can reach up to 720A. Provide air and liquid cooled versions. Support high-performance torque control and achieve simple speed control. Including communication, safety, and arc resistance functions. It can seamlessly integrate with Logix control systems.     Allen-Bradley 22P-D045A103 AB400P Inverter     3.DC Inverter DC Inverters can provide flexible and practical DC control solutions. The power range is 1.5-1400 horsepower/1.2-1044 kW; Suitable for global voltages of 200-690 volts. It can be flexibly configured according to your application. Including special torque control suitable for lifting applications. It can seamlessly integrate with Logix control systems.   Introducing Rockss Automation, where power meets precision. Our wide range of Allen-Bradley Inverters showcases unparalleled inventory and diversity.With our extensive stock, finding the perfect inverter for your specific requirements has never been easier. Whether you're looking for efficiency, reliability, or versatility, we have it all.          

   How to choose a suitable Inverter for existing motors? There is a certain amount of knowledge and a little skill in this. As a professional electromechanical equipment service provider, Rockss Automation not only helps customers choose motors well, but also cannot make careless choices about motor control. So, let's analyze and analyze today how Siemens Inverters can be perfectly combined with Siemens motors. SIEMENS 6SE3211-5BA40 Inverter       The commonly used types of Siemens Inverters are as follows: 6SE6440, 430, and 420. Usually, the choice between these three is also meticulous. Here are a few points for everyone from Rockss Automation: 1. Products powered by 380-480VAC and without filters are commonly used in Siemens 440 series Inverters. Just find the corresponding model for the 440 series. 2. There are two types of product oils for partial power consumption: imported with original packaging and domestically produced. The price of domestically produced products is cheaper compared to pure imported products. 3. The power corresponding to the Inverter model refers to the high torque output power. 4. Generally, the standard Siemens Inverter is optional and does not include a control panel. The control panel needs to be ordered separately. The control panel includes both Chinese and English versions. The English control panel is a bit cheaper than the Chinese one. SIEMENS 1FK7101-5AF71-1SA0 Motor      As mentioned above, the 440 series Siemens Inverter commonly used for 380V voltage of domestic standard motors. So, how to choose a suitable 440 series frequency converter? 440 power range: 0.37-255kW. Among them, 0.12kW-200kW (CT constant torque); 0.12kW-250kW (VT variable torque). Generally speaking, the Inverter is matched according to the power of the motor, and the ratio is 1:1 original. If the distance between the heavy load and the Inverter is relatively long, the power of the Inverters one to two levels higher than the power of the motor. If a Inverters equipped with multiple motors, it is sufficient to choose one level higher than the motor power, which is not the total power of the motors carried.     When selecting a Inverter, the following parameters should generally be considered:   1. Power   Choose the high-power Inverter for the high-power motor. However, for special occasions such as high temperatures and altitudes, it can cause a reduction in the capacity of the frequency converter, making it easy for the Inverter to amplify by one gear.   2. Current The rated current of the Inverter is greater than the maximum current of the motor operation, and it is generally marked on the nameplate.   3. Supply voltage   Generally, low-voltage frequency converters have single-phase 220-240V, three-phase 380-480V power supply, etc. The specific selection is rated according to actual needs.   4. Load inertia   In some situations, such as most ventilation ducts, there is no requirement for the motor to stop in a timely manner, while in some transmission belts, it is required to stop in a timely manner, so it can also be used as a reference condition for selecting frequency converters. SIEMENS 6SE3210-7BA40 Inverter    A Siemens Inverter can control multiple motors. This application situation is commonly referred to as "one dragging many". It has been running for many years and rarely malfunctions. However, it is important to pay attention to the following points when dragging a frequency converter:    1. The control method must use linear V/F control    2. One drag multiple is only used in situations where there are no strict requirements for motor speed regulation;    3. The total rated current of each motor should be less than the rated current of the variable frequency;    4. Independent thermal relays should be installed on each motor.    5. The power of each motor should be consistent as much as possible    6. The differences in physical characteristics of each output circuit should be minimized, including:    A. Motor characteristics, such as speed;    B. Cable characteristics, such as cross-sectional area, length, and material.    7. If the motor characteristics are basically consistent and the cable length approaches the allowable limit length of the frequency converter, methods such as increasing the outlet reactor, reducing the switching frequency, and appropriately increasing the Inverter can be adopted.      For mid-range applications, customers usually consider Siemens or ABB when choosing frequency converters. Indeed, in certain high-end special industries such as lifting and steel rolling, I personally believe that using frequency converters from foreign brands such as Siemens will provide more protection and fewer malfunctions. It's a lot easier to use in the later stage.

     Mitsubishi servo drivers may stop working due to various reasons such as improper operation or equipment failure during daily use. At this point, the cause of the fault should be confirmed according to the Mitsubishi servo driver alarm code before resolving it. Below we will analyze several common Mitsubishi servo driver alarm codes and solutions!    A.Mitsubishi servo driver alarm code : AL31.1  Fault analysis: It is a motor overspeed alarm.  Reason analysis: 1. Input command pulse frequency is too high; 2. Excessive overshoot caused by too small acceleration and deceleration time; 3. Mitsubishi servo system is unstable; 4. The electronic gear ratio is too large; 5. Mitsubishi servo encoder malfunction;  Corresponding processing methods: 1. Set the correct pulse frequency; 2. Increase the time constant of addition and subtraction; 3. Reset the gain; 4. Set the correct electronic gear ratio; 5. Replace Mitsubishi servo encoder or Mitsubishi servo motor;    B.Mitsubishi servo driver alarm code ALE6.1  Fault analysis: Mitsubishi servo motor emergency stop  Cause analysis: The line between Mitsubishi servo driver EMG and SG is disconnected  Corresponding handling method: Just short circuit the EMG    C.Mitsubishi servo driver alarm code AL52  Fault analysis: The stuck pulse in the deviation counter exceeds the resolution capability of Mitsubishi servo encoder multiplied by 10  Reason analysis: 1. The setting of the acceleration and deceleration time constant is unreasonable; 2. The torque limit value is too small; 3. Due to a decrease in power supply voltage, the motor torque is insufficient and the servo motor cannot start; 4. Position loop gain 1 is too small; 5. Due to external force, the servo motor shaft rotates; 6. Mechanical failure; 7. Encoder malfunction.   Corresponding processing method: 1. Set the correct acceleration and deceleration time constant (refer to the Mitsubishi servo motor user manual); 2. Increase the torque limit value; 3. Replace the Mitsubishi servo motor with a higher power; 4. Adjust the set value to the range where the Mitsubishi servo system can operate normally; 5. Increase torque limit value, reduce load, or choose Mitsubishi servo motor with larger output 6. Install the limit switch after checking the operating mode 7. Replace Mitsubishi servo encoder or Mitsubishi servo motor    Our company Rockss Automation provides Mitsubishi drive sales and repair services. Welcome to inquire!

 The Parker CP*OEM750X-10436 Drive is optimized to operate size 23 and 34 two phase permanent magnet hybrid step motors. It is a highperformance module around which the Original Equipment Manufacturer (OEM) can design a motion control system. The drive offers a basic set of features designed to meet the needs of most customers. It is compatible with all Compumotor indexers. The Parker CP*OEM750X-10436 is small and convenient to use. It installs with only two screws; the screws also provide grounding and captivate the cover. Its right-angle screw terminal allows sideby-side mounting, and its small footprint maximizes cabinet space. The snap-on molded cover is removable for drive configuration, and helps provide a barrier against environmental contamination. The drive is the same size as a 3U Eurorack card. Its standard 25 pin D-connector is compatible with universally available connectors.A typical system is shown below.     INPUT POWER The Parker CP*OEM750X-10436 requires a single external power supply. The drive accepts 24VDC to 75VDC for its power input. MOUNTING The drive is fully enclosed, and uses a heatplate technique to provide a heat dissipation path. You must attach the OEM750 to a suitable heat-dissipating mounting surface. DIP SWITCHES DIP switches are located inside the Parker CP*OEM750X-10436. During the installation procedure, you will set these DIP switches to scale the drive for resolution, waveform and other functions. INPUT & OUTPUT All communications take place through the Parker CP*OEM750X-10436's 25-pin D-connector. Available inputs and outputs are: • Step Input • Direction Input • Remote Input • Fault Output • Gear Shift Input   Our company--Rockss Automation Technology Co., Ltd. is a service company specializing in the sales and maintenance of automation products. We have a long-term stock of rare or discontinued international renowned automation accessories. We have a large inventory of Parker brand products, welcome to consult and purchase!

The ABB GJR5252300R0101 Analog I/O Module was available for safety-related applications. It was based on the time-proven system structure of the AC31 series 90 variant.   The ABB GJR5252300R0101 Analog I/O Module is used as a remote module on the CS31 system bus. It contains 16 analog input/output channels that can be configured in two operating modes: • Operating mode "12 bits":8 input channels, individually configurable±10 V or 0...20 mA, 12 bit resolution plus8 output channels, individually configurable±10 V or 0...20 mA, 12 bit resolution • Operating mode "8 bits":16 channels, configurable in pairs as inputs or outputs, 0...10 V oder 0...20 mA, 8 bit resolution• The configuration is set with DIL switches. • The PLC offers an interconnection elementANAI4_20 for measuring signals of 4...20 mA   The ABB GJR5252300R0101 Analog I/O Module uses up to eight input words on the CS31 system bus plus up to eight output words. In the operating mode "8 bits", 2 analog values are packed into one word.The operating voltage of the unit is 24 V DC. The CS31 system bus connection is electrically isolated from the rest of the module.The module offers a number of diagnosis functions    The ABB Analog I/O Module provided by Rockss Automation are designed with ease of use in mind and can be highly customized and adjusted to meet your specific needs. It is also equipped with advanced safety features to protect personnel and equipment.    

   The ABB 3BHB013088R0001 is an IGCT (Integrated Gate-Commutated Thyristor) module produced by ABB, a leading technology company. IGCTs are high-power semiconductors used in various applications such as power electronics and motor drives.    The ABB 3BHB013088R0001 IGCT module is designed to provide reliable and efficient control of high-power electrical systems. It combines the features of a thyristor and a gate turn-off (GTO) thyristor, allowing for power flow control and low power losses during operation.         Here are some key features and characteristics of the ABB 3BHB013088R0001 IGCT module: High Power Handling: The module is capable of handling high power levels, making it suitable for demanding applications. Integrated Gate Drive: It has an integrated gate drive circuitry, simplifying the control and driving requirements of the IGCT. Low Power Losses: The module is designed to minimize power losses during operation, resulting in higher overall system efficiency. Fast Switching: It offers fast switching capabilities, enabling precise control and efficient operation. Protection Features: The module includes built-in protection features such as overcurrent and overtemperature protection to ensure safe and reliable operation. Compact Design: It comes in a compact form factor, allowing for easy integration into different systems and equipment.      The ABB 3BHB013088R0001 IGCT module is commonly used in industrial applications that require high-power control, such as motor drives, power converters, and various power electronics systems. Its advanced features and robust design make it a trusted choice for demanding applications where efficient power control is essential.  Wellcome to consult us——Rockss Automation!

    The Sedo Treepoint  Sedomat 2600 gives a better user experience by offering a modern design and user-friendly interface. Now being water-proof to IP67, it guarantees high quality and reliability for rugged environments. Having RFID support, it offers new possibilities in data acquisition.     Dye process control has never been easier than with the compact Sedo Treepoint Sedomat 2600. This instrument combines a big 8.4” color touch screen interface with internet technology, USB connectivity, and many other cutting edge features.     Specifications: Display: 8,4“ TFT, color, 640 x 480 pixels, touch screen Internal I/O (max.): 48 digital inputs                                            48 digital outputs                4 PT 100 inputs                4 analogue inputs 0-20mA                8 analogue outputs 0-20mA                4 fast counter inputs External I/O (option): SedoIO-P, Profi 16/Profi 32 module connection via Profibus DP Interfaces: RS232 for PC programming tools, Ethernet: link to SedoMaster and other network systems, USB for memory key and other PC peripherals Power supply: 24V DC, 2,0 A Ambient temperature: 0 - 50°C (32 - 122°F)       Applications: By simultaneously executing two batches and several functions, the next batch can be prepared, while the current batch is still active. Connection to the SedoMaster central management system. Integration with chemical dispensing and automation of dye kitchen. Master/slave-operation. Storage of a virtually unlimited number of dyeing programs. Logging of temperature curve, functions, alarms, etc. Visualization of process information on Sedomat 2600 or on a remote PC. Support of different languages and character sets, e.g. Chinese. Linear, progressive and degressive dosing curves. Control of temperature, speed, pH,flow, pressure, etc. Data logging via cloud services. RFID support for e.g. operator logon/logoff        We have a large amount of inventory and repair services, please feel free to consult and order with us——Rockss Automation!