(1) The PLC shall be installed in an environment that meets the requirements of the rules. (2) In order to facilitate ventilation and disassembly, a space of more than 80mm should be left around the PLC. (3) PLC should be a vertical device and not a horizontal device, that is, the device universal is the direction in which the words on the unit panel can be read normally, otherwise the PLC ...

1. Operating temperature. The inverter is a high-power electronic component, which is easily affected by the operating temperature, and the product is generally required to be 0-55 °C, but in order to ensure the safety and reliability of the operation, it should be considered to leave room for use, and it is best to control it below 40 °C. In the control box, the inverter ...

Input and output module, if it is the kind of relay output, it is normal to have a little movement, because the relay is a mechanical equipment, there will be a little noise during the action, but the average person can not hear it, if it is obvious, it is estimated that the relay is broken, such as a short circuit between the turns of the coil, please pay attention to: Rongji point ...

1. Maintenance of the inverter itself: Instantaneous overcurrent, overvoltage, undervoltage, overload, short circuit to ground, abnormal control circuit, then for the maintenance of the inverter itself, the overcurrent, overvoltage, undervoltage and so on set the limit value, when the inverter is running, if ...

1、CPU。 The CPU of the plc is actually the central processing unit, which can carry out the operation and processing of various data, convert various input signals into input registers, and then carry out logical operations, timing, counting, arithmetic operations, data processing and transmission, communication networking and various operations, ...

At present, PLC has been widely used in various industries such as steel, petroleum, chemical industry, electric power, building materials, machinery manufacturing, cars, textile, transportation, environmental protection and culture and entertainment at home and abroad. 1 ...

1) Investigation and investigation of problem phenomena. There are many kinds of inverter problem phenomena, for example, the same type of problem may have different problem phenomena, and different types of problems may have the same problem phenomenon, which brings difficulties to find the problem. However, the problem phenomenon is the basic basis for overhauling the inverter ...

When the touch screen is connected with the PLC, in fact, the memory of the PLC is used, (the contact screen also has a small amount of memory, which is only used to store system data, that is, the screen, controls, etc.), the touch screen and the PLC communication is generally a master/slave relationship, that is, the touch screen reads data from the PLC, and after making a judgment, it is displayed in the display ...

1. When the PLC and the host computer (or touch screen) form a monitoring system, there are many times on the screen that there are "manual", "active" and other control modes (generally more than one). In the program, you can use the "MOV" command. For example, when selecting "manual", the constant 1MOV will be ...

In order to shorten the early problem period, further extend the random problem period, and postpone the arrival of the wear and tear problem period, we will generally choose the method to take a certain approach at the beginning of the system planning.

The ladder diagram of the PLC can be understood as a programming language like the assembly and other calculator languages, but the scale of use is different! And the general practice is to convert your ladder diagram into C or assembly language (determined by the CPU used by the PLC), and then use the assembly or C compilation system to compile ...

Xinjie PLC conditions are established, why is the corresponding coil not in place? There are two possible reasons for this: (1) The same coil may be used in multiple places to perform the double coil output, and when the double coil is output, the coil on the rear side will operate first. （2） ...

1. Air opening: a total air switch, which is the power control of the entire cabinet. I believe that every cabinet must have one thing. 2. PLC: This should be selected according to the needs of the project. For example, if the project is small, it can be an integrated PLC, but if the project is more ...

1. The cause of the leakage problem Some sites use frequency converters to control the motor, which will present the problem of leakage, and the leakage voltage ranges from tens of volts to 200 volts. In view of this problem, the reason for this problem is explained and stated as follows. Depend on...

PLC programmable logic manipulators are the core part of industrial control. According to the number of I/O points of PLC, PLC can be divided into three categories: small PLC, medium and large. It is a digitally operated electronic device designed for industrial production. It uses a programmable memory to store programs that execute user-facing ...

Small PLC manufacturers introduce that PLC products have a wide variety of products, and the specifications and performance are also different. The classification of PLCs is usually based on their structure, function and number of I/O points. 1. Classified by input/output points (1) ...

The motion control mainly touches the control of stepper motors and servo motors, and the control structure mode is generally: control equipment + driver + (stepper or servo) motor. The control equipment can be a PLC system, or a special automation device.

(1) The PLC itself should be grounded according to the specified wiring specifications and grounding conditions, and attention should be paid to prevent the use of common grounding wires with Xinjie servo, and the two should be separated as much as possible when grounding. (2) When the power supply condition ...

Mark point, also known as reference point, provides measurable points for all processes in the surface mount process to ensure the final positioning accuracy.

As the only domestic brand among the top 10 small PLC shopping malls in China, Xinjie has broken through the core shopping malls dominated by international brands for more than ten years, and the unswerving commitment of the leader Li Xin to independent development can be seen. ...

Introduction to the glass sealing industry As a relatively old industry, the vitality of the glass industry has further burst out in the modern society, due to the social development and the improvement of people's aesthetics, the demand for glass in all walks of life is also increasing, which is also more abundant.