Yaskawa PLC JAMSC-B2501A
Type: PLC
Brand: Yaskawa
Type: PLC
Brand: Yaskawa
Type: PLC
Brand: Yaskawa
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07/06/2022
When it comes to Proportional Valves, they are well-suited to a number of different applications in machinery, basic processes and hydro-pneumatic systems.
03/21/2022
Whether we use linear guideways in 3D printers, automatic dispensing machines, automatic screen printing machines, CNC machine tools, CNC machining centers
08/05/2020
Common oil shortage failures of scroll compressors<br></br> The compressor is short of oil for a long time-the mechanism and the friction pairs are overheated, causing the bearings to sinter and hold the shaft
07/23/2020
Foreword: The blockage of the refrigeration system is mainly caused by the ice blockage, dirty blockage or oil blockage of the capillary tube, or the dirty blockage of the dryer filter.
08/11/2023
Heat pumps are an excellent way to keep your home comfortable throughout the year. They are energy-efficient and can provide both heating and cooling to your home.
06/14/2020
Abstract: Analyze the development process of China's refrigeration and air conditioning industry from several stages, focusing on the development of refrigeration and air conditioning products in detail from two aspects of technology and market. According ﰸ2 䀀 ᅵ皥 䖒皦즠Ʋ娼ི 㲈Ʋ 䌁皦隆 ᮔDž༬皧婆ིЀ 呄ᠾ鹨់༹皧 ࠄ 00븹먱댁珵理뛐珵Љ 䕄ྦ 뤂ᐱ變뚜珵 ᴴᏩ呄ᠾ퍘ᒥ 鹨់變ᩄ ꋔྦ 瑉浥 巠皱㙲皦抐皱 巠皱 ੨皦柘皱 ᅵ皥 ب 巠皱㙲皦忈皱 ੨皦柘皱 즠Ʋǜ 勁皦즠Ʋب ǜ V / 펔B䌁皦 ᮔDž '鱤džቜ먢䇨珵呈ᠾ뤂ᐱ ⬿먲僧ᐱ靖㥲ᐲ�僬㣢ᐲ ᠾ 靖랖僧߰ ﯼ靖 �僬㣢ᐲ 臆S㥲ᐲ ᬄğ ﯼ戴 ﯤ艏S練杴 ﯼ杴 㥲ᐲ 蒠Sﯼﰸ ﲨ
02/26/2023
Types and Characteristics of Common Air Cylinders, Pen Cylinder, Thin Cylinder, Free Mounting Cylinder, Double-Shaft Cylinder, Slide Cylinder, Rodless Cylinder
03/31/2023
The compressor of the air conditioner can be said to be the core part of the air conditioner. Once there is a problem, the air conditioner will not work normally.
06/20/2020
What are the causes of air conditioning trip 1. The contradiction between the rated current of the air conditioner and the current carrying capacity of the wire. Here are two formulas involved: ①The rated current of air conditioner I=P÷U ÷power factor, the power remains unchanged, the smaller the voltage, the greater the current required. ② The current carrying capacity of the wire I=U÷R, the voltage is proportional to the current. So when the power supply voltage is normal, we must consider the line voltage drop. The longer the line, the greater the resistance, the greater the voltage drop, and the smaller the output current at the end. However, because the power of the load remains unchanged, the voltage becomes smaller, and the current that needs to be output will be larger. At this time, the wire is forced to overload, and the time will cause heating, and eventually cause the tripping of the open circuit. Some friends said that the heat of the wire will not cause the tripping of the circuit breaker. In fact, the manufacturer of the air switch has made it clear in the relevant manuals that the heat of the wire will cause the air switch to trip. Because the wire heats up, the crimp terminal will also heat up, and the resistance will become larger and larger. The larger the resistance, the greater the current consumption, and the hotter it will be, a vicious cycle. 2. Leakage During the daily maintenance work, we will encounter the situation that the air circuit trips due to the leakage of electricity. At least I have not experienced it once or twice. Regardless of the leakage of the neutral line or the leakage of the live line, a long time will cause the circuit breaker to trip. Why does the electric leakage cause the MCB to trip? There are two situations. ① Good grounding. At the beginning, the leakage current was not large, and as time went by, the leakage current became larger and larger, and eventually evolved into a short circuit to ground, unable to close. ②There is no ground wire. If the equipment is not connected to the protective ground, when the wire leaks to the equipment, it is equivalent to adding a large shunt resistance. Like this problem, if the air conditioner does not have a ground wire, when the wire leaks to the air conditioner, the air conditioner is a very large shunt resistor and will consume a lot of current. Eventually, the wire will heat up or trip open. How to determine whether the trip caused by the above two aspects can be done with a clamp ammeter. ① Measure the voltage at the input and output to see if there is a significant change in voltage drop. ②Measure whether the output current exceeds the standard. So my suggestion is: first measure the supply voltage to see if it is within the allowable fluctuation range. Then measure the current to see if it exceeds the rated ampacity of the wire. Finally, check the data one by one according to the measured data to find out the reason.
06/14/2020
Before introducing relay protection, first introduce several working states of the power system (1) Normal working state It means that all the equality and inequality constraints of the power system are satisfied, indicating that the power system me 器2 䀀 ᅵ皥 䖒皦즠Ʋ煔क़ 㲈Ʋ 䌁皦 ᮔDž༬皧煞क़Ѐ 呄ᠾ鹨់༹皧 ࠄ 00령ꐱ댁珵뛐珵Љ 䕄ྦ 뤂ᐱ뚜珵 ᴴᏩ呄ᠾ퍘ᒥ 鹨់ᩄ ꋔྦ 瑉浥 巠皱㙲皦抐皱 巠皱 ੨皦柘皱 ᅵ皥 ب