ZJSHUYI The difference between frequency converter and servo drive www.s...

Inverter and servo drive are the most widely used driving equipment in the transmission system. When talking about the difference between the two, many people only know that inverter is often used in low-end mechanical equipment, while servo drive is mostly used in high-end mechanical equipment. This is a relatively general statement. Frequency converter is a power control device that uses the on-off function of power semiconductor devices to convert power frequency power into another frequency. It can realize the functions of soft start, frequency conversion, speed regulation, improving operation accuracy and changing power factors of AC asynchronous motor. Frequency converter can drive frequency conversion motor, common AC motor, mainly acts as the role of adjusting the motor speed. Frequency converter is usually composed of rectifier unit, intermediate circuit, inverter and controller. Servo system is an automatic control system that enables the object's position, orientation, state and other output controlled quantity to follow the arbitrary change of the input target (or a given value). The main task is to amplify, transform and regulate the power according to the requirements of the control command, so that the torque, speed and position of the output of the driving device is very flexible and convenient. www.shuyitop.com; Tel/Fax: 0086-577-62840011 WhatsApp: 008613355775769 #inverter #forfrequencydrive #ACvfd #frequencyinverter #threephaseacinverter#ZJSHUYI #acdrive #motorinverter #singlephasemotorvfddrives #frequencyconverter#SHUYITOP

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ZJSHUYI Do you know what is a fire control cabinet? www.shuyitop.com; #S...

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Fire control cabinet (automatic control cabinet) is a kind of industrial control equipment that is more common in our lives, such as corridors, underground parking lots, gas stations and other public places. However, many friends do not know what it is called or what it is used for. The following ZJSHUI editor will explain what is a fire control cabinet. The fire control cabinet is a safe fire fighting tool provided by the pump factory. Its main purpose is to protect the pump motor from overvoltage, short circuit and overload. And also has a sound and light alarm function. It plays an important role in extinguishing fire and is also a fire safety device that can help control the fire after a fire occurs. There are many ways to start the control cabinet, including direct start, soft start, star-delta start, auto-coupling start, etc. www.shuyitop.com; Tel/Fax: 0086-577-62840011 WhatsApp: 008613355775769 #softstarter #motorsoftstar #softstarters #ZJSHUYI #Softstartcabinet
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ZJSHUYI Common problems of soft starters. www.shuyitop.com; #softstarte...

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1. The motor can't get up There are two reasons why the motor cannot start. One is that one of the six thyristors is unreliable or non-conductive, the one-phase circuit passes half-wave DC, and the two-phase winding of the motor passes through the DC to start the motor. When the braking effect is reached, not only the motor cannot be started, but also the motor and the thyristor will be burned in serious cases. The second is that the motor cannot be started due to improper starting parameters or starting curve, which is the most common fault problem. 2. The thyristor is burnt The thyristor is destroyed or exploded. This kind of failure has nothing to do with domestic and foreign brands, but the failure rate is lower than that of the contactor. The main problem appears in the installation technology of the pie-type thyristor. 3. Controller burnout Compared with the soft starter, the controller burns the most seriously. Some manufacturers have this failure with repair rates in excess
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ZJSHUYI ZJSHUYI Difference between soft starter and frequency converter....

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First of all, the purpose of the soft starter and the frequency converter is different. The main problem solved by the soft starter is to reduce the starting current of the large load and reduce the impact on the power grid. The startup of large equipment will generate a very large startup current, which will cause a large voltage drop. If the traditional star-delta and other step-down methods are used, it will not only cause a larger current impact to the power grid, but also cause a larger load to the load. Mechanical shock, in this case, a soft starter is often used to start, to achieve no shock throughout the start, so that the motor starts more smoothly, thereby reducing the capacity of the power supply. The frequency converter is mainly used in places with speed regulation. It can control the speed of the three-phase motor, such as the speed regulation of the spindle motor of CNC machine tools, the transmission control of mechanical conveyor belts, large fans, and heavy-duty mach
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