Inverters often encounter a variety of problems during commissioning and use, during which overvoltage is the most common. After the overvoltage occurs, in order to avoid damage to the internal circuit, the overvoltage protection function of the inverter will work, so that the inverter will operate intermittently, resulting in the equipment can not be ...

It is hoped that Sunland low-voltage inverter can be divided into four series: 1.HG1000 high-performance light-load intelligent inverter, the most cost-effective, the new series is widely used in medicine, food, packaging, cable, printing and dyeing, washing, centrifuge ...

1. What is frequency conversion resolution? What's the point? In the case of digitally operated inverters, the output frequency is given in a given order, even if the frequency command is an analog signal. The smallest unit of this gradient is called the variable resolution. Change...

Sunland's low-voltage SB70 inverter integrates a high-precision rotor magnetic field directional vector control algorithm, with 250% instantaneous torque control capability. It has the original multi-form PLC operation function, which is especially suitable for industrial cleaning equipment and manufacturing equipment. Practical multi-speed function: two sets of parameters, can be rooted ...

Myth: The inverter selection only needs to consider the load power When purchasing a frequency converter, many users usually only match the capacity of the frequency converter based on the power of the drive motor. In fact, the load driven by the motor is different, and the requirements for the inverter are also different. ...

The following four steps are very important for the commissioning of the inverter with the machine (i.e., connected to the motor) and no-load (i.e., the motor without load). (1) Set the power of the motor, the number of pole pairs, and check the operating current of the inverter. （ ...

(1) Brake usage rate ED% Brake usage rate ED%, that is, the brake usage rate in the clarification book ED%. The brake utilization rate ED% is said to be the deceleration time T1 divided by the deceleration cycle T2, and the brake utilization rate is mainly to allow the braking unit and the brake resistance to have sufficient time to dissipate ...

The commissioning of the electrical system refers to the commissioning of the entire high and low voltage system. The power supply commissioning of civil electrical projects such as general residences, schools, office buildings, hotels, and shops shall be carried out in accordance with the following provisions: (1) About the commissioning of the belt in the distribution room ...

Recently, it is expected that Sunland will successfully participate in the 8th Guangxi World Sugar Industry Skills and Equipment Expo with excellent inverter products. According to the expected Sunland company leakage, the exhibition of the World Sugar Industry Skills and Equipment Expo, throughout the exhibition to domestic equipment manufacturers, there is no lack of foreign outstanding enterprises, exhibitors ...

1. Please explain the maintenance function of the inverter? (1) After detecting the abnormal situation, the correction action will be carried out automatically, such as overcurrent loss rate prevention, regeneration overvoltage stall prevention. (2) After detecting the abnormality, the PWM control signal of the power semiconductor device is closed, so that the motor can park automatically. As...

ER. The meaning of the OUE fault code is: overvoltage during standby. The possible reasons are: 1. DC bus voltage detection circuit failure; 2. The input voltage is abnormal or the power is lost during operation. It can detect whether the power supply voltage used by the inverter is normal, and in addition, it is necessary to check whether the power supply line of the inverter is ...

1. Look After taking over a faulty inverter, remove the inverter shell and clean it up, and carefully investigate the appearance, shape, and integrity of the relevant components on the circuit board with both eyes according to the type of inverter fault. This method is about charging resistors, filter electrolytic capacitors, IG ...

The external terminals of the inverter, RH, RM, RL, are speed control terminals. Through the combination of these terminals, three-speed and seven-speed control can be completed. In addition, the other terminals can be redefined, and the fifteen-speed speed can be controlled. ...

The selection of the inverter should be considered according to the type of controlled object, speed regulation scale, static speed accuracy, starting torque, etc., so that it can be easy to use and economical together with meeting the process and production requirements. According to the different forms of devices, it can be divided into four types, which can be divided into four types according to the controlled motor power and field device ...

1. Condensation The temperature difference in the workshop is large, and the inside of the inverter presents condensation. 2. Impact load. The load fluctuates greatly, and the output current of the inverter suddenly increases, resulting in module damage. 3. The inverter is overloaded in the start, ...

There are many setting parameters of the inverter, each parameter has a certain selection scale, and the inverter can not work normally due to the improper setting of individual parameters in use, so it is necessary to set the relevant parameters correctly. ...

From October 28th to 29th, the "First National Tailings Engineering and Comprehensive Utilization Skills Seminar" sponsored by the China Nonferrous Metals Society was successfully held in Dexing City, Jiangxi Province. From China Nonferrous Metals Society, China ENFI, Jiangxi Copper, Beijing Institute of Mining and Metallurgy, University of Science and Technology Beijing and other countries...

Depending on the cause of overvoltage, the countermeasures adopted are different. Regarding the overvoltage phenomenon that occurs in the parking process, if there is no special requirement for the parking time or direction, then the extension inverter deceleration time or free parking method can be selected to solve it. The so-called free parking ...

In recent years, with the development of power electronics skills, the frequency conversion speed regulation skills have been very mature, practice has proved that the use of frequency conversion speed regulation in fans, pumps and loads can save 20%-50% of the electric energy, and the use of frequency conversion speed regulation can bring the following advantages in the future, its biggest advantage is that it has ...

What are the advantages of inverter power correction? Many brands of inverter power boards, driver boards, and motherboards can be universal, as long as the type, volume, and hardware are the same, and the desired power and voltage value can be obtained by correcting the manufacturer's parameters. ...

With the rapid development of the national economy, the installed capacity of captive power plants and the planning of transmission and distribution networks have been expanding. After the power system fails, if the power supply cannot be quickly restored, it will cause huge economic losses and severe social impact. How to ensure the safety and stability of the enterprise, long-term production ...