Sunland inverter does not show fault repair

Hope Sunland inverter is a high-performance inverter product, which has high operational reliability, high energy efficiency, strong control performance and long service life. Hope Sunland inverter has been widely used in industrial process production control, machinery control, water treatment, construction and transportation and other fields. This article will start with ...

From September 15th to 19th, the 22nd China International Industry Fair was held at the National Convention and Exhibition Center (Shanghai). As the first national industrial exhibition held under the normalization of epidemic prevention and control this year, the theme of this expo is "Intelligence, Interconnection: Enabling the New Development of Industries".

Air pollution in port cities mainly comes from cargo loading and unloading operations and emissions from ships calling at ports; Shore power connection refers to the closure of the auxiliary engine during the port of the vessel, and the shore power is supplied by the port. At 9:08 on December 25, 2018, the world's first ...

On December 10, 2014, the inverter branch of China's electrical appliance industry association and the national inverter speed regulating equipment standardization skills committee professional annual meeting was held in Shanghai, 120 representatives from more than 80 professional enterprises attended the meeting, and expected Senlan to also serve as the vice chairman of the inverter branch ...

The signal line and the power line must be routed separately: when using the analog signal to remotely control the inverter, the signal line of the control inverter and the strong current circuit (main circuit and sequential control circuit) can be separated from the inverter and other equipment to the analog interference, and the interval should be more than 30cm. Signal ...

1. What is regenerative braking? If the motor decreases the command frequency during operation, the motor becomes an asynchronous generator and works as a brake, which is called regenerative (electrical) braking. 2. Can you get more braking power? Regenerated from the motor ...

1. The capacitance is generally indicated by "C" plus a number in the circuit (e.g., C25 indicates the capacitance numbered 25). A capacitor is a component composed of two metal films close to each other and separated by an insulating material in the center. The characteristic of the capacitor is first and foremost the communication through the DC block. The size of the capacitance is ...

Grid-connected photovoltaic inverter is one of the core components of solar photovoltaic power generation system, the main types are: central inverter, modular inverter, micro inverter, DC ...

The input and output currents of the inverter contain many higher harmonic components. In addition to the lower harmonics that can constitute the reactive power loss of the power supply, there are many harmonic components with high frequencies. They will transmit their own energy in various ways, forming a positive impact on the inverter itself and other equipment.

Hope Sunland Technology Co., Ltd. is a national key high-tech enterprise dedicated to the research and development of high, medium and low voltage frequency conversion technology and the design, development, production, sales and service of related products.

The types of production machinery are complex, the functional and process requirements are different, and the torque characteristics are also different, therefore, before the application of the inverter, the first thing is to understand the nature of the load carried by the motor, that is, the load characteristics, and then select the inverter and the motor. There are three types of loads: ...

In the process of operation, try to ensure that the inverter (hereinafter referred to as -VFD) has a satisfactory acceleration and deceleration time, and the VFD has its own soft start function when starting or accelerating; When the power is shut down or the speed is slowed down, it has the function of soft shutdown. Add acceleration and deceleration times as much as possible within the range promised by the device. When the device requires ...

1. The "FUNC/DATA" key is a programming key, press this button once to convert the operation mode, and press it again to read and write the function code; 2. The "SET/>>" button is the display switch and shift key, press this key to switch the display content, and press it again to ...

1. The ambient temperature ---- is generally "-10-+40°C"; Derating between 40 and 50°C, the additional output current must be reduced by 1% for every 1°C increase. If the ambient temperature is too high and the temperature changes greatly, the insulation of the inverter will be greatly reduced, which will affect the life of the inverter. ...

1. Whether it has perfect maintenance function There will be many problems in the production process of the equipment, and if you want to prevent accidents, the equipment must have a perfect maintenance function, so as to prevent the loss of the enterprise. Therefore, when buying an exhaust fan inverter, you need to understand the safety function of the equipment first.

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 ...

The presentation of inverters has brought a revolution to industrial automation control and motor energy saving. Industrial production is simply inseparable from the inverter, even in the daily livelihood, elevators, inverter air conditioning has become a part of the insistence, inverter from the beginning into all corners of production, subsistence. However...

1. Select the inverter according to the load characteristics Second, when selecting the inverter, the current value of the practical motor should be used as the basis for the selection of the inverter, and the rated power of the motor can only be used as a reference. Secondly, it should be fully considered that the output of the inverter contains higher harmonics, which will form the power factor of the motor.

In the process of repairing the inverter, we can find that because of the back electromotive force in the stator winding, the electromotive force in the synchronous generator state and the self-induced electromotive force in the self-loop rotor, the current impact will inevitably have a negative impact on the motor, the inverter (Variable-frequency ...

If the three power cables of the servo motor (SM) are not connected correctly, there may be no alarm in the static state. But as soon as the motor is operated manually or actively, the motor jumps off or starts to flutter, such as jumping when the speed is added too high, the system will issue generalized faults, etc.