On April 15, 2011, the "Century Tour of China's Automation Industry (CAIE2011)" was held in Beijing, and Sunland inverter was once again re-elected as "China's well-known brand of domestic inverter". Dr. Chen Bin, President of Continental Hope Group and Chairman of Hope Sunland Technology Co., Ltd., attended the event in person and announced the purpose of the speech, and hoped that He Jianbo, General Manager of Sunland Technology Co., Ltd., would receive the award on behalf of the company. This is the fifth time that Sunland has won the award.
"China's automation industry century" activity has been six years ago, which not only witnessed the growth of China's automation industry in the past six years, but also showed and recorded the enterprises, individuals and products that have shining points in the entire industry in the past six years. Today, this event has become the most influential annual event in the field of automation in China.
The meeting kicked off in the unique launching ceremony, and more than 100 leaders, experts and business leaders of automation professions, including Mr. Dai Ruwei, chairman of the Chinese Society of Automation, attended the meeting. At the subsequent high-level forum of "Leading Enterprises to Promote China", President Chen Bin and representatives of six enterprises, including Rockwell, Phoenix, Hollysys and ABB, made wonderful comments on the theme of "innovation, innovation and sustainable development", and shared with us the touching stories and valuable experiences of Senlan in innovation and development.
After the forum, the award ceremony began. At the meeting, the 2010 annual person of the year, the enterprise of the year, the annual news, the most competitive innovative product of the year, the most influential engineering project of the year, the outstanding paper of the year and other awards in the field of automation in China were announced and awarded. In the annual special award, Sunland once again won the "well-known brand of China's domestic inverter".
As one of the first batch of enterprises engaged in the research of inverter technology in China, Senlan has consistently maintained its innovative energy, constantly innovated, and led the development of shopping malls and careers. In 2010, Sunland launched the industry-leading 1100kW high-power four-quadrant inverter, which has made substantial breakthroughs in domestic high-end shopping malls and large-scale engineering projects, and gradually established and improved the marketing and service network throughout the country and Asia, Europe and the Americas, and the international shopping malls have developed rapidly.
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The key points of the use of inverter - Sunland inverter
In order to ensure the safe, efficient and reliable operation of the inverter, the following keys should be grasped when using the inverter:
1) It is necessary to reliably ground the grounding terminal of the inverter, so as to effectively press the radio frequency disturbance and enhance the reliability of the system.
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Inverter parameter setting method - Senlan
1. Control method:
i.e. speed control, rotation control, PID control, or other methods. After the control method is adopted, it is generally necessary to carry out static or dynamic identification according to the control accuracy.
2. Minimum operating frequency:
That is, the minimum speed of the motor operation, the motor at low speed ...
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PLC and inverter connection control method - Senlan inverter
There are three connection control methods between PLC and inverter:
1. Use the analog output module of PLC to control the analog output module of the inverter The analog output module of the PLC outputs 0-5V voltage signal or 4-20mA current signal, which is used as the analog of the inverter.
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The remote control of the inverter meets the function - Sunland inverter
In general, the long-distance operation of the frequency converter requires the following functions:
1) Long-distance setting, if the parameters only need to be set for the first time, and do not need to be adjusted during operation, then long-distance setting is not required.
2) Long-distance start-stop, long-distance start or stop inverter, and ...
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The manufacturing standard of Sunland inverter cabinet
Planning specifications: The planning of inverter cabinets should conform to relevant national norms and industry norms, such as GB/T15576-2018 "Low-voltage Distribution Cabinet", GB7251.1-2017 "Low-voltage Complete Switchgear and Control Equipment", etc.
Material specifications: The materials of the control cabinet should conform to the relevant codes and regulations.
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Precautions for the selection of exhaust fan inverter - Senlan
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.
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Limit switch wiring method - hope Senlan
Limit switch is an electromechanical control element used to detect the direction of the movement of the machine or equipment, and send a signal when the specific position is in a specific direction to control the operation or stop of the equipment. It is often used in industrial production processes, such as CNC machine tools, conveyors, loading and unloading robots, etc.
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There is a problem with the inverter-controlled motor pressing the stop button
What happens when the inverter-controlled motor presses the abort button, and the motor is not controlled to speed up?
1. If it is a newly installed inverter, it is generally necessary to consider the wiring problem, you can first change the parameters to switch to the panel control, the panel is given the frequency, and then see if the inverter operation will appear in this ...
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How far apart is the motor from the inverter - Senlan inverter
The supplier of the supporting equipment of the inverter reminds you that the voltage waveform output by the inverter is similar to a sine wave, but not a real sine wave. Its waveform contains a large number of harmonic components, especially the higher harmonics will increase the output current of the inverter, causing the motor winding to heat up, and produce oscillation.
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Inverter braking resistance connection method - Senlan inverter
If the drive has a built-in braking unit and additional braking resistors, it is important to pay attention to the correct wiring of the braking resistors. The braking resistor should be connected between the P terminal and the DB terminal, but not between the P terminal and the N terminal, otherwise the three-phase rectifier bridge will operate at full load when it is not running, resulting in the equipment can not be ...
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Inverter heat dissipation treatment in use - Sunland inverter
If you want to make the inverter last a long time, you must seriously consider the problem of heat dissipation. Because the failure rate of the inverter increases exponentially with the increase of temperature, the service life decreases exponentially with the increase of temperature. A 10 degree increase in ambient temperature halves the service life of the inverter. Thus...
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Application of Sunland inverter in sugar separator
First, the operation of the machine before the technical transformation
The sugar separation process of a sugar factory in Yunnan uses centrifugal dehydration method. The separation machine is mainly composed of a cone drum and a drive motor, and the motor shaft is directly connected to the bowl. Solid sugar crystallized from a high concentration of sugar water, in a cone bowl ...
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I/O (Input/Output) Selection – Senland
In the 90s of the 20th century, PLC has formed a variety of PLCs: micro, small, medium, large and giant. According to the number of I/O points, it can be divided into five types: micro PLC (32 I/O), small PLC (256 I/O), medium PLC (1024 I/O), large PLC (4.69 I/O), and giant PLC (8195 I/O).
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Suppression method of electromagnetic interference of inverter - Sunland inverter
The operating principle of the inverter determines that it will have a certain disturbance, which may bring EMC (electromagnetic compatibility) problems to the equipment or system, and the inverter, as an electronic device, will also be affected by external electromagnetic disturbance.
Below...
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The harm of low temperature to the inverter - Senlan
Most VFDs are suitable for -10°C-50°C, and if the temperature is too low, the VFD will be affected.
Precautions for low-temperature operation of VFD:
1. VFD should be operated in an environment above minus 10°C as much as possible, preferably indoors.
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The reason for adding a frequency converter to the crane control system - Senland
Prior to the introduction of frequency converters, overhead crane operators operated the cranes using contactor-based controls. For low-cycle cranes, the system is equipped with a single or two-speed motor. For cranes with higher load cycles, they use so-called wound rotor motors.
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Sunland - inverter operation process and factory value restoration
The general operation process is as follows:
Enter the program through the operation panel and set the parameters, and set the relevant parameter groups such as the start-stop method, operation and control form according to the requirements of the industrial control. After confirming that the wiring is correct, the no-load power on test run and ...
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Ensure the normal operation of the inverter in a humid environment
Due to the heavy rain and humidity in some areas recently, in order to avoid long-term power failure and the impact of wetting on the inverter, the following points can be used as various precautions before customers resume production:
1. Look inside the electrical cabinet, e.g. ...
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Sunland inverter does not show fault repair
After inspection, the circuit board of the machine is composed of a fan switching power supply board, a control board with a switching power supply and a driving board, etc., the fan power supply and the control board operation power supply are independent of each other, the fan power supply output is normal, and the control board operation power supply is not output due to the problem.
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Inverter maintenance and cleaning inspection method - Senlan inverter
There are many special faults, which come and go, looming, making it impossible to judge and deal with. At this time, you can clean the circuit board with water or alcohol, and brush off the dust and rust on the circuit board with a soft brush, especially pay attention to the solder joints are dense, and the circuit near the 0 volt copper layer is also ...
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