On December 10, 2014, the annual meeting of the inverter branch of China's electrical appliance industry association and the national inverter speed regulating equipment standardization skills committee was held in Shanghai, and 120 representatives from more than 80 professional enterprises attended the meeting.
The meeting was presided over by Mr. Zhong Mingzhen, chairman of Tianjin Electric Drive Design and Research Institute Co., Ltd. and chairman of the inverter branch. Secretary-General Wang Jianfeng read out the 2014 operation report and 2015 operation plan of the inverter branch.
The meeting commended the annual advanced operating units of the inverter branch and the bidding committee, and expected Sunland Technology Co., Ltd. to win the two honors of "2014 Advanced Association Operating Unit" and "2014 Advanced Standardized Operating Unit". Together, it is expected that Sunland's SBH series high-voltage inverter and SB70 high-performance vector control inverter won the honor of "Quality and Trustworthy Product" by China Electrical Equipment Industry Association. Over the years, it is expected that Sunland, as a member of the inverter branch, will conscientiously implement its membership responsibilities, take the initiative to participate in the construction of the association, and actively participate in various activities to ensure that the construction of the association is carried out in depth and solidly.
At the standard review meeting of the National Frequency Conversion Speed Regulation Equipment Standardization Committee held on the 11th, it was expected that Sunland, as the main drafting unit, participated in the review of the two national specifications of "Special Frequency Conversion Speed Regulation Equipment for Machine Tools" and "Special Frequency Conversion Speed Regulation Equipment for Injection Molding Machines". As a member of the Bidding Committee, Senlan is expected to actively participate in the formulation of the association's specifications, and the company participated in the drafting of GB/T30843.1-2014, GB/T30843.2-2014, GB/T30844.1-2014, GB/T30844.2-2014 The four specifications agreed to be released on June 24, 2014 and implemented on January 22, 2015.
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Inverter selection according to capacity matching - Senlan
We need to ensure that the capacity of the inverter is matched. First of all, according to the nature of the load, the correct type of inverter is selected. The general principle is what nature of the load characteristics with what characteristics of the inverter.
(1) Constant torque production equipment - in the speed regulation range ...
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The inverter is different from the inverter power supply - Senland
In terms of power supply, everyone may know that the inverter and the inverter power supply are auxiliary equipment for charging electrical appliances, but many people do not know what is the inverter power supply and what is the inverter. With the continuous progress of the times, electrical appliances will be constantly updated, and auxiliary equipment is constantly changing.
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Inverter control method for motor - Senlan
1. U/f stable control
U/f control is to change the voltage of the motor power supply together with changing the frequency of the motor power supply, so that the magnetic flux of the motor is kept constant, and the efficiency and power factor of the motor do not decrease within a wide range of speed regulation. Because it is to control the voltage and frequency ...
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Commonly used motor protection method - Hope Sunland
1. Install a reactor at the output of the inverter: This method is the most commonly used, but it should be noted that this method has a certain effect on shorter cables (less than 30 meters), but sometimes the effect is not ideal.
2. In the inverter ...
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Industrial control circuit board capacitor damage fault characteristics and maintenance - Senlan
Capacitor damage is the highest problem in electronic devices, especially electrolytic capacitors.
Capacitor damage is manifested in: 1. Capacity becomes smaller, 2. Capacity is completely lost, 3. Leakage, 4. Short circuit.
Electricity...
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Sunland won the "well-known brand of China's domestic inverter" for the fifth time in a row
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., personally ...
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Inverter remote control wiring method - Senlan
1. Connect X (switching input) drive terminal to control the inverter start-stop/forward and reverse rotation;
2. Connect to the AI (analog input) terminal to control the frequency of the inverter (perhaps made into PID closed-loop control active conditioning frequency)
3. Other DO (switching output) is used for transmission ...
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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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The reason for the humming sound after the motor plus the frequency conversion governor - Senlan
The so-called "hum" sound, that is caused by the frequency of the inverter's output waveform carrier, generally if the inverter you use is a fixed carrier, at the moment the motor is screaming, the human ear is more stimulated, then you can adjust the carrier frequency (inverter skills manual function table ...
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Servo motor regular diagnosis and repair method - Senlan
1. Common faults of motor heating up too high or smoke motor
Causes: 1. Excessive load; 2. Two-phase operation; 3. Blocked air duct; 4. The working temperature is too high; 5. Interphase or inter-turn short circuit fault of motor stator winding; 6. Motor stator winding grounding device; 7. The power supply voltage is too high or too low;
Overhaul...
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Introduction to the wiring rules of Sunland inverter
It is necessary to separate the signal line from the power line: when using analog signals for long-distance control of the inverter, in order to reduce the disturbance of the analog amount from the inverter and other equipment, please separate the signal line of the control inverter from the strong current circuit (main circuit and sequential control circuit). Inverter ...
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At the physical level, the stable operation of the inverter is guaranteed-Senlan inverter
For the most popular electrical control equipment inverter (Variable-frequency Drive, VFD), as a precision electronic industrial control equipment, in order to run smoothly for a long time, we, as professional and technical personnel, need to be on the VFD device or before the operation.
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Sunland Shore Power Innovation - The world's first high-voltage water-cooled four-quadrant shore power system rolled off the production line
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Hope Senlan inverter control panel button function diagram
Hope Senlan inverter control panel button function diagram
1. The "FUNC/DATA" button is a programming key, press this button once to convert the operation mode, and press it again to read and write the utility code.
2."S ...
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Motor encoder and rotor pole phase zero alignment repair - Sunland
1. Phase alignment method of incremental encoder
The alignment between the phase of the UVW electronic transmutation signal and the phase of the rotor pole, or the phase of the TV spot, of the incremental encoder with the signal exchange is as follows:
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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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Introduction of Sunland inverter
1. Obtain accurate motor parameters from low to high parameters at different frequencies, and establish motor models of corresponding frequency bands in different frequency segments, so that the inverter can control the motor from low to high.
2. V/F control
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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.
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The reason for adding a frequency converter to the crane control system - Senland
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The drive panel does not display fault analysis
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2. The inverter module is damaged
It is usually caused by damage to the motor or cable and the failure of the drive circuit. After repairing the drive circuit, ...
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