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.
1. Control method: that is, 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 motor operation, when the motor is running at low speed, its heat dissipation performance is very poor, and the motor will run at low speed for a long time, which will lead to motor incineration. In addition, at low speeds, the current in the cable will also increase, which will also cause the cable to heat up.
3. Maximum operating frequency: the maximum frequency of the general inverter is 60Hz, and some even to 400 Hz, the high frequency will make the motor run at high speed, which is for the general motor, its bearing can not run at extra speed for a long time, whether the rotor of the motor can accept such centrifugal force.
4. Carrier frequency: the higher the carrier frequency is set, the larger the higher harmonic component, which is closely related to the length of the cable, the heating of the motor, the heating of the cable and the heating of the inverter.
5. Motor parameters: The inverter sets the power, current, voltage, speed and maximum frequency of the motor in the parameters, and these parameters can be directly obtained from the motor nameplate.
6. Frequency hopping: at a certain frequency point, there may be resonance phenomenon, especially when the whole equipment is relatively high; When operating the compressor, avoid the surge point of the compressor.
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Motor inspection and maintenance, motor problems - Senlan
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Hope Sunland inverter fault code
Hope Sunland inverter part of the fault code
Er.ocb (1) Overcurrent at the moment of starting: There is a short circuit inside the motor
There is a short circuit in the motor wiring
The starting voltage is too high
Check the motor and wiring
Check the motor wiring
Seek service
Check the torque ...
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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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Analysis of Sunland inverter fault anomaly
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The comprehensive application of Sunland's high-power boiler feed pump has added another classic
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In 2020 ...
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Causes and solutions of inverter skipping current faults - Senlan
1. There is a short circuit to the ground in the output circuit of the inverter, you can check whether the wiring is correct and troubleshoot
2. If the motor parameters are incorrect, you can check the parameter settings and identify the parameters
3. The acceleration time is too short, and the acceleration time can be increased.
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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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The rail-rail power supply is a kind of switching power supply that is installed through the rail-type device, which is mainly used to monitor the voltage, current, temperature and other different aspects of the equipment, so that it can play a good maintenance effect. This switching power supply has a variety of different characteristics such as small size and light weight, ...
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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:
1) Use a DC power supply to pass the UV winding of the motor to less than the amount of ...
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1. Classified according to the input voltage level
According to the input voltage level, the inverter can be divided into low-voltage inverter and high-voltage inverter, and the low-voltage inverter is common in China with single-phase 220 V inverter, three-phase 220 V inverter, and i-phase 380 V inverter. High-voltage inverters are commonly used in 6 kV, 10 kV transformers.
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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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Inverter with no-load operation and commissioning - Senlan
(1) Set the power of the motor, the number of pole pairs, and check the operating current of the inverter.
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Failure of robot contactor and inverter - Senland
Robot contactors are noisy?
Cause:
It is likely that the joint contact surface of the contactor is uneven, and the surface is sand or rust. The result will constitute a phase loss, which will lead to the burnout of contactors, switch frequency conversion and other components.
Solution:
will control the ...
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Causes and treatment methods of inverter inverter module damage - Senlan
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Can the lower end of the leakage switch be connected to the inverter - Senlan
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What is the fault of the hope Sunland inverter Er0UE?
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