input/output reactor for frequency conversion speed regulation; Because the inverter is often subjected to the impact of inrush current and surge voltage in the process of driving the inverter motor operation governor, which will seriously damage the function and service life of the inverter and the motor, so the input reactor should be installed in front of it to press the surge voltage and inrush current, improve the power factor of the input power supply, maintain the inverter and the motor, extend its service life and prevent harmonic disturbance, and at the same time, because the inverter and the motor are selected to regulate the speed by frequency conversion. Therefore, in the process of application, high harmonics and waveform distortion are often generated, which will affect the normal operation of the equipment, so an output reactor must be installed in the output to filter out the harmonic voltage and harmonic current to improve the quality of the power grid.
The input/output series reactors are all professional manufacturers, using high-quality imported silicon steel sheets, refined by advanced technology, with small size, low temperature rise, no sound and other characteristics.
They are located between the input/output side of the inverter and the traction motor, close to the inverter unit. Its primary effect is the filtering effect, which presses the inrush current of the input side circuit to weaken the overcurrent effect of the power supply voltage imbalance on the inverter; Generally, the distance between the inverter and the motor is more than 100 meters, and it is recommended to install an output AC reactor. Because the output side of the inverter generally contains more higher harmonics. When the motor and the inverter are far apart, because there is a large distributed capacitance in the cable wire, a certain harmonic may resonate in the loop, it will form a great damage to the insulation function of the motor, and the motor will be damaged for a long time. In addition, because the line is long, a large leakage current will be generated, which will cause frequent maintenance and shutdown of the inverter.
If these inverters with disturbance sources are not equipped with reactors, they simply disturb the PLC and touch screen, disturb the photocoupler, and cause the equipment to operate normally.
|
More on that
|
The power frequency motor is not normally installed with the inverter hazard
Installing a variable-frequency drive (VFD) on the power frequency motor can complete the accurate control and speed regulation of the motor, and improve the efficiency and accuracy of the motor. However, if not properly equipped and used, it may cause the following hazards:
...
|
|
Basic conditions for Delta UPS uninterruptible power supply
1. Visually inspect the UPS and battery (or other energy storage) equipment for obstacles, and properly cool the surrounding area.
2. Ensure that there is no abnormal operation or positive warning on the UPS panel, such as: overload or overdischarge of the battery close to it.
3. Check if there is battery corrosion or other shortcomings ...
|
|
Delta's high-performance servo ASDA-A3 series is a new product
With the rapid development of automation technology and shopping malls, customers have higher and higher requirements for the speed, accuracy and function diversification of servo products. In order to get used to the needs of shopping malls, recently, Delta launched the high-performance motion control high-end AC servo system ASDA-A3 series ...
|
|
Delta's inverter process setting
1. Restore the inverter to factory settings, press the "ENTER" button to enter the parameter setting interface, and press it continuously until it is 00-00 and then stop. Press the number up button to change to 00-02. Press the "ENTER" key again, the panel value will show 0, press the number up key to change it to 9. Press the "ENTER" key, break ...
|
|
Advantages of sensorless vector control - Delta inverter
Excellent open-loop speed control without slip compensation
There is high torque at low degree, so there is no need to supply too much torque to enhance c. Lower loss, higher power
Higher power echoes – especially for stepped loads
Big...
|
|
Precautions for cleaning dust in the inverter - Delta
1. Each VFD should be cleaned and protected once a quarter. Protecting and cleaning equipment must have specific records and the signature of the person in charge. As long as the management is in place, the task can be completed with quality and quantity;
2. Before cleaning, the power supply must be blocked, and the voltage must be reduced to a safe voltage before starting to work.
...
|
|
Composition and function of Delta inverter
Delta inverter is a device that converts the power supply (50Hz or 60Hz) into AC power supply of various frequencies to realize the variable speed operation of the motor.
|
|
The inverter needs to be equipped with a braking resistor-Delta
The inverter is equipped with a braking resistor, mainly to consume part of the energy on the DC bus capacitor through the braking resistor to avoid the voltage of the capacitor being too high. Theoretically, if the capacitor stores a lot of energy, it can be used to release it to drive the motor to avoid energy waste, but the capacity of the capacitor is limited.
|
|
Introduction to Delta's RH series switching power supply
Delta's RH series switching power supply, RH series switching power supply is a high-quality power supply product series planned by Delta Power for industrial applications, with the characteristics of high rate, high reliability and high function. This series of products has a wide range of input voltages and can be applied to a variety of power input ...
|
|
Precautions for the use of Delta inverter MS300 series
Before operating the MS300 series products, please read and pay attention to the relevant safety information to ensure your own safety and product safety.
When operating the wiring and installing the inverter, it is necessary to confirm that the power supply is closed.
After blocking the communication power supply, the inverter POWER indicator (located in ...
|
|
Delta's inverter is powered on and commissioned
After the installation of the Delta inverter is completed, disconnect the output of the inverter, use the diode file of the digital meter to measure the input and output of the inverter before the power is not turned on to ensure that there is no short circuit, and then turn on the operating power supply of the inverter.
|
|
Delta was awarded an "A" rating as a "Supply Chain Engagement Leader."
On February 10, CDP released its 2021 Supplier Engagement Rating; SER) As a result, Delta received the highest scores in key scoring items such as "Supply Chain Participation" (Note 1) and "Three Emissions in the Greenhouse Gas Field" (Note 2).
|
|
The impact of grid quality on the life of the inverter – Delta
Inverter is a high-tech product, mainly composed of power electronic equipment and microelectronic equipment. The three-phase communication grid is connected to the input of the frequency converter. The input end of the inverter is a rectifier circuit, and the output end is a frequency conversion circuit. As a result, the voltages and currents on the input and output sides include abundant ...
|
|
Ways to reduce the failure rate of Delta drives
If you want to reduce the fault rate of Delta inverter, it is necessary to check it daily, and what are the detailed items?
Delta inverter fault repair ...
|
|
Precautions for the inverter installation environment – Delta
(1) Ambient temperature:
Like other electronic equipment, the inverter has certain requirements for the ambient temperature, which is generally "-10-+40°C". Because the inverter is a high-power electronic equipment, it is very easy to be affected by the working temperature, but in order to ensure the safety of the inverter's work.
|
|
Delta's method of reducing the number of inverter repairs
Inverter is a modern factory in the use of a very ubiquitous equipment, this is a new type of equipment, the price is very noble, and the price of inverter repair is also very expensive, so in the process of using inverter, pay attention to the use of inverter, on the one hand, inverter, delay inverter ...
|
|
Analysis of abnormal operation of Delta inverter
There are many setting parameters of the inverter, each parameter has a certain selection range, and the phenomenon that the inverter can not operate normally is often encountered in the application due to the improper setting of a single parameter, so the relevant parameters must be set correctly.
...
|
|
Analysis and correction of the cause of Delta servo drive alarm
Analyze and correct the cause of Delta servo drive alarms.
Control current and undervoltage protection.
Alert Number: 11.
Reason: The voltage at the end of the dynamic DC bus is lower than the specified value. Due to the instantaneous shortage of power supply capacity, the control voltage is too low.
Measure: Measure the DC bus ...
|
|
Delta's Amplon N series UPS ensures the safety of electricity consumption in pharmaceutical production lines
In recent years, in response to the development trend of automation, informatization and intelligence, pharmaceutical companies have continuously innovated, transformed and upgraded, selected fully automated intelligent production lines, accelerated the upgrading of equipment in the pharmaceutical industry, and completed the use of smart pharmaceutical technology for green, safe, high-quality and low-consumption development in the pharmaceutical industry.
|
|
Debugging method of Delta servo motor
1. Initialize parameters
Before wiring, initialize the parameters.
On the control card: select the control method; Reset the PID parameter to zero; When the control card is powered on, the enable signal is closed by acquiescence; Save this condition to make sure that the control card ...
|
|
Contact
working hours
