With the continuous progress of industrial automation, the inverter has also been widely used, energy conservation and environmental protection as the center of China's industrial economic development, in the direction of the sustainable development of China's industry, but also in the effective promotion of the sustainable development of China's inverter industry, so that China's inverter profession continues to broaden the market share of the industry, and with the weak development force has become an important basis for the development of China's industrial economy.
Frequency conversion and energy saving are mainly used in the occasions where the demand is to communicate the speed change of the motor, change the driving mechanical characteristics and then reach the requirements of the production process, and is more used in fans and pumps. While the motor can only work at an additional speed, its drive machinery can only work at a certain additional speed.
1. Speed regulation of general motor:
By changing the input voltage and frequency of the three-phase asynchronous motor, its speed can be controlled. Generally, when the motor is at low speed, the temperature rise becomes larger due to the decrease in the power of the cooling fan, and the motor load should be reduced according to the frequency.
2. High-speed work can be carried out:
Generally, the frequency of the power supply is 50Hz, which is fixed. The output frequency of the inverter can reach up to 650Hz (EH600A series). The EH600H series can reach a maximum output frequency of 1500Hz.
General-purpose motors cannot achieve high speed only by improving the frequency, and the mechanical strength must also be considered. When the carrier frequency of the inverter is high at high speed, the inverter must be degraded.
3. Soft start and soft stop:
The acceleration and deceleration time of the inverter can be set arbitrarily between 0.1 and 6500.0 seconds. When working, the inverter needs to set an appropriate acceleration and deceleration time.
4. Fast and accurate start and stop:
The starting current is small, and the motor heats up small. The capacity determines the acceleration and deceleration time, and the capacity level of the motor and inverter should be improved, and the proportional relationship between the acceleration and deceleration time and the load should be adjusted.
5. Forward and reverse rotation can be easily completed:
Since the IGBT performs the steering switching, the loss of the original contactor disappears, and reliable interlocking work can be carried out. When used for lifts, it is necessary to use a motor with a hugging brake, and there should be a mechanical organization to maintain the steering when changing the steering.
6. Electric braking:
Because the mechanical energy can be converted into electrical energy in the inverter during deceleration, the motor will actively brake. DC braking is applied to the motor at zero speed, and the motor can be stopped quickly. The inverter has only 20% of the braking force. When braking force needs to be added, an external braking unit and braking resistor are required. Inverters with built-in braking units only need an external braking resistor.
7. Motor speed regulation in harsh environments:
Because three-phase asynchronous motors can be used, explosion-proof, submersible or specially shaped motors can be easily selected. The explosion-proof motor should be matched with the inverter for explosion-proof test identification. The general-purpose inverters produced by our company are not explosion-proof.
8. One inverter can regulate the speed of multiple motors:
The inverter can adjust the speed of multiple motors together. The additional current of the inverter should be greater than 1.1 times of the total current of the motor. At the same frequency, the speed will be different due to the different characteristics and loads of the asynchronous motor. Together, each motor should be heated with an overload relay to protect the motor.
9. The power supply capacity of the motor should not be too large:
Unlike the power frequency power supply, which has a large starting current (5-6 times the additional current of the motor), the maximum additional current of the motor is not more than 100-150% when the variable frequency power supply is started.
|
More on that
|
The difference between Delixi single-phase and three-phase AC voltage regulators
Delixi's communication regulator is divided into single-phase communication regulator and three-phase communication regulator. Among them, the types of single-phase communication regulators are mainly TND, TND3, AVR, JJW-D, DBW and other types; The types of three-phase communication regulators are mainly SJW, JJW-S, SBW and so on.
...
|
|
Parameters of Delixi inverter speed controller
(1) Gain Parameter: The share gain of the speed manipulator. If the gain is too large, it may cause the speed to fluctuate.
(2) Integration time parameter: the integration time of the velocity manipulator, that is, the deviation step signal ...
|
|
Hu Chengzhong, director of Delixi, suggested five major suggestions to optimize science and technology to benefit people's livelihood
Founded in 1984, Delixi Group started with thermal relays, 36 years of big waves, has been in the first camp of China's electrical industry for many years, and has been ranked among the top 500 Chinese enterprises for 18 consecutive years. In recent years, under the guidance of the strategy of "manufacturing power", Delixi has focused on the main line of high-end manufacturing, and has taken multiple measures to ...
|
|
Delixi responds to the national strategy to enter the field of high-end production
Electrical manufacturing is the main business and the old bank of Delixi, in recent years, the group has vigorously implemented the high-quality transformation and development strategy, and has always adhered to the intelligent manufacturing as a new engine to enhance the benefits per mu, with the construction of intelligent factories as the carrier, with the key manufacturing links as the core, and constantly increase scientific research ...
|
|
After 12 years of political participation, Hu Chengzhong said frankly that he is most concerned about the livelihood of private enterprises
Since 2003, when he was first elected to the National People's Congress Committee, Hu Chengzhong, the current chairman of the executive president of Delixi Group, was re-elected as the National People's Congress Committee for two consecutive terms, and in 2018, he was once again elected as a representative of the people from all over the country.
|
|
General parameter setting skills of inverter - Delixi inverter
1. Upper frequency (high speed) SEt - HSP and lower limit frequency (low speed) SEt - LSP
The upper frequency is the frequency corresponding to the *** large given, and the lower frequency is the frequency corresponding to the *** small given. The upper and lower limit frequencies are set to limit the speed of the motor, so as to satisfy the design.
|
|
How about Delixi switch?
Delixi focuses on the development of green energy-saving industry, the construction of LED ecological industrial chain. It has established an industrial development format with Shanghai as the research and development center and Hangzhou and Jiaxing as the production base of LED lighting products, specializing in the development, production and sales of LED fluorescent lamps, three-proof lamps, downlights, spotlights, street lamps and other high-tech products.
|
|
Delixi CDI-EM60 inverter technical characteristics
Delixi CDI-EM60 inverter has optimized open-loop vector control, V/F control, stable function, optimized function, standard configuration of common users, but also expand multi-channel I/O interface and communication function, is a delicate type of small power type.
...
|
|
Analysis of various models of Delixi circuit breaker
CDB1 miniature circuit breaker is a current-limiting high-breaking miniature circuit breaker with overload and short-circuit two-layer maintenance, which is suitable for communicating 50Hz, additional voltage 400V and below, and additional current 63A and below circuits.
|
|
Delixi won the lawsuit "Delixi United" to defend its rights by legal means
On July 14, the official Weibo of the Beijing Municipal Patent People's Court "Intellectual Property Beijing" released information that Delixi Group Co., Ltd. (hereinafter referred to as "Delixi Group") sued the former administrative department of China's State Administration for Industry and Commerce to dispute the proposal has been adjudicated in the first instance not long ago, and the appellant Delixi ...
|
|
Low dropout linear regulator parameters and advantages and disadvantages - Delixi
Grounding current, also become quiescent current, load regulation (the smaller this value, the stronger the LDO can press the load) linear regulation (the smaller, the less influence of the input voltage on the output voltage, the better the LDO function) power supply ratio (PSSR), reflecting the Delixi LDO to the interference signal ...
|
|
Delixi selects the advantages of the inverter
1. Significant energy-saving effect: up to 20%-45%
2. Optimize electrical equipment: when the motor starts, there is no large current impact, which reduces the load of the transformer
3. Convenient operation: the speed of the motor is directly given according to the size of the air volume, and the accuracy of the air volume is adjusted accurately
...
|
|
Problems in the installation and use of Delixi voltage regulator
What is the voltage regulator can not be connected in parallel, the voltage regulator is not open for a long time, what will be the problem with the voltage regulator still open under normal voltage, is it said that the voltage regulator and the undervoltage lamp is not lit to clarify that the voltage regulator is normal?
Will a normally open regulator burn it out at normal voltage?
...
|
|
Delixi inverter EM60 series model introduction
S1 (Single-phase 110V, 50/60HZ)
CDI-EM60G0R75S1 0.75KW
CDI-EM60G1R5S1 1.5KW
S2 (Single Phase 220V, 50/60HZ)
CDI-EM60G0R4S2 (without built-in brake unit) 0.4KW
CDI-EM60G0R4S2B (Built-in ...
|
|
Delixi occasion to choose the inverter
We need to ensure that the capacity of the inverter is matched. First of all, according to the nature of the load, the correct selection of the type of inverter.
When selecting the inverter, the current value of the actual 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, the output of the inverter should be fully considered ...
|
|
Delixi circuit transformation attention to detail
1. If strong electricity and weak electricity are to be separated by a long distance from the horizon walking line, the interval should generally exceed 30 cm to prevent disturbance and be interspersed with each other.
2. In order to facilitate the future line change, the PVC pipe must be cut down and straightened as much as possible.
|
|
Delixi inverter control motor problem
Question: Delixi inverter control motor contactor does not start when there is no action?
Solution: First check the output status of the controller reflected by the controller panel, and you can compare the 7 units on the panel described in the controller description book.
|
|
Delixi inverter parameter setting method
P0.00: Set to G type (constant torque load type).
P0.01: Set to 1 fundamental efficacy model.
P0.02: Set to 1V/F control.
P0.03: Set to 0 keyboard control.
P0.04: Set to be given by the external terminal for multi-segment commands.
...
|
|
Delixi EM60 series inverter to factory settings
First, the process of inverter rehabilitation factory value
1. Study the manual and find the corresponding function number, or key combination.
2. Confirm that the parameters can be corrected (sometimes the inverter will set the parameter to write the protection function in order to prevent the parameters from being changed randomly, and the password must be guaranteed to enter the correction) ...
|
|
Delixi inverter controller output problem analysis
The output of Delixi inverter controller does not match the operating frequency, and the analog output of the inverter is abnormal?
Solution:
First, you should confirm what hardware is wrong. Make the controller enter the manual debugging state, and use the universal ...
|
|
Contact
working hours
