Inverter is a kind of speed regulation equipment, where there is a place to use motor speed regulation, especially asynchronous motor speed regulation, the inverter will be used, now it is mainly used in industrial equipment on a large scale, because the motor is the heart of the industry, and the three-phase asynchronous motor occupies the vast majority of the share, so the inverter is used more, and with the improvement of the days, the inverter is also used a lot in the days.
1. On the fan, it can be used to control the air volume, such as the boiler blower fan and the workshop fan, the fresh air fan and exhaust fan of the central air conditioner, which can adjust the wind speed according to the incineration status or other needs, and play the effect of controlling the size of the valve for the air supply.
2. Water pump occupation, industrial circulating water, daily inverter constant pressure water supply, sewage treatment, the same reason for the transportation of some chemical liquid raw materials, inverters will also be used, which are also used to control some liquid flow or pressure application. Like fan control, the accuracy of the inverter is not high, and the use of a special fan pump inverter can meet the requirements at a relatively low price.
3. Some transmission fields are used to control the transmission use, such as conveyor belts and transmission rollers, and the transmission speed of the material needs to be controlled to achieve the synchronization effect of the overall production line.
4. Mixing, mixing, grinding, crushing, extrusion, and some calendering occasions, the demand for the equipment to "bite" with each other, so that the material is fully mixed, this processing process also needs to be manipulated, and the need to use the inverter to complete, and the general general type can also meet the requirements.
5. Suspension, winch, rewinding and unwinding and other occasions, the inverter is required to complete the certain synchronization and tension control, and the accuracy requirements are relatively high, and the vector inverter or direct torque control type inverter is required.
6. In occasions such as air conditioning compressors and air compressors, synchronous motors are often used, and the control algorithm is similar to the asynchronous practice, which is also frequency conversion speed regulation, but due to the motor, the power is relatively high.
7. Automobile and motorcycle tram occupations, from trains, to electric vehicles, three-wheeled electric vehicles and two-wheeled battery cars, and transportation vehicles, now have inverters in use.
8. Processing occupations, robots and other occasions, the inverter can be used as a spindle or an important rotary table motor, if the servo is also regarded as a special inverter, each axis is used in it.
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How to use a PC to control Delta's inverter
Problem Description:
How does Delta inverter use a PC to control it?
Solution(s):
The communication interface of Delta's inverter is based on RS485 and the ModBus communication pattern commonly used in the general industry for material handing.
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Delta's PLC programmable controller product list
1. Programmable manipulator AH series
Delta's AH series modular controllers provide automation system solutions for high-end applications. The AH series adopts a comprehensive modular design, and on the basis of Delta's research and development skills, it has developed ...
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How to choose Delta's power supply
1. First of all, calculate the maximum power consumption of the computer
The power consumption of the computer is different in different operating states, such as 95W on startup, 35W on standby, and up to 480W when the game is fully loaded.
The power consumption of the power supply is based on the computer ...
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Delta's PLC-Based motion controller AX3 series
With the development of electronic semiconductor information technology, technologies such as the Internet of Things, big data, and cloud channels are showing a trend of hundreds of schools of thought, which also drives the rapid development of intelligent production. Intelligent production also puts forward new requirements for controllers: high speed, large capacity, miniaturization, networking...... In order to ...
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Advantages and disadvantages of Delta's open-loop and closed-loop control
1. Open-loop control
There is no reverse connection between the controller and the controlled target, and the control is carried out in one direction.
Strengths: Simple, stable and reliable. If the characteristics and parameter values of the components that make up the system are relatively stable, and the external disturbance is small, the open-loop control energy
Enough...
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Delta's inverter energy-saving method
Delta's inverter energy-saving method is mainly manifested in the application of fans, pumps, and hoists. In order to ensure the reliability of production, all kinds of production machinery are designed with power drive, and there is a certain amount of surplus.
Power Factor Supplement ...
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Reduce the failure rate of Delta's inverters
Daily View Item 1:
Check whether the sound of the motor changes abnormally during operation, including whether there is vibration during the operation of the motor.
Project 2:
Check if the environment of the inverter unit has changed. For example, whether the ambient temperature is normal. Familiar with Delta's inverter ...
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Delta's inverter fault warning solution
Product series: CP/CH/CT/C2000/C200/MS300/MH300/VE/ED/VJ
Fault Codes:
noCL
Fault clarification:
The lack of oil is correct
Solution:
1. Check the fuel level of the fuel tank
2. Check whether there is any leakage on the oil road.
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Precautions for Delta inverter C2000 series
1. Precautions for choosing a communication motor driver
When using a large-capacity current transformer (more than 600kVA) and a phase-entering capacitor, the surge current on the input side of the power supply is too large, which may destroy the input side of the communication motor driver.
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Touch screen controls the inverter step – Delta
1. The touch screen is controlled by PLC inverter
1. At present, the general control of the inverter needs to choose PLC to communicate with the inverter, read the information of the inverter, and then the touch screen communicates with the PLC to complete the control of the inverter to start, stop, and monitor the operation of the inverter.
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The inverter sets the characteristic parameters of the motor
1. Parameters to be set for the motor
When the inverter (hereafter referred to as the -VFD) is operating in the "vector control" (F0-03=1) mode, it is highly dependent on accurate motor parameters, which is one of the important differences from the "VF controlled" (F0-03=2) mode. In order for the VFD to have outstanding driving ...
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The importance of harmonic control - Delta inverter
With the rapid development of the electronic and electrical industries, the demand for magnetic materials has promoted the world's huge industrial clusters. In the process of producing magnetic materials, many manufacturers are facing a great dilemma: the production of magnetic materials is mainly controlled by thyristor rectifier furnaces such as bell furnaces and nitrogen rotary furnaces.
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Method for measuring temperature rise during reducer operation - Delta
The thermometer method and resistance method can be used to measure the temperature rise of each part of the reducer.
1) Thermometer method: This is the easiest way to measure the temperature directly, and it is commonly measured by an alcohol thermometer. When measuring, the thermometer can be placed close to the ...
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Precautions for initial installation of Delta inverters
Delta's inverters should be thoroughly inspected for the first time or after long-term installation. The items and methods of inspection are as follows:
1) Check whether the Delta inverter is damaged, whether the metal parts are rusty, and whether there is frost. If there is frost and condensation, it should be dried for 4 hours (60°C) or ...
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Delta's C-series evolution is complete—C2000+ inverter
Those who know more about Delta's automation know that Delta's inverters have two main series: "M300" and "C2000".
"Compact Inverter M300 Series": This series has been introduced many times before, including ...
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Introduction of high-power fan inverter - Delta
High power means increased cost
The use of high-power fan inverter can indeed meet the various production needs of enterprises, but high-power also means an increase in production costs. Because the more power, the more power will be consumed. Assuming that a 20KW fan inverter can ...
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Analysis of inverter application problems - Delta
1. Dealing with harmonic problems
The treatment of harmonic problems is to block the propagation path of the disturbance and press the higher harmonics on the source of the disturbance.
Interception of the transmission of disturbances can be carried out in the following ways:
1) Intercept the common grounding wire, propagation and disturbance path, the grounding of the power line and the grounding of the control line ...
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Delta's servo drive ASDA-B2-F motion control alarm
Abnormal alarm indication Abnormal alarm title Abnormal alarm action content Sweeping method Indicate DO servo status Switch
AL111 DMCNET Packet Receive Overfill Rx Buffer Overfill (more than two DMCNET packets received within 1 millisecond) ALM ON
AL185 DMCNET Bus Hardware ...
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Cause of Servo Motor Failure – Delta
1. The motor is broken shaft
1. The cause of the problem
(1) Unreasonable mechanical design leads to excessive radial load force;
(2) The load end is stuck or severely overloaded;
(3) The motor and reducer are not centered when installed.
2. Eliminate problems
(1) Check the ...
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Delta's key steps in inverter maintenance
First, the maintenance of the inverter must first check whether the sound in the operation of the motor has changed abnormally, including, whether the motor is in operation to form a sensation.
2. Check whether the natural environment of the inverter installation has changed. For example, whether the operating temperature is normal. Learn more about Delta's inverter ...
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