1. What is a Delta inverter?
Delta's inverter is a device that converts the power supply (50Hz or 60Hz) into a communication power supply of various frequencies to realize the variable speed operation of the motor, in which the control circuit completes the control of the main circuit, the rectifier circuit converts the communication power into direct current, the DC intermediate circuit filters the output of the rectifier circuit smoothly, and the inverter circuit reverses the direct current into communication electricity.
In addition to speed regulation and soft start effect, the most important thing is to be able to save energy.
2. The composition of Delta's inverter
The inverter is usually divided into 4 parts: the rectifier unit, the high-capacity capacitor, the inverter, and the controller.
Rectifier unit: converts the communication power with a fixed working frequency into direct current.
High Capacitance: Stores converted electrical energy.
Inverter: An electronic switch composed of an array of high-power switching transistors, which converts direct current into square waves of different frequencies, widths, and fluctuations.
Controller: Work according to the set program, control the fluctuation and pulse width of the output square wave, make the communication electricity superimposed as an approximate sine wave, and drive the communication motor.
Third, the function effect of the inverter
The energy saving of the inverter is mainly manifested in the application of fans and pumps. In order to ensure the reliability of production, all kinds of production machinery are designed with power drive, there is a certain amount of surplus. When the motor cannot run at full load, in addition to meeting the requirements of power drive, the excess torque increases the consumption of active power, resulting in the waste of electric energy. The traditional speed regulation method of fans, pumps and other equipment is to adjust the air supply and water supply by adjusting the baffle plate and valve opening of the inlet or outlet, and the input power is large, and a large amount of energy is consumed in the interception process of the baffle and valve. When using frequency conversion speed regulation, if the flow requirement is reduced, the speed of the pump or fan can be reduced to meet the requirements.
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Precautions for long-term idle use of Delta inverter
If the inverter is to run the equipment again after being shelved for more than half a year, the probability of damage may be greatly increased due to many factors such as the placement environment, the service life of the inverter, and the load rate, and the failure usually presents the following problems:
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Delta's inverter and output reactor function
input/output reactor for frequency conversion speed regulation; Because the inverter is often affected by 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 it is necessary to install a transmission system in front of it.
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Problems with Delta's compact pressure transmitters
1. The transmitter does not return to zero under no pressure?
Answer: The cleaning method is to remove the transmitter from the device position, investigate whether the zero position is normal, and replace the pipeline sealing ring if it is normal. Check together whether the transmitter is perpendicular to the piping assembly, and if not, adjust the transmitter zero.
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Analysis of common faults of Delta servo motors
1. The shaft current of the motor is generated
The current in the shaft-housing-base circuit of the motor is called the shaft current.
Causes of shaft current:
1) Magnetic field asymmetry;
2) There is a wave in the supply current;
3 ...
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How to wire the internal control and external control of Delta inverter
How to wire the internal control and external control of Delta's inverter?
Internal control: connect the main circuit power supply RST motor UVW, press the inverter panel to start and stop. Both the command source and the frequency frequency should be selected in the panel.
External ...
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Analysis of the power-on trip problem of Delta inverter
In life and production, leakage switches are often used. But the inverter is not used much at some times. Most manufacturers often use leakage switches as the main switch when installing switches in the workshop. When the frequency conversion control is elected, the problem comes out, and the leakage switch is always tripped after a little moment...
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Delta's B2 series servo motor parameter setting
Automatic:
P0-02 Drive Status Display Parameter Function: 07Motor Speed (r/min)
P1-01 Control form and control command input source setting parameter function: 02 Select S form (r/min)
P1-38: Zero speed detection accuracy (no response below set speed)
P1-4 ...
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Delta inverter fault alarm code and solution
The OCC AC motor driver detects an unusual overcurrent surge on the output side
See if the motor extra matches the communication motor drive extra
Check whether there is a short circuit between the communication motor driver U-V-W
View...
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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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Delta's Smart series of micro-modules help transform high-speed tunnel networks
Recently, Delta's Smart series of micro-modular data center processing solutions successfully assisted the smooth implementation of a provincial tunnel network transformation project in a province. The project has set up a series of safety operation networks such as video, lights, signals, networks, rescues, and alarms for the safe operation of key roads in the province.
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The reason why the circuit breakers of multiple stages trip together is Delta
Short-circuit maintenance (overload maintenance) is an important function of circuit breakers, and the reason why this function is achieved is that the circuit breaker senses the temperature in the circuit through a thermal iron plate. Once the temperature in the circuit is too high, it is transmitted to the mechanical mechanism in the circuit breaker for trip maintenance.
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A brief introduction to Delta's inverters and their models
Delta's VFD drives have now established a wide range of brand awareness in the industrial automation market. Each series of products is designed for different operation needs such as torque, loss, overload, overspeed work, etc., and is adjusted according to different industrial machinery attributes; It can provide customers with a variety of choices, and a wide range of ...
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Pulse control wiring method for Delta servo drives
Parameter settings
P1-XX are the basic parameters
P1-00 pulse method selection, *** bit selection is 2, that is, pulse train + direction
P1-00 signal logic picking, the third digit is selected as 0 or 1, which is the positive logic or anti-logic, X0XX or X1XX
P1-01 Control form selection, pick ...
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Delta's inverter model selection
1. VFD-B series
This series has a variety of communication voltage standard model options, in addition to providing a variety of I/O signal functions, and can supply the appropriate current and voltage vector value according to the external load torque, to meet the needs of customers with high quality and low price.
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Delta NT series UPS industrial power supply
Delta's NT series UPS is a high-power UPS carefully discussed by experts for large-scale users, and a number of advanced skills have been selected, which can be used for various data processing systems, telecommunications systems, satellite systems, network systems, medical equipment, safety and emergency escape equipment, monitoring and security systems, and various industrial systems.
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Installation steps of the reducer - Delta
Correct installation, operation and maintenance of the reducer is an important part of ensuring the normal operation of mechanical equipment. Therefore, when you install a planetary reducer, it is necessary to carefully assemble and operate it in strict accordance with the following matters related to the operation of the device.
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The basic methods and steps of inverter debugging - Delta inverter
1. No-load energizing test of inverter
1. Ground the grounding terminal of the inverter.
2. Connect the power input terminal of the inverter to the power supply through the leakage maintenance switch.
3. Check whether the factory display window of the inverter is normal, if it is incorrect, it should be reset, no ...
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Solution to Delta inverter fault CE1 and CE2
Product range:
CP/CH/CT/C2000/C200/MS300/MH300/VE/ED/VJ
Problem Code:
CE1
Problem Description:
Communication is abnormal
Solution:
1. Communication error: RS-485 Modbus function code may be faulty
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Delta inverter failure and maintenance
Delta's inverter problem 1: Communicate with the motor driver to explore the formation of overvoltage conditions on the internal DC high-voltage power supply side
Check whether the keyed operating voltage is in the field of the additional value of the communication motor driver keying operating voltage, and detect whether there is a surge operating voltage formation
If it is due to ...
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New and old models of Delta drives
Delta's VFD series of inverters has established a wide brand awareness in the industrial automation market. Each series of products is designed for different operation needs such as torque, loss, overload, overspeed work, etc., and is adjusted according to different industrial machinery attributes; It can provide customers with the most diversified choices ...
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