1. Acceleration and deceleration time
The acceleration and deceleration time is usually confirmed by the rise and fall of the frequency setting signal. In the commissioning of Delta inverters, it is often used to set a long acceleration and deceleration time according to the load and experience value, and the frequency rise rate of the motor must be constrained when it accelerates to avoid overcurrent. When decelerating, the rate of decline is constrained to avoid overvoltage. Repeat the operation a few times, and you can confirm the best acceleration and deceleration time.
2. Electronic thermal overload maintenance
This function is set to maintain the overheating of the motor, and it is a cost-effective Delta inverter that calculates the temperature rise of the motor according to the operating current value and frequency, so as to carry out overheating maintenance. This function is only applicable to the occasion of "one to one", and in the case of "one to many", thermal relays should be installed on each motor.
3. Frequency constraints
That is, the upper and lower amplitudes of the output frequency of Delta's inverter. Frequency restriction is a maintenance function to prevent damage to the equipment in order to avoid misoperation or failure of the external frequency setting signal source, which causes the output frequency to be too high or too low. This function can also be used as a speed limit, in order to reduce mechanical wear, the upper limit frequency of the Delta inverter can be set to a certain frequency value, so that the belt conveyor can run at a fixed, low operating speed.
4. Electromechanical resonance
By setting the frequency jump value, you can avoid the resonance point. Generally, Delta's inverters are equipped with a frequency hopping function, which allows the user to set the hopping point and width according to the frequency of the oscillation of the system. In this way, when the motor is accelerated, it can automatically cross these frequency bands, allowing the operating system of Delta's inverter to operate normally.
Through debugging, Delta's inverters will generally reach a state of saving power consumption during normal operation. There are many functional parameters of Delta inverters, and most machines only need to use the set values of Delta inverter manufacturers. However, some parameters have a lot to do with the actual application, and some are also related to each other, so they should be set and debugged according to the actual situation.
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Common problems with compact pressure transmitters – Delta
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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Important parameters of Delta inverters
The inverter is the pioneering work of Delta Automation, and it is also the largest selling product of Delta Automation. In the highly competitive market, Delta inverters have always maintained a strong growth momentum and made great achievements in the high-end product market and the economic product market. Delta continues to launch high-end products ...
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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.
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Delta servo system composition
The servo system is mainly composed of a servo controller, a drive circuit, a servo motor and the corresponding reaction testing equipment.
(1) Servo motor
Servo motor refers to the motor that controls the mechanical components in the servo system, and the servo motor has an encoder inside, which can respond to the movement in real time.
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Delta's A2 server maintenance location controller is faulty
Delta's A2 series servo system is one of the more common and used servers on the market today, and the following describes the fault details of the azimuth controller in the repair of Delta's A2 servo drive and the corresponding repair methods
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The basic control loop of Delta's inverter
There are two fundamental circuits for communicating with external signals: analog and digital:
1. 4-20mA current signal loop (imitation); 1 - 5V/0 - 5V voltage signal loop (imitation).
2. Switch signal circuit, inverter start and stop command, forward rotation command, etc.
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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:
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The energy-saving principle of inverter - Delta
In order to ensure the reliability of production, all kinds of production machinery are designed with power drive, and there is a certain surplus when designing and matching power drive. When the motor cannot operate at full load, in addition to reaching the power drive requirements, the residual torque increases ...
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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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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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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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Troubleshooting of small electromagnetic relay cores - Delta
The main problems of the iron core of the small electromagnetic relay are that the armature cannot be sucked after being electrified:
This may be due to broken coils, foreign matter between the moving and static cores, and low power supply voltage. It should be patched on a case-by-case basis.
When energized, the armature is noisy:
This may be because of the ...
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How Delta's touch screen works
Delta's touch screen consists of a contact detection component and a touch screen controller.
The contact detection component is installed in front of the display screen to detect the user's contact orientation and is sent back to the touch screen controller; And Delta's touch screen controller's ...
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Solution: Delta's inverter operation error
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 a single parameter is often encountered in the application, therefore, the relevant parameters must be set correctly.
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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.
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Selection of inverter box structure - Delta
The box structure of the inverter should be adapted to the environmental conditions, that is, the temperature, humidity, dust, pH, corrosive gas and other elements must be considered. There are several common types of structures that users can choose from:
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Detection methods for Delta circuit breakers, AC contactors and frequency converters
1. Circuit breaker
A circuit breaker is a device that can be manually or automatically controlled, and is used to control the on/off of the system power supply in the equipment circuit system. When there is a suspicion that there is a defect in the electrical system of the equipment, the primary functional part of the power supply should be checked.
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How to use Delta's inverter operation
(1) When the speed of the motor is controlled by the Delta inverter, the noise and temperature rise of the motor are higher than that of the frequency of the motor. When the motor is running at low speed, because the speed of the motor blades is low, the temperature rise of the motor becomes high.
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Delta's inverter method to reduce the failure rate
Daily inspection item 1 of Delta's inverter problem repair:
Check whether there are any abnormal changes in the sound of the motor during operation, including whether there is vibration during the operation of the motor.
Routine inspection item 2 of Delta inverter problem repair:
Check out the inverter installation environment is ...
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Inverter technology is a motor control method – Delta
When you are using the motor, if you simply change the frequency, your motor will most likely be burned out. This problem is especially acute when the frequency is reduced. In order to prevent the motor from burning out, the inverter must change the voltage at the same time as the frequency.
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