Inverter cabinet is an industrial control equipment that can be widely used in fire fighting, daily constant pressure water supply and drainage, agricultural sprinkler irrigation pipe network pressurization, urban music fountain active water supply control, HVAC cold and hot water circulation control and other occasions. In addition, it also has a variety of maintenance functions such as: short circuit, overload, phase loss, undercurrent, underpressure, pump leakage.
In addition to the maintenance functions such as motor leakage, what are the other effects when in use?
1. It can help to actively adjust the speed of the motor.
2. The flow can be actively controlled according to the demand.
3. It can manipulate the input of temperature, voltage, current and resistance.
4. It is capable of manipulating and converting multiple devices.
5. The motor can be started smoothly, which greatly reduces the damage to the motor caused by the large current that occurs when the direct start occurs.
6. The power frequency can be switched. When the inverter fails, the equipment can be switched to the power supply through the active control circuit.
7. A touch screen is installed on the cabinet, which can intuitively display the parameters and operation status of the equipment, and facilitate users and operators to better control the equipment.
8. It can carry out network communication, complete the long-distance active control of the equipment, and break the geographical constraints.
Features of inverter cabinet:
Improved pressure control: In the inverter control system, the pressure output of the motor will change according to the user's needs, and the output of the motor will change according to the speed of the motor. Because the speed of the motor is high, the change of network management pressure will be kept within a certain range, which greatly improves the pressure.
Energy saving: Compared with traditional equipment, the energy saving effect is significant. It can actively adjust the output power according to demand, reducing some unnecessary waste and energy consumption.
High degree of automation: the use of man-machine interface touch screen, which helps to complete the active long-distance control of the equipment, the technology is mature and stable, and the unattended equipment is completed, with a high degree of automation and convenient operation.
Perfect maintenance function: It has a perfect self-diagnosis function, which can alarm in time when there is a problem with the equipment, facilitate the operator to solve the problem, and ensure the normal operation of the equipment.
Extend the service life of the equipment: it can reduce the impact of the large current on the motor and mechanical parts when starting, and can also reduce the peak value of the starting current, reduce the fluctuation of the current, and prolong the service life of the whole equipment.
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Problems in the use of Delta inverters and Delta motors
Delta's motors are the most frequently used rotating things so far, and with the development and spread of Delta inverters, they need to be used in conjunction with inverters.
However, in the process of combining inverters and motors, it is inevitable to encounter a lot of ...
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Precautions for summer maintenance and maintenance of inverters - Delta
1. Check the operating status of the inverter, whether the voltage and current value during operation are within the normal range.
2. Carefully monitor and record the ambient temperature of the frequency conversion room, and the ambient temperature is generally between -10 °C and 40 °C. The temperature rise of the phase-shifting transformer should not exceed 130°C.
3. Avoid ...
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Analysis of communication problems of Delta inverters
Problem Clarification:
Communication Transmission Timeout: The Modbus transmission between the VFD and the Keypad times out
Solution:
VFD does not respond to Keypad's communication commands.
1. Confirm the communication quality of the communication wiring and contacts.
2. Please use the RESET key to clear the Fault ...
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Precautions before installation of Delta inverters
Delta's inverter should be thoroughly inspected for initial installation or long-term use. The items and methods to check 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 dry for 4 hours (60°C) or in ...
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Precautions for the use of transformer DC resistance tester - Delta
The transformer DC resistance tester uses the 32-bit ARM core as the processing center to control the whole machine, actively complete the functions of self-calibration, current stabilization judgment, data processing, resistance value display, etc., and can measure the DC resistance of various types of transformers and transformers.
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Delta's various PLC series
At present, Delta PLC has ES, EX, EH2, PM, SA, SC, SS, SX, SV and other series. Each series of models has its own characteristics to meet different control requirements.
The ES series is cost-effective and can be controlled sequentially.
EX ...
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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 MH300 series technical specifications
Outstanding drive characteristics
The overload capacity is up to 150% / 60 seconds, 200% / 3 seconds, suitable for constant torque, variable torque, constant power and other loads
Support induction motor, permanent magnet synchronous motor, optional PG card for high ...
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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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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 M series inverter communication parameter address problem
In Delta's M series inverters, the parameter address 2000H corresponds to abort, start, JOG, and forward, rotation, and change direction. Why is "aborted" at the time of writing the program H01, "start" is H10, "forward" is H12, and "rotation" is H22.
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The cause of the damage of the inverter - Delta inverter
First, the heat dissipation of the inverter is not good
In fact, we all know that too high a temperature has a damaging effect on any equipment, just like a human brain, too high a temperature will also burn out the brain, in fact, the same is true for inverters. When the temperature rises, because of the sensitivity of semiconductors to temperature, the inverter ...
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Advantages of Delta inverters
1. Control the starting current of the motor: when the motor is directly started through the I frequency, it will generate 7 to 8 times the rated current of the motor, and this current value will greatly increase the electrical stress of the motor winding and generate heat, thereby reducing the life of the motor. The acid frequency speed regulation can be started at zero speed and zero voltage (can also be ...
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Introduction and features of Delta PLC
Delta's programmable controllers, also known as Delta programmables, delta programmable controllers, delta programmable controllers, etc., are electronic devices specially designed by Delta for the industrial automation category to complete digital operations. Delta's PLC uses programmable memory to store execution logic inside it.
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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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Debugging Delta's inverter method
In order to ensure the reliability of production, when Delta's inverter is planned to be equipped with power drive, in addition to meeting the power drive requirements, the remaining torque increases the consumption of active power. When using cost-effective Delta inverters to regulate the speed, if the flow requirements are reduced, by reducing the rotation of the pump or fan...
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Delta has always been the shipment champion in Taiwan's inverter market
Based on trend forces, the sales market of solar power generation in Taiwan was analyzed. In the first half of 2019, AUO ranked second, while third-ranked Canada Solar entered the top three for the first time.
Compared with the previous year, the sales market in Taiwan, China in the first half of 2019 was in the total delivery of common decoration ...
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Delta-B series inverter inverter output module is damaged and the drive circuit is damaged
Delta-B series inverter inverter output module is damaged and the drive circuit is seriously damaged: the drive integrated circuit T250V or burst, or the output terminal and the power supply ground are short-circuited, the filter capacitor is sprayed, the regulator tube is broken down or open, the resistance is open or the resistance value increases, and the circuit board carbonization is damaged.
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Delta's PLC-Based motion controller AX3 series
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TIMTOS x TMTS 2022 - Delta's Exhibit Highlights
Intelligent machining solution plan
Intelligent machinery is an important step towards intelligent manufacturing, in order to help manufacturers improve productivity or complete a few diverse forms of production, Delta will exhibit the intelligent processing solution plan at TIMTOS x TMTS 2022, which will be used to communicate with industrial-grade managed Ethernet networking.
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