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Delta's inverter failure analysis
1. Fault code:
SE1 parameter replication error
Fault Description:
Keypad replication function error correct
Solution:
Keypad replication action errors, including communication delays, communication errors (Keypad received FF86 errors), and parameter value errors
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Inverter environmental installation requirements and methods - Delta inverter
1. The environmental requirements of the inverter
Ambient temperature - 10 °C - 40 °C;
Ambient humidity: The relative humidity does not exceed 90% (no condensation);
Other occasions that require no direct sunlight, no corrosive gas and flammable gas, and less dust, with an altitude of less than 1000m.
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Characteristics of common models of Delta inverters
Delta MS300 Inverter Series: Delta's compact standard vector-operated inverter MS300 combines the advantages of miniaturization, high functionality, high trust, and simple installation, transforming every investment in industrial resources into abundant results. Optimized structure with lock-free screw terminals to plan the supply of bento ...
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The frequency of the inverter is given in a given way - Delta
The main way to use the inverter is to change the output frequency to achieve the controllability of the motor speed, so do you know what steps are required to complete the output frequency controllability? One of the main points is how to complete the change of the frequency signal supplied by the inverter equipment.
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Inverter Fault Repair Test Method - Delta
Static quizzes
1. Test the rectifier circuit
Find the P and N ends of the DC power supply inside the inverter, adjust the multimeter to the resistance X10 gear, connect the red watch rod to P, and separate the black watch rod to R, S, T. Instead, connect the black watch rod to the P...
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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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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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What are the problems of the inverter if it is not used for a long time - Delta
Most inverter brand products can rely on the heat of internal electrical components to remove moisture during normal use. If you don't use it for a long time, it's easy to get wet. The chip pins, penetrating resistors, capacitors, and inductor pins of the DIP package will be severely rusted or desoldered, resulting in on-resistance ...
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Analysis of abnormal operation of Delta inverter
There are many setting parameters of the inverter, each parameter has a certain selection range, and the phenomenon that the inverter can not operate normally is often encountered in the application due to the improper setting of a single parameter, so the relevant parameters must be set correctly.
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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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Delta's LOYTECIoT building management platform helps Yili Group reduce costs
Intelligent houses are selected with fully automatic automatic control systems to consider the diverse requirements of community owners, managers and users in housing management methods. In the new project of Yili Group's Food Science R&D Trend Management Center, under the framework of opening to the outside world, Damei has made use of Loytec ...
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Precautions for cleaning dust in the inverter - Delta
1. Each VFD should be cleaned and protected once a quarter. Protecting and cleaning equipment must have specific records and the signature of the person in charge. As long as the management is in place, the task can be completed with quality and quantity;
2. Before cleaning, the power supply must be blocked, and the voltage must be reduced to a safe voltage before starting to work.
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Common problems of VFD control motors - Delta
Question 1. Why use a VFD to control the motor?
Speaking of this question, let's first take a brief look at these two devices. The motor is a rational load, which hinders the change of current, and a large change in current will occur when it is started. VFD, which is actually made up of a rectifier inverter circuit, ...
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Delta's DTK series thermostat product model
DTK4848C01 High brightness LCD display, 48*48, Pt resistor/thermocouple input, 4-20mA output, 1 alarm
DTK4848R01 High brightness LCD display, 48*48, Pt resistor/thermocouple input, relay output, 1 alarm
DTK4848V01 Highlight ...
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The specific operation method of Delta inverter
(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 working at low speed, due to the low speed of the motor blades, the temperature rise of the motor becomes high.
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Solution to Delta's overload trip fault
1. The main reason for VFD overload
(1) Mechanical overload. The main characteristic of overload is the heating of the motor, which can be detected by reading the operating current on the display.
(2) The three-phase voltage imbalance leads to excessive running current in a certain phase, resulting in overload tripping. It is characterized by uneven heating of the motor ...
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The principle, composition and function of Delta's inverter
1. What is a Delta inverter?
Delta 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.
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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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Routine maintenance of Delta UPS power supply equipment
The inspection personnel should record the operation status, voltage and current values of the UPS every day, and deal with the problems in a timely manner.
Check whether the traffic lights are working properly;
Keep the outside of the battery clean;
Check the operating status of the battery pack ...
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Basic parameter setting of special inverter for wind turbine - Delta
1. Control mode:
i.e. speed control, torque control, PID control or other methods. After the control method is adopted, static or dynamic identification should generally be carried out according to the control accuracy.
2. Minimum operating frequency:
That is, the minimum speed of the motor. When the motor is working at low speed, the ...
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