1. According to the requirements of the device parts, the method and the maintenance function are required, and the type of motor maintainer and its various maintenance action parameter settings are reasonably selected;
2. According to the requirements of the product instruction manual, the correct device should be connected correctly according to the purpose of each terminal, and the working power supply should be connected in front of the control loop, and pay attention to the nominal voltage and the practical voltage;
3. When the motor maintainer is equipped with a current conversion ratio transformer, if the equipment needs to be displayed by an ammeter on site or in the control room, it is best to have another current transformer, otherwise it will have an impact on the current display of the phase with the ammeter;
4. Do not use different numbers of supporting transformers and display parts together for the device split maintainer;
5. It can be improved according to user requirements, and the analog output of 4-20 mA interface should be matched with the connection equipment;
6. When the low-voltage system is TN-C maintenance system, it is necessary to change the grounding maintenance line of the equipment on the load side of the maintainer to independent maintenance grounding according to the TT system, and the neutral wire shall not be repeatedly grounded and shall not be used as a maintenance line.
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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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Inverter Troubleshooting Skills - Delta
(1) The inverter drives the motor to jitter
When repairing an Yaskawa 616PC5-5.5kW inverter, the customer indicated that the motor was shaking when sending it for repair, and the output voltage was unbalanced. After checking the power equipment, it was found that there was no damage, the inverter was energized and the display was normal, the inverter was operated, and the measurement ...
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How to choose Delta's servo motor
When selecting a Delta servo motor, in principle, the selection should be based on the load conditions. There are two types of loads on the motor shaft, namely damping torque and inertial load. Both loads should be calculated correctly and their values should meet the following criteria:
1) When the machine is running with no load, in the whole speed range, Delta ...
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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:
1) Open IPOO ...
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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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Introduction of incoming reactor for inverter - Delta
Reactors are also called inductors, and when a conductor is energized, a magnetic field will be generated in a certain space scale occupied by it, so all electrical conductors that can carry current have inductance in a general sense. However, the inductance of the energized long straight conductor is small, and the magnetic field generated is not strong, so the actual reactor is conductive.
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Introduction to the features of Delta's power modules
1) Brief planning. Only one battery module, paired with several discrete components, is able to obtain a battery.
2) Shorten the development cycle. It is generally equipped with a variety of input, output, and battery module options. Users are also able to repeat or cross-stack, combined with modular batteries, to complete multi-channel ...
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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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Problems in the inverter application – Delta inverters
1. Harmonic problems
The equipment that plays the role of switching in the main circuit of the inverter must generate harmonics in the process of turning on and off the circuit. The lower harmonics generally have a greater impact on the motor load and cause torque ripple; The higher harmonics increase the leakage current of the inverter's output cable, making ...
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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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The inverter reported the cause of the grounding fault - Delta
Regarding the grounding problem, it can generally be swept away after the following steps (because most of the inverters are not easy to detect the current measurement of Hall components, it is very important to sweep the grounding caused by external conditions, and alternative methods can be selected if there are conditions, and it is still an external problem to change a normal load to see whether it is a problem of frequency conversion or an external problem ...
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Set the parameters when reading and uploading the Delta PLC program
Open Delta's programming software, and use WPLSOFT to do the demo here;
First, click on the settings and then click on the communication settings in the settings, select the communication mode, communication port, communication baud rate, communication station number, etc.
After the setting is finished, click OK to automatically close the pop-up window.
In the dish ...
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Introduction to Constant Power and Constant Torque in Frequency Conversion Speed Regulation - Delta
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Delta's PLC-Based motion controller AX3 series
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Do Delta thermostats have a "slope control" function?
Delta's thermostats are only available in the DTE series (variety 1.5 and above) with the "slope control" function.
Illustrate the following examples:
For example: PV=20°C, SV=100°C, slope 10.0°C/min
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Delta's inverter composition and function
Delta inverter is a device that converts the power supply (50Hz or 60Hz) into a communication power supply of various frequencies to complete 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, and the output input of the DC center circuit to the rectifier circuit is ...
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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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The cause of short circuit in power transformer - Delta
Power transformers are used very frequently in daily livelihoods, in order to ensure the normal use of electricity, the safety and stability of the power transformer is the key point, once the transformer has a problem of prevention, it is necessary to quickly find out the cause and deal with it, take the transformer short circuit as an example, the damage caused by the insufficient treatment is ...
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Composition and function of Delta inverter
Delta inverter is a device that converts the power supply (50Hz or 60Hz) into AC power supply of various frequencies to realize the variable speed operation of the motor.
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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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