Introduction to Delta's PLC maintenance knowledge

1. Before the inverter is energized The temperature and humidity of the surrounding environment should be detected first. Too high a temperature will cause the inverter to overheat the alarm. When severe, it will directly lead to damage to the power supply device of the inverter and short circuit of the circuit; Excessive humidity of the air can lead to a direct short circuit inside the inverter. When the inverter is in operation ...

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 ...

All electronic equipment (including frequency converters) will generate some high-frequency or low-frequency noise during normal operation, and disturb the peripheral equipment through conduction or radiation. If the right EMC filter can be configured and the correct device method can be used, the disturbance can be reduced to a minimum. ...

I. Introduction Some devices will have many transmission organizations, and it is impossible for the transmission organization to achieve 100% speed synchronization, so it is necessary to introduce ------ The final motor speed of the pendulum roller is *** := main speed + (+-auxiliary correction change) Use the site ...

(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.

Delta's RH series switching power supply, RH series switching power supply is a high-quality power supply product series planned by Delta Power for industrial applications, with the characteristics of high rate, high reliability and high function. This series of products has a wide range of input voltages and can be applied to a variety of power input ...

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.

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. ...

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 ...

1. Use a vacuum cleaner with a plastic nozzle to completely clean the inside and outside of the inverter cabinet to ensure that there is no excessive dust around the equipment. 2. Check the ventilation and lighting of the inverter room, and the ventilation equipment can work normally. 3. Check the inverter ...

Delixi Electric's newly launched CDQ1F series PC-level excitation active transfer switch, with more complete specifications and stronger functions, the power-off time can be shortened to less than 0.1s, escorting the continuous use of electricity in important places! CDQ1F Active ...

There are many models of Delta's power supplies, and the currents and functions supported are also different, so how to choose? 　　VX Series Power Supplies. VX270: Active PFC270w, but 12v is still small and can only be used at low power. Active PFC and 12v output up to 276w at 300...

Inverter is a high-tech product, mainly composed of power electronic equipment and microelectronic equipment. The three-phase communication grid is connected to the input of the frequency converter. The input end of the inverter is a rectifier circuit, and the output end is a frequency conversion circuit. As a result, the voltages and currents on the input and output sides include abundant ...

1. The inverter must be selected correctly. 2. Read the product manual carefully, and wiring, device and application in accordance with the requirements of the manual. 3. The inverter device should be firmly grounded to suppress radio frequency disturbance and avoid electric shock caused by leakage of the inverter. 4、 ...

First, the maintenance of the inverter must first check whether the sound in the operation of the motor is abnormal, including, whether the motor is in operation to form a sensation. ​ 2. Check whether the natural environment of the inverter installation has changed. ...

The popularity of frequency converters has brought significant energy savings to industrial applications. However, the high-frequency switching signal generated by the inverter is easy to cause electromagnetic interference and affect the power quality. Especially in industries with large loads such as lifting and elevators, it is becoming more and more obvious. ...

The ways to reduce the soft fault of the inverter are: 1. Detect the overvoltage and undervoltage of the inverter; 2. Detecting overcurrent is the most frequent phenomenon of frequency conversion alarm. Generally, the overvoltage alarm is generally presented at the time of shutdown, and the primary reason is that the deceleration time is too short or the braking resistance and braking unit have ...

Delta's new generation of compact and efficient vector-controlled inverter MH300, adhering to the good driving function of Delta's inverter, has six advantages: compact size, flexible application, stable system, reliable quality, and easy installation.

From May 23 to 25, 2019, the Delta Power Electronics Technology Application Seminar, hosted by Delta Group of Zhejiang University, was held at the KONE Hotel in Wujiang, Jiangsu. Experts and professors from the power electronics technology industry from all over the world and 360 teachers, students and practitioners from more than 10 key universities such as Tsinghua University and Zhejiang University.

Driven by consumption promotion and product diversification, the manufacturing industry's demand for automation and intelligent promotion in production and processing is also increasing. In the production process, the processing of "large and heavy" items is often difficult to control accurately, and the error of orientation is not as easy as that of "small" items. To this end ...