With the support of data processing, signal analysis and computer skills, the transmission system uses dynamic error detection equipment, starting from the measurement of time domain error information, and the internal dynamic test of the transmission system should include the following aspects.
(1) Dynamic accuracy detection of transmission chain
The encouragement of the transmission system includes the periodic encouragement caused by the processing and assembly errors of the cycloidal wheel, pinwheel, gear, worm gear, worm screw, screw, shaft system, etc., the vibration and impact encouragement of the transmission parts in the operation of the transmission chain, and the random encouragement caused by the shaking of the power grid and the instability of the instantaneous operation of the transmission parts.
(2) Time domain analysis and handling of errors
The data processing skills are used to calculate and process the error samples in the time domain. The characteristic values of the transmission system in the time domain can be obtained, and the accuracy of the system can be commented on. Then, the nature of the error can be confirmed by analyzing the time domain error of the system.
(3) Frequency domain analysis of errors
Using the spectrum analysis skills in signal analysis, the time domain error of the cycloidal pinwheel reducer system is changed to the frequency domain for spectrum analysis, and then the spectrum obtained from the analysis is compared and analyzed with the speed of each transmission part of the transmission chain under certain working conditions, so that the fault parts in the chain and the contribution of each transmission part error to the error of the whole chain can be accurately found, and then the fault diagnosis of the transmission system can be realized.
|
More on that
|
The five stages of mastery of PLC technology
One. Logical stage
The so-called logical stage is to be able to complete the general logical planning in the relay system, since it is a relay system, so the knowledge of power drag is the foundation of this stage. I personally summarize that the root of learning the relay system lies in the word "grab", the relay system ...
|
|
Variable frequency regenerative braking method - LS generates electricity
1. Energy consumption type
This method is to connect a braking resistor in parallel in the DC circuit of the inverter, and control the on/off of a power tube by detecting the DC bus voltage. When the DC bus voltage rises to about 700V, the power tube is turned on, and the regenerative energy is passed into the resistor.
|
|
Parameter setting of LS power inverter
The inverter is a high-tech intelligent product, in order to let it complete the specified control mission, it must be set parameters, otherwise, it is like the computer is not installed and used, and it cannot be operated normally. The parameter setting is carried out by the control surface of the inverter. All kinds of inverters ...
|
|
LS Electric helps Cisco Smart City build an industry benchmark
In March 2019, LS Group signed a strategic cooperation agreement with Country Garden to build Cisco Smart City into an innovative model for smart cities. LS Electric will provide power distribution system solutions for Cisco (Guangzhou) Smart City, providing frame circuit breakers, molded case circuit breakers, vacuum circuit breakers, miniature circuit breakers, and micro circuit breakers.
|
|
Selection principles and key points of AC contactors for power production
1. The coil voltage of the contactor should generally be lower, so that the insulation requirements of the contactor can be reduced, and it is safer to use. However, in order to facilitate and reduce the equipment, it is often selected according to the actual grid voltage.
2. The operating frequency of the motor is not high, such as compressor, water pump, air ...
|
|
The difference between low-speed and high-speed centrifuges – LS generates electricity
Through the rational planning of the structure of the low-speed centrifuge, the hygienic dead angle can be effectively eliminated. The transition of the structural parts is smooth, and the surface is polished. External structural components, fasteners, and rollers are made of stainless steel. The housing is a clamshell type, which allows for thorough cleaning of the interlayer space of the centrifuge housing without the need for a bowl ...
|
|
Dealing with the "transient" fault method of DP slave - LS power generation
Due to poor contact of network connectors, or due to disturbance and other problems, DP networks that have been used for a long time may show a "transient disconnection" situation, that is, occasionally disconnected instantaneously, and quickly recover to normal. If OB86 is not downloaded, the CPU will stop during a transient outage. Now all over the option to download a ...
|
|
Methods for extending the service life of inverters - LS generates electricity
1. The influence of electromagnetic disturbance on the inverter:
In the modern industrial control system, the microcomputer or PLC control technology is mostly selected, and in the process of system planning or transformation, it is necessary to pay attention to the disturbance of the inverter to the microcomputer control board. The inverter is disturbed by the outside world, because the user ...
|
|
LS MASTER-K120S series PLC features and advantages
(1) This series is divided into two types: economic type and standard type, which can meet the requirements of different customers:
Economical: 10/14/20/30 points (10/14 points with 2 built-in analog potentiometers), up to 70 points.
Standard type: 20/30/40/60 point DR/DRT (2-axis position ...
|
|
What is the difference between LS inverter and LG inverter?
LS inverter and LG inverter are the same, there is no difference between the two.
LS inverter, the full name of LS AC inverter governor, after supplying a variety of configurations, converts direct current into communication power, and changes the general power supply ...
|
|
Common faults in terminal blocks - LS generates electricity
From the point of view of application, the function that should be reached is: it is necessary to conduct the local area where the touch part should be conducted, and the touch is reliable. If the insulating part should not be conducted, it is necessary to insulate it firmly. There are three common types of faults in terminal blocks:
...
|
|
Summer maintenance and maintenance of inverter method - LS power generation
1. Check the running 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 chamber, which is generally between -5 °C and 40 °C. The temperature rise of the phase-shifting transformer should not exceed 130°C.
3. Prevent ...
|
|
What are the categories of PLC products?
The XGT series is a creative PLC product family that combines LS's power generation technology capabilities to provide next-generation solutions based on open networks, ultra-high-speed processing speeds, compact scales, and greatly improved software for the engineering environment. XGT series for a variety of ...
|
|
Power production PLC installation and wiring skills
The PLC should be kept away from strong disturbance sources such as electric welding machines, high-power silicon rectifier equipment and large-scale power equipment, and cannot be installed in the same switch cabinet as high-voltage electrical appliances.
Power line, control line and PLC power line and I/O line should be separated from the wiring, barrier transformer and PLC and I/O should be selected ...
|
|
Introduction to the output frequency of the inverter - LS power generation
1. Maximum frequency fmax, reference frequency fN and reference voltage UN
2. The upper frequency fH and the lower frequency fL
The output frequency of the inverter is limited to the upper and lower limit frequencies to prevent errors in the event of misoperation.
3. Frequency of activation
When the signal ON is activated, the ON ...
|
|
Inverter circuit structure - LS generates electricity
The main circuit is the power replacement part of the power supply for the asynchronous motor, and the main circuit of the inverter can be roughly divided into two categories: the voltage type is to change the DC of the voltage source to the communication of the DC port of the inverter, and the filter is the capacitor. The current type is to change the DC of the current source to the communication ...
|
|
The main part of LS power inverter is composed
The inverter circuit is the first part of the inverter
The function of the DC central circuit is to smooth the output of the rectifier circuit to ensure that the inverter circuit and the control power supply can obtain a DC power supply with higher quality. When the rectifier circuit is the voltage flow of the central circuit, the primary component is the electrolysis of Darongtong ...
|
|
What are the determinants of the performance of LS inverters?
The quality of the control circuit determines the function of the LS inverter.
The function of the DC central circuit is to smooth the output of the rectifier circuit to ensure that the inverter circuit and the control power supply can obtain a high-quality DC power supply. When the whole ...
|
|
Introduction of plc inverter - LS power generation
Because the imported products of the inverter brand have their own PLC function, they mainly play an important role in the control effect of mechanical equipment, and play an important role in the equipment, which can regulate the operation and control of the machine and meet the requirements of users.
It should be scale
pLC ...
|
|
LS power generation installs the switching power supply step
1. Confirm the location of the device
Before the equipment switches on and off the power supply, it is necessary to confirm the location of the equipment, and generally require the equipment to be in a ventilated, boring, non-corrosive gas and dust-free place.
2. Equipment holder
The fixed base of the switching power supply is fixed on the orientation of the equipment, and the general ...
|
|
Contact
working hours
