LS Power Information SHOW

	The inverter selects the appropriate peripheral equipment - LS power generation After we have selected a suitable Variable-frequency Drive (VFD), we also need to consider whether we need to equip other peripheral equipment according to the actual situation of the site. The peripheral equipment selected by VFD mainly includes circuit breakers, reactors, contactors, braking resistors, etc. ...
	The Importance of Welding in Inverter Maintenance – LS Generates Electricity Whether the welding skills of the inverter repair personnel are excellent is directly related to the quality and results after repair. If the welding quality is not up to standard during repair, the pins of the components will be broken when the components are disassembled, the printed circuits on the PCB will be damaged, the components will not be soldered firmly when the components are installed, and the two components ...
	The inverter generates electricity through the principle of intermediate DC bus power supply - LS Most of the inverter manufacturers produce traditional inverters, and their control systems and other power supplies are directly provided by single-phase or three-phase power grids. However, due to the increasing use of VFDs and servo motor amplifiers, a new power supply may emerge: powered by the central DC bus of the VFD. This electric ...
	Automatic adjustment of motor parameters - LS power generation Step 1: If the motor can be completely separated from the load, in the case of a power failure, the motor is mechanically separated from the load, and the motor is allowed to rotate freely without load. Step 2: After powering on, select the VFD command source (F0-04) as the command channel of the operation panel. ...
	Advantages and disadvantages of LS inverter non-sensing vector control The first generation of LS inverter selects the voltage frequency ratio scalar control method, which carries out frequency conversion speed regulation according to the linear ratio determined by the equivalent circuit of the asynchronous motor. Voltage refers to the effective value of the fundamental wave, and changing U/f can only regulate the steady-state magnetic flux and torque of the motor, not to mention dynamic control. In order to improve the low ...
	The cause and inspection method of inverter overload tripping - LS power generation 1. The main reason for the overload of the inverter (1) Malfunction, the current detection part inside the inverter has a problem, and the detected current signal is too large, resulting in tripping. (2) The mechanical load is overloaded, and the main feature of the overload is that the motor heats up, and it can be ...
	The power frequency motor is abnormally installed with an inverter - LS produces electricity Installing a variable-frequency drive (VFD) on the power frequency motor can complete the accurate control and speed regulation of the motor, and improve the power and accuracy of the forward motor. However, if not properly equipped and used, it may cause the following hazards: ...
	Inverter overvoltage alarm analysis - LS power generation Change the shutdown mode to inertia parking and you're done! In this way, after the fan is stopped, the inverter will immediately turn off the output, so that the fan can stop freely, at this time, although the fan is in the power generation situation, but the electricity generated by the fan will not pass through the inverter of the inverter to generate direct current, so the inverter will not overvoltage ...
	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 ...
	The cause of the failure of low-voltage electrical appliances - LS power generation In the control circuit of low-voltage electrical appliances, there are simple low-voltage components such as: buttons, safe, etc.; There are also slightly messy low-voltage electrical control components, such as circuit breakers, touch devices, time relays, thermal relays and other simple components, which makes it necessary to diagnose and analyze the cause of the problem. ...
	Inverter exception handling method - LS power generation 1. The working temperature of the inverter is high 1. Check whether the ambient temperature of the inverter is too high; 2. Check whether the cooling fan inside the device is working properly; 3. Check whether the ventilation pores and mask grilles are blocked; 4. Check if the load is too heavy. ...
	The main functions and functions of LS power production PLC 1. For sequential control: sequential control is based on the current and pre-historical conditions of the input switch, and produces the required switching output, so that the system can work in a certain order. This is the basic manipulation of the system. It is also a common manipulation in discrete production processes. ...
	Asynchronous motor with inverter - LS generates electricity Before the asynchronous motor is equipped with an inverter, let's take a look at the three major types of mechanical equipment loads: 1. Constant torque load: such as conveyor belts and mixers; When the inverter drags a load of constant torque nature, the torque at low speed should be large enough and the overload capacity should be large enough. If you need ...
	The inverter reads the rated data method - LS power generation The technical parameters of the inverter (Variable-frequency Drive, VFD) are divided into the input side and the output side. The technical parameters of the input side of the VFD include input voltage, number of phases and frequency; Output-side technical parameters include additional output voltage, additional current, additional capacity, capacity, frequency accuracy, etc.
	The protection measures of the power generator inverter for the motor The protection of the motor by the power converter mainly includes the following aspects: overvoltage protection, undervoltage protection, overcurrent protection, phase loss protection, inverter protection, overload protection, grounding protection, short circuit protection, overfrequency protection and stall protection. ...
	The difference between LS power inverter and servo An important difference between servo and frequency conversion is that frequency conversion can be without encoder, while servo must have an encoder for electronic commutation. 1. What the two have in common: The AC servo technology itself is to learn and apply the technology of frequency conversion, and the servo control of the DC motor is based on the ...
	Introduction of LS electric power contactors How LS Contactor Works: Generally, after the contactor coil is energized, the entire coil current will generate a magnetic field, which will make the core inside have electromagnetic attraction to attract the core, and let their communication contactor point action normally closed contact disconnect, or close, which ...
	Analysis of the problem of excessive current of LS three-phase motor for power generation First, the power supply problem 1. The power supply voltage is too high When the power supply voltage is too high, the motor back electromotive force, magnetic flux and magnetic flux density all increase. Since the magnitude of the iron loss is proportional to the square of the magnetic flux density, the iron loss increases, resulting in overheating of the core. And the increase in magnetic flux causes ...
	An internal component of LS's power circuit breaker 1. Auxiliary contact: the contact mechanically linked with the main circuit of the circuit breaker and the closing mechanism is mainly used for the display of the circuit breaker and the closing status, and is connected to the control circuit of the circuit breaker through the opening and closing of the circuit breaker to control or interlock its related electrical appliances. For example, output to signal lights, relays, etc.
	Introduction of LS power inverter governor Frequency conversion governor is the power frequency power supply (50Hz or 60Hz) into various frequencies of communication power supply, in order to complete the variable speed operation of the motor equipment, during 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 ...
	Precautions for the coordination of inverter and PLC - LS produces electricity As an alternative to traditional relays, PLC is widely used in various fields of industrial control. Because the PLC can be used to change the control process with software, and has the characteristics of small size, sensitive assembly, simple programming, strong anti-disturbance ability and high reliability, it is especially suitable for operation in harsh environments. ...