1. When the power supply is now powered or the inverter is in operation, do not open the shell of the inverter. Otherwise, an electric shock may occur.
2. When the front cover of the inverter is opened, do not run the inverter. Otherwise, you may be shocked by the high-voltage terminals or exposed charging capacitors.
3. In addition to regular inspection or wiring, do not open the shell of the inverter, even if the inverter is not connected to the input power supply. Otherwise, you may receive an electric shock from approaching the charging circuit.
4. Wiring and regular inspection should be operated after removing the input power supply and using the instrument to discharge the DC side voltage (lower than DC 30V) for at least 10 minutes. Otherwise, you may be electrocuted.
5. Start the switch with a dry hand. Otherwise, you may be electrocuted.
6. Do not use cables with broken insulation. Otherwise, you may be electrocuted.
7. Do not make the cable scratched, squeezed, overvoltage and overloaded. Otherwise, you may be electrocuted.
8. The inverter should be installed on a non-flammable surface, and the flammability data should not be placed nearby. Otherwise, there may be a fire.
9. If the inverter is damaged, disconnect the input power immediately. Otherwise, you may be physically harmed.
10. Do not energize the inverter that is damaged or has few parts, even if the installation is now complete. Otherwise you may have motors.
11. Linen, paper scraps, wood chips, dust, metal fragments or other sundries are not allowed to enter the inverter. Otherwise, there may be a fire or accident.
|
More on that
|
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.
...
|
|
After the contactor is energized, the start button continuously engages and disconnects ?—— LS generates power
What is the reason why the contactor keeps engaging and disconnecting by pressing the start button after the AC contactor is energized?
In my personal opinion, most of the situation is caused by the wrong coil voltage of the replacement AC contactor, or the purchase of ...
|
|
Introduction of LS power products
1. Power-related products: medium, low and high voltage electrical products;
(1) Low Voltage Products: Molded Case Circuit Breaker, Air Circuit Breaker, LS Contactor & Overload Relay, Miniature Circuit Breaker, Dual Power Automatic Transfer Switch, Intelligent Motor Protector, Manual Motor Starter, Surge Protection ...
|
|
The essence and use of LS power PLC module
1. What is PLC?
PLC control system, Programmable Logic Controller, programmable logic controller, a digital operation of electronic devices specially designed for industrial production planning, it uses a class of programmable memory, used in its internal storage program, the execution of logic...
|
|
Characteristics of single-phase current converter - LS power generation
Single-phase current transmitter is a kind of power test substation developed for the power measurement of single-phase AC in motor test on the basis of motor test and test technology research, in accordance with IEC and relevant national specifications for motor test. The selection of advanced filtering technology, reasonable software algorithms, processing ...
|
|
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.
...
|
|
LS produces common sense of electroplastic case circuit breaker
(1) Tripping
LS electric molded case circuit breaker basically involves the tripping unit in the process of practical application, and the tripping is generally a tripping method of thermomagnetic tripping or electronic tripping.
In the process of practical application, if it is a ...
|
|
LS power production contactors are used in this area
LS contactors are divided into AC contactors (voltage AC) and DC contactors (voltage DC), which are used in electricity, power distribution and consumption. Contactor in a broad sense refers to the electrical appliances that use the current flowing through the coil to generate a magnetic field and close the contact to control the load in industrial electricity.
...
|
|
LS inverter series and its features
LS inverter, the full name of LS communication frequency conversion governor, after supplying a variety of equipment, converts direct current into communication electricity, and changes the voltage and frequency of ordinary power supply input to control the speed of the motor, to meet different industrial needs, and then complete the energy saving and environmental protection of the automation system. ...
|
|
Inverter applications and common loads – LS generates electricity
1. Air conditioning load
Office buildings, shopping malls and some supermarkets and factories have central air conditioning, and the electricity consumption of air conditioning is very large during the peak electricity consumption in summer. In hot weather, the electricity consumption of air conditioners in Beijing, Shanghai and Shenzhen accounts for more than 40% of peak electricity. Therefore, with inverter equipment, drag the air conditioning system ...
|
|
Selection of AC contactors in the field of building electrical - LS power production
1. The series and parallel connection application of contactors Many electrical equipment are single-phase loads, so several poles of multi-pole contactors can be used in parallel. Such as resistance furnaces, welding transformers, etc. When using several poles in parallel, a smaller capacity contactor can be used. However, it must be noted that after parallel ...
|
|
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 inverter IGXA series
LS inverter, the full name of LS AC inverter governor, converts direct current into alternating current by providing a variety of use configurations, and controls the speed of the motor by changing the voltage and frequency of the general power input to meet different industrial needs, so as to complete the energy saving and environmental protection of the automation system. ...
|
|
An integral part of an electrical solid state relay
Solid state relays consist of three parts: the input circuit, the barrier (coupling), and the output circuit.
Input Circuit:
According to the different categories of input voltage, the input circuit can be divided into DC input circuit, communication input circuit and AC-DC ...
|
|
The basic method and steps of inverter debugging - power 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.
|
|
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 ...
|
|
LG Inverter-LS Inverter-IGXA Sales
LG Inverter LS Inverter IGXA Series ** for sale, its models are as follows:
SV004IGXA-4 60210101W0 Power 0.37KW (Input: 3-phase 380V / Output: 3-phase 0——380V)
SV008IGXA-4 6021010 ...
|
|
The vector control mode of low-voltage general-purpose inverter - LS power generation
The method of vector control frequency conversion speed regulation is to change the stator current Ia, Ib, Ic of the asynchronous motor in the three-phase coordinate system, after the three-phase - two-phase change, equivalent to the communication current Ia1Ib1 under the two-phase static coordinate system, and then after the directional rotation according to the rotor magnetic field, it is equivalent to synchronous rotation sitting.
|
|
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 ...
|
|
Grounding of the secondary side of the voltage transformer and the current transformer - power generation
1. The transformer is grounded twice
It refers to the grounding of the S2 terminal of the current transformer or the ground of the n terminal of the voltage transformer. As long as the single point is grounded, because the transformer is blocked between the second and the first, before grounding, the secondary winding has no potential connection with the ground, after grounding, the transformer ...
|
|
Contact
working hours
