1. Check whether the appearance of the inverter is in good condition, including whether the indicator light is in normal operation, whether the task control function of the operation panel is complete, and carefully observe the appearance of the inverter in operation conditions, and do the corresponding recording operations; When repairing the inverter, check whether the voltage value and current value exceed the allowable value, so as to avoid the overload of the inverter; If an abnormal situation is found, effective measures should be taken to avoid the expansion of the problem, and try to quickly eliminate the problem in a small scale
2. When repairing the inverter, check whether the power supply equipment is operating normally, whether the fundamental line is damaged, and ensure that the line operation is always in a stable condition; Check whether the cooling mechanism itself and its operation are safe and reliable, and whether the inverter is affected by grease and dust during operation. If too much grease and dust accumulate, it will directly block the operation of the air cooler, resulting in the heat dissipation error of the inverter, resulting in an abnormal increase in the temperature of the Schneider inverter, and causing the operation of the inverter. Therefore, it is necessary for the inverter to regularly clean up the dust and oil around the cooler to ensure the smooth exhaust of the cooler.
3. When repairing the inverter, detect the heat dissipation and thermal conductivity of the inverter under operating conditions, check whether the radiator is operating normally, do a good job in the daily maintenance of the radiator, sort out the dust on the radiator, and avoid affecting the heat dissipation function of the inverter due to dust accumulation; When installing the inverter, it is necessary to install it in accordance with the relevant specifications, choose to install it in the outstanding operating environment area, eliminate the bad influence of the harsh environment on the operation of the inverter, and especially avoid installing the inverter in an environment with dusty, humid and corrosive substances.
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Advantages and disadvantages of orifice flowmeters – Schneider
The orifice flowmeter is a high-range ratio differential pressure flow device composed of a standard orifice plate and a multi-parameter differential pressure transmitter (or differential pressure transmitter, temperature transmitter and pressure transmitter), which can measure the flow rate of gas, steam, liquid and natural gas. Widely used in petroleum, chemical, metallurgy, electric power ...
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Schneider frame circuit breaker MT circuit breaker does not close the brake problem
Schneider structural circuit breaker is not stored (check the power supply of the energy storage motor, if it is normal, check whether it can be manually stored for energy)
MX shunt coil live (disconnect MX coil power)
The MN coil is not charged or faulty (a voltage higher than 0.85Un is applied to the MN)
The circuit breaker is latched in ...
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Schneider diode selection experience and substitution method
1. Selection of detection diode
Point-contact germanium diodes are generally used for detection diodes, such as 2AP series. When selecting, the detection diode with high operating frequency, small reverse current and large forward current should be selected according to the specific requirements of the circuit. Although the detection and rectification of ...
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Whether an AC circuit breaker can be used in a DC circuit
Schneider circuit breakers are used to open and break communication loops. The arc extinguishing of the communication system is simple, but the arc extinguishing of the DC system is more difficult. Because the system is different and the arc extinguishing principle is different, there is a big difference in structure and performance between the communication circuit breaker and the DC circuit breaker. Compared with the communication circuit breaker, the DC circuit breaker ...
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Schneider soft-start ATS48 application range
ATS48 soft starter is used in water treatment, food and beverage, mining metallurgy, power and chemicals. Scope of application: including pump fans and large inertia machine compressor conveyors
Advantages: 1. Economical solution
Reduce mechanical stress and increase machine availability.
2. ...
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Schneider instrumentation maintenance precautions
1. Don't blindly knock and bump when overhauling to avoid expansion failures, and the more you repair, the worse it gets.
2. Do not plug and unplug various control boards and plugs with electricity. Due to the strong induced electromotive force generated by plugging and unplugging the control board under the power-on condition, the instantaneous ...
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The difference between vector inverter and general-purpose inverter - Schneider
There are two main differences between vector inverters and general-purpose inverters. One is high control accuracy, and the other is high output torque at low speed.
Vector special inverter:
The operating principle of the vector special inverter is to carry out inverter after rectification, ...
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Schneider servo motor advantages
Schneider servo motor is one of the brands of servo motor, the performance is relatively good, is a brand made in Germany, in China ** degree is relatively high. Servo motor refers to the servo system, (servomechanism) in which the mechanical components are controlled.
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Schneider Electric Innovation Summit "The future is digital"
The name of a company's product was mentioned more than anyone could remember, but on the first day of the Schneider Electric North America Innovation Summit in Atlanta on Tuesday, another word appeared even more often ...
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The difference between Schneider PLC and Siemens PLC
There are three main differences, namely: different applications, different products, and different characteristics.
1. The application situation is different: the programmable manipulator produced by Siemens in Germany is also widely used in China.
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Schneider Intermediate Relay Model Letter Meaning
RXM: Schneider's miniature center relay
The first 2: indicates the number of contacts, and the normally open contact is 2
LB: Indicates that the product has LED light
The second 2: indicates the number of contacts, and the normally closed contacts are 2
BD: Indicates that the supply voltage used is DC 24V
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Schneider miniature circuit breaker model and parameter difference
Schneider miniature circuit breakers are commonly used in C65, C120, EA9, INT125 and other products.
Parameter differences:
N -------- breaking ability, N is 6000A, H is 10000A, L is 15kA
...
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Schneider soft starter fault alarm maintenance method
1. Question-F 05 (frequency error):
This problem is caused by a problem with the soft starter processing the internal power signal, which is causing errors in the power supply frequency. This situation needs to be handled by the company's product development software design engineer. Mainly start the power supply circuit design ...
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Four-pole switches need a scene – Schneider
(1) It is necessary to choose a four-pole switch:
For the sake of repair safety: in the TT grounding system, the total equipotential bonding is done on the user side, but because the total equipotential bonding at this moment does not include the neutral wire, the line fault (for example: a phase wire grounding) occurs on the grounding electrode on the power supply side.
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How to choose a Schneider circuit breaker?
First, calculate the value of the current of each branch
(1) Purely resistive loads, such as bulbs, electric heaters, etc., are directly divided by the indicated power by voltage, that is, the formula I = power/220v; For example, a 20w bulb, branch current I=20W/220=0.09A electric air ...
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Analysis of the causes of Schneider touch screen touch deviation
(1) Fault--: Contact error
Phenomenon 1: The direction of the finger does not coincide with the mouse arrow.
Reason 1: After installing the driver, there is no vertical contact with the bullseye center when correcting the bearing. Solution 1: Re-align the bearing.
Phenomenon 2: Some districts ...
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About the characteristics of Schneider explosion-proof inverter cabinet
1. Aluminum alloy shell or steel plate welding, surface spraying;
2. Built-in inverters, circuit breakers, signal lights and other components produced by domestic or Schneider and other companies;
3. It mainly regulates ordinary three-phase by changing its output frequency ...
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Servo motor selection process – Schneider
1. Load organization (acknowledging the type of tissue and its specific data, such as ball screw length, ball screw diameter, stroke, pulley diameter, etc.)
2. Form of action (acknowledging the form of action of manipulating the target, the relationship between time and speed; Will manipulate ...
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Features of Schneider explosion-proof inverter boxes
1. Aluminum alloy shell or steel plate welding, plastic spraying on the surface;
2. Built-in inverters, circuit breakers, signal lights and other components produced by domestic or Schneider and other companies;
3. It mainly regulates the general three-phase difference by changing its output frequency.
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The role of Schneider instrumentation in the air separation process
The appearance of the instrument plays a very important role in the air separation equipment and gas purification process, and it is indispensable for the adjustment of the air separation process and the detection of product quality. Because there are different types of on-line profiles for monitoring targets in different gaseous media at each stage of the ASU process, the ...
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