There are many kinds of components of the inverter, different components have different functions, and different components have different specializations! In addition to the composition and application of Aedley inverter, there are also key components of inverter to do their best for the operation of inverter!
Because the power equipment and the main circuit electrolytic capacitor in the inverter account for about 70% of the cost, some manufacturers in order to reduce costs, replace the 1200 volt module with a voltage resistant voltage of 1000 volts, replace the 30A with a current of 25A, and replace the special high-frequency electrolytic capacitor of the inverter with an ordinary low-frequency electrolytic capacitor. It can be easily damaged. Therefore, in the selection of inverter modules, we should choose to choose manufacturers or distributors with outstanding technical strength and after-sales service, no matter how good the product is, there may be faults, as long as the manufacturer or distributor has outstanding technical strength, you can get thoughtful technical services, free from worries.
The power module of the key equipment of the inverter is the IGBT module and the IPM intelligent power module, especially the IPM module, although the cost is higher, but because the module has maintenance functions such as overcurrent, short circuit, undervoltage, output grounding, overheating, etc., once an abnormality occurs, the module is immediately maintained internally, and then the second maintenance is carried out through the external maintenance circuit, the possibility of burning the module is greatly reduced, and the reliability is significantly improved. For the products that choose the GTR module, because the GTR itself has no maintenance function, the external maintenance circuit and propulsion circuit are very messy, once the maintenance cannot keep up, the module will burn out in an instant. In order to reduce costs, some manufacturers still choose GTR modules, which is also what they need to pay attention to when purchasing inverters.
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The factor that causes the breakdown of the inverter – Reynolds
1. Overpressure leads to brake pipe breakdown.
The so-called overvoltage of the inverter refers to the fact that the inverter voltage formed due to various reasons exceeds the additional voltage, which is concentrated in the DC voltage of the inverter DC bus.
The overvoltage alarm generally appears at the time of shutdown, and its main ...
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Inverter dust handling – Reynolds inverters
1. Plan a special inverter room: When the power of the inverter used is large or the number is large, a special inverter room can be planned. The doors, windows and cable holes in the room should be sealed to prevent dust from entering; It is necessary to plan air filtration equipment and circulation channels to adhere to the normal circulation of indoor air ...
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Reynolds inverter overhaul process
1) Query and query fault phenomena. The fault phenomenon of the inverter is varied, for example, the same type of problem may have different problem phenomena, and different types of problems may have the same kind of problem, which brings difficulties to find the problem. However, the problem phenomenon is the fundamental basis for repairing the inverter ...
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Inverter breakdown factor – Reynolds
1. Overpressure leads to brake pipe breakdown.
The so-called overvoltage of the inverter refers to the fact that the inverter voltage composed of various reasons exceeds the additional voltage, which is reflected in the DC voltage of the inverter DC bus.
Overvoltage alarm generally appears when the machine is shut down, and its main ...
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The cause of overheating of servo motor bearings - Reynolds
The motor itself:
1) The inner and outer rings of the bearing are too tightly cooperated.
2) There are problems with the shape and position tolerance of parts, such as the coaxiality of parts such as machine base, end cover, shaft and other parts is not good.
3) Improper selection of bearings.
4) The bearing is not smooth or the bearing is not clean, and there are impurities in the smooth grease. ...
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The cause of bearing noise in different situations of frequency converters - Reynolds
1. If the bearing is in good continuous rotation condition, it will emit a low whining or humming sound. Sharp hissing, squeaking and other irregular sounds often indicate that the bearing is in a bad continuous rotation condition. The sharp squeaky noise can be due to the formation of an inappropriately smooth ...
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DCS and PLC and other control cabinets are inspected before leaving the factory
1. Test preparation:
1. It is necessary to remove all power switches before powering on the PLC control cabinet or IO cabinet.
2. It is necessary to completely cut off the connection between the PLC or DCS card and the outside. All front adapters are to be loosened and raised.
3. Check the power terminal wires and connectors.
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Reynolds inverter FAQ - parameter class
1. What are the factory parameters of inverter rehabilitation?
N600 = 100 (often press the WR button for 3-5 seconds), it is necessary to be in the shutdown state to be effective.
2. In the parameters of the N308 motor of the inverter, [motor leakage inductance reactance] is the specified sub...
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The difference between frequency converter and power saver - Reynolds
Many people don't have a clear idea of the detailed differences and uses of AC converters and power savers. Power savers are generally divided into lighting appliances and power savers. Using high-voltage filtering and energy absorption skills, it automatically absorbs the energy of the reverse potential of high-voltage power equipment, and continuously feeds back ...
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The lightning protection method of Reynolds inverter
The lightning protection measures of the inverter equipment are another important peripheral measure to ensure the safe operation of the inverter, especially in the area where lightning is active or in the lively season, this problem is particularly important.
Today's inverter products are generally equipped with lightning ...
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Advantages of frequency converters over soft start – Reynolds
(1) The starting torque is large and the power factor is high. Because the power factor of the motor is related to the working frequency, the power factor under the power frequency power supply is much lower than that under the low-frequency power supply when the motor is running at low speed. The inverter can control the motor from low frequencies and ...
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Reynolds-5G empowers the paper industry to improve quality and efficiency of the industrial IoT control system
From September 23rd to September 25th, 2020, the 2020 China International Paper Technology Exhibition was held in Hall D1 of Suzhou International Expo Center.
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Overheating failure light on start-up analysis - Reynolds
(1) Frequent starting, resulting in excessive temperature, causing overheating maintenance of soft starter. (The number of starts of the soft starter should be controlled to no more than 6 times per hour, especially for heavy loads)
(2) During starting, ...
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The item that needs to be maintained after the inverter is shut down – Reynolds
1. Use a vacuum cleaner with a plastic nozzle to thoroughly 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 frequency conversion room, and the ventilation equipment can operate normally.
3. Check the inverter ...
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Tips for using reducers - Reynolds
1. After 200-300 hours of operation, the first oil change should be carried out, and the quality of the oil should be checked regularly in the subsequent use, and the oil mixed with impurities or deteriorated oil must be replaced in time. Under normal circumstances, the reducer for long-term continuous operation should be replaced after 5000 hours of operation or once a year.
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The way to set the parameters of the inverter - Reynolds
There are many setting parameters of the inverter, and each parameter has a certain range of choice, and the inverter can not work normally due to the improper setting of a single parameter in use, therefore, the relevant parameters must be set correctly.
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The role of frequency conversion technology in work equipment - Reynolds
Because inverters are widely used, there are many differences in the corresponding types and specifications. We are broadly divided into two categories: voltage and current. The current type of inverter products is characterized by the use of a large inductor as the energy storage link in the middle DC link, and the reactive power will be buffered by this inductor. ...
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Frequency conversion cabinet external conduit wiring method - Reynolds
When it is required to wiring outside the frequency conversion cabinet, it is generally necessary to use the conduit for wiring, which requires suitable mechanical pressure and unsuitable mechanical damage, moisture-proof and corrosion-resistant. Conduits include the following two wiring methods:
1. Kim ...
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Applicable mode of inverter maintenance - Reynolds inverter
CNC cutting machine
1. Gradual reduction method
The so-called gradual reduction method is to narrow the scope of shortcomings step by step by elaborating the shortcomings and judging the measurement parameters.
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What inverter to choose what occasion - Reynolds
We need to ensure that the capacity of the inverter is matched. First of all, according to the nature of the load, the correct selection of the type of inverter.
When selecting the inverter, the current value of the actual motor should be used as the basis for the selection of the inverter, and the rated power of the motor can only be used as a ...
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