SEW inverter MCV40A series model
MCV40A0015-5A3-4-00
MCV40A0022-5A3-4-00
MCV40A0030-5A3-4-00
MCV40A0040-5A3-4-00
MCV40A0055-5A3-4-00
MCV40A0075-5A3-4-00
MCV40A0110-5A3-4-00
MCV40A0150-5A3-4-00
MCV40A0220-5A3-4-00
MCV40A0300-5A3-4-00
MCV40A0400-5A3-4-00
MCV40A0450-5A3-4-00
MCV40A0550-5A3-4-00
MCV40A0750-5A3-4-00
SEW inverter MDX61B series model
MDX61B0005-5A3-4-00
MDX61B0008-5A3-4-00
MDX61B0011-5A3-4-00
MDX61B0014-5A3-4-00
MDX61B0015-5A3-4-00
MDX61B0022-5A3-4-00
MDX61B0030-5A3-4-00
MDX61B0040-5A3-4-00
MDX61B0055-5A3-4-00
MDX61B0075-5A3-4-00
MDX61B0110-5A3-4-00
MDX61B0150-503-4-00
MDX61B0220-503-4-00
MDX61B0300-503-4-00
MDX61B0370-503-4-00
MDX61B0450-503-4-00
MDX61B0550-503-4-00
MDX61B0750-503-4-00
MDX61B0900-503-4-00
MDX61B1100-503-4-00
MDX61B1320-503-4-00
MDX61B0005-5A3-4-0T
MDX61B0008-5A3-4-0T
MDX61B0011-5A3-4-0T
MDX61B0014-5A3-4-0T
MDX61B0015-5A3-4-0T
MDX61B0022-5A3-4-0T
MDX61B0030-5A3-4-0T
MDX61B0040-5A3-4-0T
MDX61B0055-5A3-4-0T
MDX61B0075-5A3-4-0T
MDX61B0110-5A3-4-0T
MDX61B0150-503-4-0T
MDX61B0220-503-4-0T
MDX61B0300-503-4-0T
MDX61B0370-503-4-0T
MDX61B0450-503-4-0T
MDX61B0550-503-4-0T
MDX61B0750-503-4-0T
MDX61B0900-503-4-0T
MDX61B1100-503-4-0T
MDX61B1320-503-4-0T
SEW inverter MC07B series model
MC07B0003-2B1-4-00
MC07B0004-2B1-4-00
MC07B0005-2B1-4-00
MC07B0008-2B1-4-00
MC07B0011-2B1-4-00
MC07B0015-2B1-4-00
MC07B0022-2B1-4-00
MC07B0003-5A3-4-00
MC07B0004-5A3-4-00
MC07B0005-5A3-4-00
MC07B0008-5A3-4-00
MC07B0011-5A3-4-00
MC07B0015-5A3-4-00
MC07B0022-5A3-4-00
MC07B0030-5A3-4-00
MC07B0040-5A3-4-00
MC07B0055-5A3-4-00
MC07B0075-5A3-4-00
MC07B0110-5A3-4-00
MC07B0450-5A3-4-00
MC07B0550-5A3-4-00
MC07B0750-5A3-4-00
SEW inverter MDV60A series model
MDV60A0015-5A3-4-00
MDV60A0022-5A3-4-00
MDV60A0030-5A3-4-00
MDV60A0040-5A3-4-00
MDV60A0055-5A3-4-00
MDV60A0075-5A3-4-00
MDV60A0110-5A3-4-00
MDV60A0150-5A3-4-00
MDV60A0220-5A3-4-00
MDV60A0300-5A3-4-00
MDV60A0370-5A3-4-00
MDV60A0450-5A3-4-00
MDV60A0550-5A3-4-00
MDV60A0750-5A3-4-00
MDV60A0900-5A3-4-00
MDV60A1100-5A3-4-00
MDV60A1320-5A3-4-00
SEW inverter MCF40A series model
MCF40A0015-5A3-4-00
MCF40A0022-5A3-4-00
MCF40A0030-5A3-4-00
MCF40A0040-5A3-4-00
MCF40A0055-5A3-4-00
MCF40A0075-5A3-4-00
MCF40A0110-5A3-4-00
MCF40A0150-5A3-4-00
MCF40A0220-5A3-4-00
MCF40A0300-5A3-4-00
MCF40A0400-5A3-4-00
MCF40A0450-5A3-4-00
MCF40A0550-5A3-4-00
MCF40A0750-5A3-4-00
MCF41A0015-5A3-4-00
MCF41A0022-5A3-4-00
MCF41A0030-5A3-4-00
MCF41A0040-5A3-4-00
MCF41A0055-5A3-4-00
MCF41A0075-5A3-4-00
MCF41A0110-5A3-4-00
MCF41A0150-5A3-4-00
MCF41A0220-5A3-4-00
MCF41A0300-5A3-4-00
MCF41A0370-5A3-4-00
MCF41A0450-5A3-4-00
SEW inverter MCS41A series model
MCS41A0015-5A3-4-00
MCS41A0022-5A3-4-00
MCS41A0030-5A3-4-00
MCS41A0040-5A3-4-00
MCS41A0055-5A3-4-00
MCS41A0075-5A3-4-00
MCS41A0110-5A3-4-00
MCS41A0150-5A3-4-00
MCS41A0220-5A3-4-00
MCS41A0300-5A3-4-00
MCS41A0370-5A3-4-00
MCS41A0450-5A3-4-00
SEW inverter MCV41A series model
MCV41A0015-5A3-4-00
MCV41A0022-5A3-4-00
MCV41A0030-5A3-4-00
MCV41A0040-5A3-4-00
MCV41A0055-5A3-4-00
MCV41A0075-5A3-4-00
MCV41A0110-5A3-4-00
MCV41A0150-5A3-4-00
MCV41A0220-5A3-4-00
MCV41A0300-5A3-4-00
MCV41A0400-5A3-4-00
MCV41A0450-5A3-4-00
MCV41A0550-5A3-4-00
MCV41A0750-5A3-4-00
MC07B0003-2B1-4-00
MC07B0004-2B1-4-00
MC07B0005-2B1-4-00
MC07B0008-2B1-4-00
MC07B0011-2B1-4-00
MC07B0015-2B1-4-00
MC07B0022-2B1-4-00
MC07B0003-5A3-4-00
MC07B0004-5A3-4-00
MC07B0005-5A3-4-00
MC07B0008-5A3-4-00
MC07B0011-5A3-4-00
MC07B0015-5A3-4-00
MC07B0022-5A3-4-00
MC07B0030-5A3-4-00
MC07B0040-5A3-4-00
MC07B0055-5A3-4-00
MC07B0075-5A3-4-00
MC07B0110-5A3-4-00
MC07B0150-5A3-4-00
MC07B0220-5A3-4-00
MC07B0300-5A3-4-00
MC07B0370-5A3-4-00
MC07B0450-5A3-4-00
MC07B0550-5A3-4-00
MC07B0750-5A3-4-00
SEW inverter MCH41A series model
MCH41A0015-5A3-4-00
MCH41A0022-5A3-4-00
MCH41A0030-5A3-4-00
MCH41A0040-5A3-4-00
MCH41A0055-5A3-4-00
MCH41A0075-5A3-4-00
MCH41A0110-5A3-4-00
MCH41A0150-5A3-4-00
MCH41A0220-5A3-4-00
Variable frequency Drive (VFD) is a power control device that controls ac motor by changing the frequency mode of the working power supply of the motor by using frequency conversion technology and microelectronics technology.
The inverter is mainly composed of rectifying (ac to dc), filtering, inverter (dc to ac), braking unit, driving unit, testing unit and so on. Frequency converter on the internal IGBT to adjust the voltage and frequency of the output power supply, according to the actual needs of the motor to provide the required power supply voltage, and to achieve the purpose of energy saving, speed regulation, in addition, the inverter has a lot of protection functions, such as overcurrent, overvoltage, overload protection and so on. With the improvement of industrial automation, frequency converter has been widely used.
Inverter composition
The main circuit
The main circuit is the power conversion part which provides the voltage and frequency modulation power supply for the asynchronous motor
Variable-frequency power analyzer
: voltage type is the converter that converts the dc of the voltage source into the ac, and the filter of the dc circuit is the capacitor. Current type is the converter that converts the dc of current source into ac, and the dc circuit filter is the inductance. It consists of three parts: a "rectifier" that converts power frequency power to dc power, a "flat wave loop" that absorbs the voltage pulsation generated by the converter and inverter, and an "inverter" that converts dc power to ac power
rectifier
A large number of USES are diode converters, which convert power to dc power. Two sets of transistor converters can also be used to form a reversible converter.
Flat wave loop
The dc voltage rectified by the rectifier contains the pulsating voltage of 6 times the frequency of the power supply. In addition, the pulsating current generated by the inverter also makes the dc voltage change. To suppress voltage fluctuations, inductance and capacitance are used to absorb pulsating voltage (current). When the device capacity is small, if the power supply and the main circuit components have a margin, the inductance can be eliminated by using a simple flat wave circuit.
inverter
In contrast to the rectifier, the inverter converts the dc power to the ac power of the required frequency, and the 3-phase ac output can be obtained by switching the 6 switching devices on and off at the specified time. The switching time and voltage waveform are shown by taking voltage PWM inverter as an example.
Control circuit for asynchronous motor power supply (voltage, frequency adjustable) of main circuit provides the control signal circuit, it has "operation circuit of frequency, voltage, the voltage, current detection circuit of main circuit, motor speed detection circuit, the operation circuit of the control signal amplification" drive circuit ", and "protection circuit of inverter and motor.
(1) operation circuit: compare the external speed, torque and other instructions with the current and voltage signals of the detection circuit, and determine the output voltage and frequency of the inverter.
(2) voltage and current detection circuit: voltage and current detection is isolated from the main circuit potential.
(3) drive circuit: the circuit that drives the main circuit device. It is isolated from the control circuit so that the main circuit device on and off.
(4) speed detection circuit: the signal of the speed detector (tg, PLG, etc.) installed on the asynchronous motor shaft machine is the speed signal, which is fed into the calculation circuit, and the motor can operate according to the instruction and calculation.
(5) protection circuit: detect the voltage and current of the main circuit, etc., in case of overload or overvoltage, in order to prevent the damage of the inverter and asynchronous motor.
functions
Variable frequency energy saving
The energy saving of inverter is mainly manifested in the application of fan and water pump. After variable frequency speed regulation is adopted for fan and pump loads, the power saving rate is 20% ~ 60%. This is because the actual power consumption of fan and pump loads is basically proportional to the cubic power of the rotation speed. When the average flow rate required by the user is small, the fan, pump USES frequency conversion speed regulation to reduce its speed, the energy saving effect is very obvious. But the traditional fan, the pump class USES the baffle and the valve to carry on the flow regulation, the motor speed is basically unchanged, the consumption power changes little. According to statistics, the electric power consumption of fans and pumps accounted for 31% of the national electric power consumption and 50% of the industrial electric power consumption. It is very important to use variable frequency speed regulating device on this kind of load. At present, the application of more successful constant pressure water supply, all kinds of fans, central air conditioning and hydraulic pump frequency control.
Application in automation system
Due to the frequency converter built-in 32-bit or 16-bit microprocessor, with a variety of arithmetic and logic operations and intelligent control functions, the output frequency accuracy of 0.1%~0.01%, and set a perfect detection, protection link, therefore, in the automation system has been widely used. For example: chemical fiber industry in the winding, stretching, measuring, guide wire; Glass industry in the plate glass annealing furnace, glass kiln mixing, drawing machine, bottle making machine; Automatic charging and batching system of electric arc furnace and intelligent control of elevator. The application of frequency converter in CNC machine control, automobile production line, papermaking and elevator.
Application in improving process level and product quality
Inverter can also be widely used in transmission, lifting, extrusion and machine tools and other mechanical equipment control fields, it can improve the level of technology and product quality, reduce the impact and noise of equipment, extend the service life of equipment. The use of variable frequency speed control, so that the mechanical system is simplified, operation and control more convenient, some can even change the original process specifications, thus improving the function of the entire equipment. For example, in molding machines used in textiles and many industries, the internal temperature is adjusted by changing the amount of hot air sent in. The delivery of hot air is usually a circulating fan, as the fan speed is not changed, the number of hot air into the only damper to adjust. If the throttle adjustment failure or improper adjustment will cause the machine out of control, thus affecting the quality of finished products. Circulation fan started at high speed, the belt and the bearing wear is very severe, make the belt into a consumable. After adopting frequency conversion speed regulation, temperature regulation can be realized by automatically adjusting the speed of the fan through frequency converter, which solves the product quality problem. In addition, the inverter can easily realize the fan at low frequency and low speed to start and reduce the wear between the belt and the bearing, but also can extend the service life of the equipment, at the same time can save 40% energy.
Realize soft start of motor
The hard start of the motor will not only cause serious impact on the power grid, but also high demand on the power grid capacity. The large current and vibration generated during the start will do great damage to the baffle and valve, which is extremely detrimental to the service life of the equipment and pipelines. After using the inverter, the soft start function of the inverter will make the starting current change from zero, and the maximum value will not exceed the rated current, which reduces the impact on the power grid and the demand for the power supply capacity, prolonging the service life of the equipment and valve, and also saves the maintenance cost of the equipment.
classification
1. Classification by input voltage level
Frequency converter according to the input voltage level can be divided into low-voltage frequency converter and high-voltage frequency converter, low-voltage frequency converter is common in China has single-phase 220v frequency converter, three-phase 220v frequency converter, I phase 380 V frequency converter. High voltage inverter is commonly 6 kV, 10 kV transformer, the control mode is generally according to the high frequency converter or high frequency converter mode for conversion.
2. By the method of frequency conversion classification
Frequency converter according to the frequency conversion method is divided into ac - ac inverter and ac - dc inverter. Ac - ac inverter can be directly converted into ac frequency, voltage can be controlled, so called direct converter. Ac - ac inverter is the first power frequency alternating current through the rectifier into dc, and then the dc into frequency, voltage can be adjusted ac, so it is also known as indirect inverter.
3. According to the nature of dc power
In ac-dc-ac converter, the dc power supply is divided into voltage converter and current converter in the process of converting the main circuit power supply into dc power supply.
