MITSUBISHI inverter FR-D720S series.
Voltage level: single phase 200V.
Frequency converter capacity: 0.2KW.
VVVF frequency control, vector control frequency conversion, direct torque control is a kind of AC - DC - AC frequency conversion.
The common drawback is that the input power factor is low, the harmonic current is big, and the DC circuit needs large energy sstorage capacity,
Renewable energy and can not be fed back to the power grid, which can not be carried out in the four quadrant operation FX2N-48MR-ES/UL FX2N-48MR-ES/UL. To this end, the matrix type of AC - AC variable frequency arises at the historic moment.
Because the matrix type alternating current frequency saves the intermediate DC link, thereby, the electrolytic capacitor with large volume and high price can be omitted.
It can achieve a power factor of L, the input current is sinusoidal and can run in four quadrant, the power density of the system is large FX2N-48MR-ES/UL.
Although the technology is not yet mature, but still attract a large number of scholars in-depth study.
In fact, the quality is not the indirect control current, flux, but the torque is directly used as the control to achieve MITSUBISHI FX2N-48MR-ES/UL. "MITSUBISHI inverter FR-F740P series.
Voltage level: three phase 400V.
Frequency converter capacity: 3.7KW.
It is based on the overall effect of three-phase waveform generation,
In order to approach the ideal circular rotating magnetic field in the air gap of the motor,
A generation phase modulation waveform control inscribesthe polygon to approach the circle way MITSUBISHI FX2N-48MR-ES/UL.
After practice, it has been improved, that is, the introduction of frequency compensation, can eliminate the error of speed control;
By feedback estimation of flux amplitude, eliminating the influence of stator resistance at low speed, the output voltage and current closed loop,
In order to improve the accuracy and stability of the dynamic MITSUBISHI FX2N-48MR-ES/UL.
But there are many control circuit, and no torque is introduced, so the system performance has not been improved.
Frequency converter is a power control device which uses the power of the power semiconductor device to change the power frequency to another frequency,
Can realize the asynchronous motor soft start, variable frequency speed regulation, improve the operation precision, change the power factor, over current / over voltage / overload protection and other functions.
The use of frequency converter motor is in order to speed, and reduce the starting current.
In order to produce a variable voltage and frequency,
The equipment to the power of the AC power conversion to DC (DC), the process is called rectification.
The direct current (DC) is transformed into alternating current (AC) and its scientific term is "inverter" (inverter).
General inverter is the DC power supply inverter for a certain fixed frequency and a certain voltage of the inverter.
For the inverter as the frequency adjustable, adjustable voltage inverter, we called the inverter.
Inverter output waveform is simulated sine wave,
Is mainly used in three-phase asynchronous motor speed control, and also called frequency governor.
For the variable frequency inverter, which is mainly used in the testing equipment of instrument and meter,
To sort out the waveform, you can output the standard sine wave, called the inverter power supply.
The general inverter is 1520 times inverter price.
The main device called "inverter" because of the voltage or frequency of the inverter device ",
Therefore, the product itself is named "inverter", that is: inverter. "
Max input / output points: 48 points.
Supply voltage: 100 - 240VAC.
Input points: 24 points.
Output points: 24 points.
Output type: relay.
Power consumption: 50VA.
Weight (kg):0.85.
Size (WxHxD) mm:182x90x87.
Note recording function, Component annotation can be recorded in the program register.
Online program editor, online change the program will not lose the working hours or stop production operation.
RUN/STOP switch, running on panel / stop switch easy to operate.
Remote maintenance, remote programming software can monitor, upload or uninstall programs and data via modem communications
Password protection, using a eight digit password to protect your program.
Clock function and hour meter function, all of the PLC FX2N has a real-time clock sttandard FX2N-48MR-ES/UL.
Continuous scanning function, to define the operation cycle for the application of the continuous scan time.
Input filter adjustment function, you can use the input filter to smooth the input signal (in the basic unit x000 to x017).