China Best Selling VFD Frequency Drive Three phase 380V

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Product Description:

Specifications

1.220V Single Phase Variable Frequency Drive 2.2KW
2.Advanced control technology
3.Easy to operate

    220V Single  Phase Variable Frequency Drive 2.2KW

 

General

 

CNBM  frequency  inverter is a high-quality, multi-function,

low-noise variable frequency drive which is designed, developed and manufactured according to international standards.

It can meet different needs of industrial conditions.

The inverter applies advanced control technology of space voltage vector PWM, with functions of constant voltage control, power-off restart, dead zone compensation, automatic torque compensation, online modification parameter, high-speed impulse input, simple PLC and traverse.

 

 

Product Name:CMAX-VCG15/P18.5T3 ~ CMAX-VCG18.5/P22T3

 

Application

 

 

Textile: coarse spinner, spinning frame, wrap-knitting machine, loom, knitting machine, silk-spinning machine, etc.

 

Plastic: extruder, hauling machine, decorating machine, etc.

 

Pharmacy: mixer, roaster, etc.

 

Woodworking: engraving machine, sander, veneer peeling lathe, etc.

 

Papermaking: single type papermaking machine, etc.

 

Machine tool: non-core grinding machine, optical lens grinding machine, cutting mill, etc.

 

Printing: cloth-washing machine, dye vat, etc.

 

Cement: feeder, air blower, rotary furnace, mixer, crusher, etc

 

Fan and pump: kinds of fans, blowers and pumps

 

 

Specification

Item

Specification

Input

Input voltage

220/380V±15%

Input frequency

47~63Hz

Output

Output voltage

0~input voltage

Output frequency

0~600Hz

Peripheral interface characteristics

Programmable digital input

4 switch input, 1 high-speed impulse input

Programmable analog input

AI1: 0~10V input

AI2: 0~10V input or 0~20mA input,

Programmable open collector

output

2 Output

(3.7kW and above: 1 Open collector output)

Relay Output

1 Output (3.7kW and above: 2 Relay output)

Analog output

2 Output, one is 0~10V,

another is 0~20mA or 0~10V

Keypad

Display:5-digit 8-section LED (Red), 2 indicators; parameter setting: 8 keys (including multi-function hot key ), 1 potentiometer

Technical performance characteristics

Control mode

All digital space voltage vector SVPWM algorism

Overload capacity

G purpose: 150% rated current 60s

P purpose: 120% rated current 60s

Speed ratio

1: 100

Carrier frequency

1.0~10.0kHz

Torque compensation

Linear, multi-point, 1.3th power, 1.7th  power, 2.0th power reduced torque; Compensation voltage range: automatic compensation and manual compensation 0.1~10%

Automatic voltage adjustment

It can automatically maintain output voltage constant when grid voltage fluctuates.

Automatic current adjustment

When the current is over current limit, under clocking automatically limits output current.

Function characteristics

Frequency setting mode

Keypad digital analog input, keypad potentiometer, impulse frequency, communication, multi-step speed and simple PLC, PID setting and so on, switch-over of setting modes.

Simple PLC,

multi-step speed control

16-step speed control

Special function

Traverse control, length control, time control

QUICK/JOG key

User-defined multi-function hot key

Protection function

Over-current, Over voltage, under-voltage, over-heat, phase failure, over-load and motor over-load

Working condition

Installation site

Indoor, altitude of less than 1km, dust free, non-corrosive gases, no direct sunlight

Application environment

-10°C~+40°C, 20~90%RH (no dew)

Vibration

Less than 0.5g

Storage temperature

-25°C~+65°C

Installation type

Wall-mounted type, floor cabinet type

Cooling mode

Air-forced cooling

 

 

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Q:What is the main function of the frequency converter on the machine tools?
The following example to three inverter in the application of the note for example!CNC machine tool is a kind of flexible and efficient automatic machine tool. It can solve the complicated, precise and small batch processing problem. It is very important to improve the machining accuracy and efficiency of CNC machine tools by rationally controlling the spindle of NC machine tools.
Q:How does the frequency converter change the voltage and change the speed of the motor?
The inverter does not change the voltage to adjust the speed of the motor. Under the premise of constant voltage, the frequency of the alternating current is changed to adjust the speed of the motor. Typically, at the frequency of 50Hz, the synchronous speed of the quadrupole motor is 1500 rpm, and if the frequency is increased to 60Hz, the synchronous speed should be 1800 rpm; if it falls to 40Hz, the synchronous speed should be 1200 rpm. In the limited frequency range, the power is constant, the higher the speed, the smaller the torque, the lower the speed, the greater the torque. Formula for speed calculation (Rev / min):60 seconds * / log polar frequency. The middle pole of a pair is 2 poles of 1 pairs, i.e., the quadrupole motor is 2 pairs of magnetic poles.The frequency of the converter is stepless, continuous and adjustable, so the speed of the motor is continuously adjustable in a certain range.
Q:What's the frequency converter for? What does it look like?
The inverter is mainly used in industrial equipment, such as power plants, water plants, water supply equipment, large pumping station, it is basically a cuboid, a digital display control panel; and in the English show types into the universal type, fan pump type, vector control, different types should be used in different working conditions, voltage grade from 220V-10 million volts, currently has the localization.
Q:Knowledge, principle and operation method of frequency converter.
The history of the principle of frequency converter:Frequency conversion technology is born with the need of AC motor stepless speed regulation. After 1960s, the power electronic devices through SCR (SCR), GTO (gate turn off thyristor (BJT), bipolar power transistor), MOSFET (metal oxide semiconductor field effect transistor), SIT (static induction transistor), SITH (static induction thyristor (MGT), MOS control MCT (MOS) transistor, thyristor controlled), IGBT (insulated gate bipolar transistor), HVIGBT (high voltage insulated gate bipolar transistor) device to update the development process, to promote the continuous development of power electronics technology (note that because of this, so the inverter is in this background). The beginning of 1970s, PWM VVVF (PWMVVVF) control has aroused great attention. In 1980s, PWM mode optimization, as the core of frequency conversion technology, attracted people's interest and obtained many optimization models, among which the saddle wave PWM model was the best. Since the latter half of the 1980s, the VVVF inverters in developed countries such as the United States, Japan, Germany, Britain and other developed countries have already been put into the market and have been widely used. As to understand the principles of various types of frequency converter, you might as well look at the four changes in the frequency control mode from the simple to the complex.
Q:Schneider 303 4KW frequency converter F 013 trouble shooting method
According to the ATV303 user manual,The F013 is a motor overload fault and is triggered by excessive motor current.Suggest:1. monitor the running condition of the converter with the panel (whether the actual running current exceeds the limit)2. check the motor thermal protection settings and motor load (such as motor drive chain bearings, reducer, etc.).
Q:What does "EPCU" mean in a frequency converter?
But look at your inverter has also been used for some time, if not before, and now appear, it is estimated that the hardware is broken, and manufacturers communicate maintenance!
Q:Why does the frequency change when the frequency converter regulates the frequency?
Because the product of three-phase asynchronous motor stator phase voltage and frequency and flux is proportional to the frequency when the downward adjustment, if the sustain voltage is constant, the flux must be increased, this will cause the main magnetic saturation excitation current passing, the surge in motor damage.As a result, the voltage is usually adjusted down proportionally as the frequency is lowered down.However, when adjusting the frequency, the voltage is not adjustable in order to avoid the excessive voltage damage of the motor. Therefore, in the use of frequency converter overclocking motor, the magnetic flux will decline, the motor output torque characteristics will move to the left.
Q:What is the main harmonic produced by a transducer? How about the degree?
To reduce the influence of harmonics, various measures can be taken, but for the inverter, the main circuit is to install an AC reactor.The input side of the inverter generates the harmonic mechanism: for the inverter, as long as there is a rectifier circuit on the power supply side, it will produce harmonics caused by nonlinearity. Based on the three-phase bridge rectifier circuit for example, AC grid voltage for a sine wave, square wave AC input current waveform, the waveform, according to Fourier series can be decomposed into fundamental and harmonics, usually containing 6m + 1 (m=1,2) harmonics, the harmonics in power grid. A single fundamental wave, combined with several harmonic waves, is called an abnormal wave
Q:What does the RUN key on the inverter mean? How do you use it?
According to the actual needs of the motor to provide the required power supply voltage, and then to achieve energy saving, speed control purposes, in addition, there are many inverter protection functions, such as over-current, overvoltage, overload protection, etc.. With the continuous improvement of the degree of industrial automation, inverter has also been widely used.
Q:Frequency converter, fault, contact action
The frequency converter has 1-2 relay outputs, that is, digital output. By default, most of the output of the fault is the relay. The general definition of the 2 relays is defined as a running output and a fault output.

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