Frequency Inverter Single-phase 220V class 0.75KW

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Product Description:


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




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





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







Input voltage


Input frequency



Output voltage

0~input voltage

Output frequency


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


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


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


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


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)


Less than 0.5g

Storage temperature


Installation type

Wall-mounted type, floor cabinet type

Cooling mode

Air-forced cooling



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Q:How does frequency converter realize variable frequency speed regulation?
Frequency conversion means changing the power supply frequency.The core of frequency conversion technology is frequency converter. It can automatically adjust the speed of motor operation by changing the frequency of power supply, and change the fixed frequency of 50Hz to 30 - 130 Hz frequency. At the same time, it also makes the voltage range of power supply reach 142 - 270V, and solves the difficult problem of electrical work because of the instability of the grid voltage.
Q:I would like to ask, the inverter in use in the grid is very high?
In the process of using inverter, grid voltage fluctuation requirements is not high, the general phase is to allow + 20% fluctuations, three-phase is allowed 15% fluctuations, so most of the grid voltage can be satisfied, unless it is in the countryside, or more remote areas, the voltage change will exceed the allowable value. In addition, the frequency converter on the power grid harmonics also have requirements, if the harmonic content of more than 20%, will lead to frequency converter misoperation, false alarm, more serious circumstances, will lead to inverter out of control, or damage. However, most of the current harmonics will not happen, unless a large number of individual factories use frequency converters, servo, intermediate frequency furnace, welding machine and other equipment.
Q:Surface grinder can add frequency converter, what are the advantages and disadvantages?
Three frequency converter successfully used in NC machine toolsIn recent years, with the rapid development of the economy, the machine tool industry has also made rapid progress: it is reflected in the wide application of new technology and the obvious improvement of enterprise benefit. At present, the mainstream of consumption in machine tool industry is CNC machine tools. From the domestic and international market demand for CNC machine tools, after the NC machine tool market has the following characteristics: first, the economic CNC machine tools is the mainstream of the future products. Two, using new technology to reduce costs and improve product stability is the key to enterprise survival. Below we in the machine tool drive aspect uses the frequency control speed to say SAJ frequency changer in this profession application situation:
Q:What is called vector converter?
Vectors and vectors are mathematical methods of vector (vector) analysis, both of which are of the same concept
Q:Which country invented the inverter?
There are two kinds of PFC, one is passive PFC (also called passive PFC), and the other is active PFC (also called active PFC). Passive PFC generally uses the inductance compensation method for the phase between the fundamental voltage and current of the AC input is decreased to improve the power factor, but the passive power factor PFC is not very high, can reach 0.7~0.8; PFC by active inductor and capacitor and electronic components, small size, power factor could be very high, but the cost is higher a passive PFC.
Q:How to check the frequency converter is there a problem?
Once the inverter has hardware faults, such as rectifier, inverter circuit and so on. The IGBT module may be damaged, and most of the time it will damage the drive components. The most easily damaged devices are the regulator and the optocoupler. Conversely, components such as capacitance, leakage, breakdown, and optocoupler aging can also cause IGBT modules to burn out or frequency conversion, and output voltage is unbalanced. Check if there is a problem with the drive circuit, and compare the resistance of the trigger terminals when the circuit is not switched on. The voltage waveform at the trigger end can be measured when the power is switched on. However, some inverters are not equipped with modules and can not switch on, when the module P end of the series into a false load, to prevent detection, mistakenly touch the originator or other circuit burned module. In this case, the frequency converter has been seriously damaged (by measuring whether the input and output are short circuited), then there should be special technical personnel maintenance, and generally may not re energized, so as not to expand the scope of failure.
Q:Can not directly through the PLC, ABB converter and Kingview software communication between them?
As long as there are 485 communications can be, the frequency converter manual on the MODBUS protocol, the address of each parameter, in the king view on the link can do, and I hope to adopt.
Q:Where does the sound of the frequency converter come out?
Frequency converter (Variable-frequency, Drive, VFD) is the application of frequency conversion technology and microelectronics technology, by changing the power supply frequency of the motor to control AC motor power control equipment.
Q:Does anyone know how to solve the problem of frequency converter interference?
You can try using the following methods:Solution of interference caused by circuit coupling:The PLC and monitoring equipment are powered by isolated transformers.
Q:Does the number of inverter settings differ from the number of motor poles, and does it affect the use?
Frequency converter has a number of requirements, if the motor is not set by the number of motor parameters, I think there will be the following problems, but may occur, I have not been verified:

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