China VFD Frequency Drive 3 phase 220V 380V

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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.






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:What is the traction frequency converter for electric cars?
The main advantage of inverter products in electric vehicles lies in:1, reliability: three heavy over-current protection, three heavy voltage protection, three heavy drive protection, ensure the motor controller reliable and stable operation.2, the control strategy is superior: the motor controller adopts vector control technology, which has the advantages of superior performance and high reliability. It is suitable for AC asynchronous or permanent magnet synchronous motors;3, the large capacity output capability: the output end of the motor with no gearbox or reducer, greatly reduces the noise, fault point and mechanical drive system control mode is simple, cost saving, high reliability, good stability of vehicle operation;4, the power performance is good: acceleration performance (0 ~ 15 seconds 50km/h), more good economic performance (0.9 degrees /km @40km/h);5, fault diagnosis and treatment: in order to improve the reliability of the whole vehicle, motor control system must have the function of fault diagnosis, and can save the trouble, convenient after analysis, also through the diagnostic ports can be implemented online debugging motor controller and recording various operating curve facilitates optimization of the whole control system;6, efficient braking energy recovery: give full play to the advantages of pure electric vehicle powertrain system, improve energy utilization, motor control system must have the brake energy recovery function.7, simple: motor controller quality is reliable, and light weight, easy to layout, wiring, maintenance convenience and so on, the industrialization prospect is very good.
Q:What's the difference between universal inverter and fan pump converter?
Fan and pump load:In a variety of fans, pumps, oil pumps, with the rotation of the impeller, the air or liquid within a certain speed range of resistance is roughly proportional to the speed of the 2 side of the n. As the speed decreases, the torque decreases by 2 times the speed. The power required for this kind of load is proportional to the 3 power of the velocity. When the required air volume and flow rate are reduced, the frequency and speed of air flow can be regulated by the frequency converter, so the energy can be saved substantially. Because the power required at high speed increases with the speed, and is proportional to the speed of the three side, so the fan and pump load should not be used in the ultra power frequency operation
Q:What is the difference between inverter energy consumption braking and motor energy consumption braking?
Energy consumption braking is to rely solely on the motor to consume kinetic energy to achieve the purpose of parking. Therefore, the braking effect and accuracy are not ideal. In some occasions requiring short braking time and good braking effect, this brake is not normally used. Such as lifting machinery, its operation is characterized by low motor speed, frequent start, stop and reverse, and drag the weight of the operation. In order to achieve accurate and flexible control, the motor is often in a state of braking, and requires large braking torque. The energy consumption brake can not meet the above requirements. Therefore, lifting machinery generally adopts reverse braking, and requires mechanical braking, in case the weight is slipped during running or losing power.
Q:Delta frequency converter VFD-M series multi section speed command problem
Using PLC to analog converter control input frequency up to speed off from the requirements of the inverter frequency source set P-00 speed by 00 digital operation panel to analog frequency PLC given 0102 given frequency parameters can choose the set of 01 or 02 and the period of quick closing even P-17P-19 parameters affect analog control
Q:What is called vector converter?
The vector is what we (the mainland) says. The vector is generally used in the literature of Hong Kong and Taiwan. The meaning is roughly the same as that of Bush and bush. Vector control is mainly a concept of decoupling of motor models
Q:What does Ro1c mean on a converter?
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. The frequency converter is mainly composed of rectifier (AC DC converter), filter, inverter (DC AC converter), brake unit, drive unit, detection unit, micro processing unit and so on.
Q:What is the difference between a converter and a transformer in Yu Na?
The frequency changer changes the frequency of alternating current. The transformer changes the voltage.Take a closer look at the materials on the electrician.
Q:Frequency converter closed loop control, frequency converter must use PG card?
Mainly depends on what you want closed loopIf it is speed closed-loop, with PLC, you can not use PG card, direct PLC acquisition speed as a negative feedback signalIf it is a closed loop of ordinary process variables, such as pressure, temperature, etc.Neither PLC nor PG cards are requiredThe PG card is mainly used in the speed closed loop of the converter to collect signals
Q:Where does the sound of the frequency converter come out?
The input is AC 50Hz sine wave output frequency variable, but still want to be sinusoidal. But due to various reasons such as the efficiency and control it is not directly output sine wave. It is the original inverter with high frequency sine wave modulation is Fang Bo, will be on the radio. As the modulation principle this is also called the square wave carrier. Between hundreds to thousands of HZ. In the range of our hearing. When it can be produced by mechanical vibration equipment such as reactors will sound when conducting ]. This is the voice we heard.The frequency of electromagnetic waves is high, that is, the corresponding mechanical vibration can occur, and it is also the frequency that the human ear can not hear, so it can not be heard
Q:What is the working principle of a three phase AC asynchronous motor inverter?
I. operating temperature. The internal electronic components of high power, extremely easy to be influenced by the working temperature of the product, the general requirements for 0 ~ 55 degrees, but in order to ensure the safe and reliable work, use should be considered under the best control in 40 DEG C. In the control box, the inverter shall be installed on the upper part of the box, and strictly comply with the installation requirements in the product specification. Absolutely no heating element or easy heating element shall be installed on the bottom of the converter.

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