China VFD Frequency Inverter

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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	Input frequency	47~63Hz
Output	Output voltage	0~input voltage
Output	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, 1.7^th power, 2.0^th 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

Q: What is the difference between a frequency converter and a servo controller?: Servo system: 1 servo drives in the premise of the development of frequency conversion technology, the current loop in the internal drive, speed loop and position loop (inverter without the ring) of algorithm operation and control technology is more accurate than the general frequency, but also in the function than the traditional servo many powerful, the main point can accurate position control. To control the speed and position of the pulse sequence controller sends the (of course there are also some integrated servo control unit or by bus communication way directly to set the parameters of position and velocity in the drive), drive the internal algorithm and faster and more accurate calculation and better performance of electronic devices to be more superior to converter. 2, motor servo motor of the material, structure and machining process is much higher than that of the AC motor drive inverter (general AC motor or constant torque, constant power and other types of motor), that is to say when the power driver output current and voltage and frequency change quickly, the servo motor can generate action response according to the change power changes, response and anti overload capacity is much higher than that of AC motor inverter drive motor, fundamental serious differences is two different performance. That is to say, not the inverter can not change the power supply signal, but the motor itself can not respond, so in the frequency of the internal algorithm settings, in order to protect the motor to do the corresponding overload settings. Of course, even if the output power of the inverter is not limited, some high-performance inverters can directly drive the servo motor!

Q: The functions of frequency converter and UPS are similar, especially the power frequency UPS?: Frequency converter is the application of frequency conversion technology and micro electronics 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. Inverter by internal IGBT drive voltage and frequency off to adjust the output power, the power supply voltage required to provide according to the actual needs of the motor, so as to achieve the purpose of speed, energy saving, in addition, there are a lot of protection drive, such as over-current, over-voltage, overload protection and so on. With the continuous improvement of the degree of industrial automation, inverter has also been widely used.UPS is an uninterruptible power supply, including an energy storage device, a rectifier, inverter as the main component of the regulator, frequency stabilized AC power supply. The main use of battery energy storage power supply device to provide uninterrupted computer / server, storage equipment, network equipment, computer communication network system and industrial control system, need continuous operation of industrial equipment in power outages. When the power input is normal, UPS electric voltage supplied to the load, the UPS is an AC electric regulator, it is also to the storage device such as a battery charging; when the power interruption (outage), UPS immediately to the storage device (such as batteries or fly wheel the electric energy storage system), continue to supply alternating current to the load by the method of inverse transformation, the load to maintain normal working and protect the load of software and hardware is not damaged.

Q: Today, I was asked the question, and I also brought it to you to share the following Oh!: The frequency converter is the electric energy control device that transforms the power frequency power to another frequency by the on-off function of the power semiconductor device. We now use the converter mainly adopts the AC-DC-AC mode (VVVF inverter or variable frequency vector control), the first AC power into DC power supply through the rectifier, then the AC power into DC power supply frequency and voltage can be controlled by the supply of electric motive. The frequency converter circuit is usually composed of rectifier, intermediate DC link, inverter and control of 4 parts. The rectifier is a three-phase bridge controlled rectifier, and the inverter is IGBT three-phase bridge inverter, and the output is PWM waveform. The intermediate DC link is filter, DC energy storage and buffer reactive power.

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: Why do you install these things? Our factory has 380220 points. Then we plant in addition to high voltage motor, the other are 380 of the motor, then what's the use of these two things?: Asynchronous motor is the torque between the current flowing through the motor flux and rotor as a result of the interaction, at rated frequency, but only if the voltage will reduce the frequency, then the magnetic flux on a large magnetic circuit saturation, the motor will be seriously burned. Therefore, the frequency and voltage should be changed proportionally, that is to say, to change the frequency, to control the output voltage of the converter at the same time, to keep the flux of the motor to be certain, and to avoid the occurrence of the weakening of the magnetic flux and the saturation of the magnetic flux. This control mode is mostly used in fans, pumps and energy saving inverters. The frequency changer changes the voltage, must change the frequency

Q: What are the differences between the two quadrant and the four quadrant of the inverter?: For a motor alone, the so-called four quadrant refers to its operating mechanical characteristics curve, on the mathematical axis of the four quadrants can run. The first quadrant is in the positive electric state, the second quadrant feedback braking state, the third quadrant reversing electric state, and the fourth quadrant reverse braking state. A frequency converter that makes the motor work in the four quadrant is called the four quadrant converter.

Q: Can 220V use frequency converter to drive three-phase motor with 380V?: If it is a small power motor can be connected into angular motor then a three-phase inverter output 220 single-phase input 220 will be able to connect, as mentioned above can boost its output voltage frequency is equal to the maximum input voltage, so the 380 can not directly connected with the motor, but if you meet the above conditions can be considered,

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:

Q: What are the basis of the frequency converter to choose?: According to the applied industry.The application of inverter industry RGB field is widely used, the main products are: SAJ-S simple ultra small, SAJ-M mini, SAJ-G universal, SAJ-F type, SAJ-P type wind pump, SAJ-Y injection molding machine type, SAJ-Z type, heavy machine industry, naked personalized products, high performance vector inverter S350.

Q: Delta inverter fault output which parameter is set?: Parameter settings, class failures, frequency converter in use, whether it can meet the requirements of the transmission system, the parameter settings of the inverter is very important, if the parameter is not set correctly, it will cause the inverter not to work properly.

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