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: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:What does "frequency" in household appliances mean?: The air conditioner use frequency, enlarge the working range of the compressor, the compressor does not require intermittent running can be realized in cold and warm control, to reduce power consumption due to temperature changes, eliminate discomfort. In recent years, the new type of air conditioner has adopted brushless DC motor to realize variable frequency speed regulation, and its energy-saving effect is about 10% - 15% higher than that of AC asynchronous motor frequency conversion. In order to further improve the efficiency of the device,

Q:There is much dust and moisture in my workshop. Many brands are not durable.: The quality is very good.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:How does the frequency converter change the voltage and change the speed of the motor?: Change the motor frequency converter, V/F control mode in changing the motor frequency at the same time according to the proportion of changing the voltage of the motor, the speed and frequency of the motor is proportional to the relationship, so it changes the motor speed.

Q:A control panel I received a photoelectric switch, through the 232 interface connected to the computer, control with a 220V power supply board, computer and inverter when the inverter after the start of the photoelectric switch either do not work or turn off the flash chaos, frequency converter or 232 line open photoelectric switch will be back to normal work. In addition, when the photoelectric switch is powered separately, if the ground wire is connected to the control board, the photoelectric switch does not work. Excuse me, is this interference from the power cord? How to solve?: A) PE inverter main circuit terminals (E, G) must be grounded, the motor can be grounded and the inverter with the common ground, but not with other equipment, must play ground pile, and the ground should take place far away from electrical equipment. At the same time, the cross-sectional area of the grounding wire of the converter shall be no less than 4mm2, and the length shall be within 20m.(b) in the ground wire of other electromechanical equipment, the protective earthing and the work earthing shall be separately provided with grounding electrodes, and finally shall be imported to the electrical position of the distribution cabinet. The shield of the control signal and the shielding of the main circuit wire shall also be separately provided with earth electrodes, and finally shall be incorporated into the electrical junction of the distribution cabinet.

Q:What does "G" and "P" mean in the converter model?: General inverter said, "G" and "P" type refers to the inverter general type and fan pump difference, G type inverter applies to the general machinery class load, and P type is used in the wind or water pump.

Q:What are the benefits of installing economizer in industrial enterprises?: The input and output filter and the DC reactor in the economizer can prevent the harmonic produced by the converter and cause the pollution of the power grid and the surrounding electricity environment.3 、 no disturbance power supply / electricity saving conversion system is beneficial to ensure that the customer load can be put into use quickly when the machine fails, and the normal production of the customer will not be affected. At the same time, the protection function of the economizer is perfect, and it has the protection function of over voltage, under voltage, over current, over temperature and surge resistance.4, reactive power compensation, improve the power factor of the system, reduce reactive power loss.

Q:The frequency converter is in use suddenly the speed reduces, then the debugging is out of control, how to do?: The power over voltage means that the DC bus voltage exceeds the rated value because the voltage of the supply is too high. Now, most inverters have an input voltage of up to 460V, so the overvoltage caused by power supply is extremely rare. The main issue discussed in this paper is the regenerative overvoltage. The regenerative overvoltage mainly has the following reasons: when the big GD2 (flywheel moment) load slows down, the inverter deceleration time is set too short;

Q:Surface grinder can add frequency converter, what are the advantages and disadvantages?: The use of variable frequency speed control, you can simplify the gear, gearbox and other complex mechanical drag mechanism, high degree of automation, simple operation, easy maintenance.The frequency converter adopts the external terminal control, and the DC 0-10V signal issued by the numerical control system is fed into the frequency converter through the VI ACM terminal of the frequency converter, and the digital setting speed is controlled to the analog variable frequency output. The motor speed is controlled by the size of the voltage signal produced by the numerical control system.The frequency converter has voltage (DC0 - 10V), current analog input interface, and can be well matched with the control signal of CNC system.

Q:How does the PLC process the inverter output signal?: 1. The analog signals of the converter (such as the 4~20mA signal) are received in the analog input module of the PLC (for example, the EM235 module)2, the input signal processing (32000 digital quantity into 50HZ frequency signal)3. Compare the resulting frequency signals with their own internal settings

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