China Best Selling VFD Variable Frequency Drive 3 phase 380V 11KW

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 1 pc

Supply Capability:: 100000 pc/month

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Specifications

1.Advanced control technology
2.Easy to operate

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.

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?: The speed of an asynchronous motor is =60f/p.f, the frequency of alternating current, P is the pole, and the logarithm.60 is the number of seconds in a minute. As can be seen from the form, the number of poles has been fixed. The speed of the asynchronous motor is proportional to the frequency of the power supply. The frequency of the asynchronous motor is changed by changing the frequency of the power supply. This is the principle of variable frequency speed regulation

Q: High-voltage converterGeneral inverterPump frequency converterEngineering frequency converterCould you tell me some frequency converter according to the class?: According to the classification of link Transformation: (1) the AC-DC-AC converter is the first AC into DC rectifier through, and then transformed into the frequency DC voltage adjustable AC inverter, also known as indirect, is currently widely used general-purpose inverter. (2) can be divided into cycloconverter, is directly converted into AC voltage adjustable frequency AC, also known as direct inverter DC power supply according to the classification of properties: (1) the voltage type inverter voltage type inverter is characteristic of DC link energy storage device using a large capacitor load reactive power will be it is to buffer the DC voltage, DC power supply is relatively stable, smaller internal resistance and the equivalent voltage source, so that the voltage type inverter, are often used for load voltage changes in the larger situation. (2) current inverter current type inverter is characterized by large DC link inductance as a storage buffer of reactive power, which changes the current control, the voltage is close to sine wave, because the DC resistance is large, so that the current source converter (current). The characteristics of current source inverter (advantages) can restrain the load current is frequent and rapid changes.

Q: What's the frequency converter for? What does it look like?: 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. 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.

Q: When the inverter is running at full 50HZ, the output voltage decreases and the output current becomes smaller. What is the reason?: However, when the frequency is raised, the current will decrease if the load is not large, especially when the motor is idle. The magnitude of the current is determined by the load. If you can add some load, you will see the current rise. Speaking of principles, can be understood as the motor is a big inductance, when the power frequency increases, the motor impedance Z will become larger, the impedance is large, the voltage is constant, the flow of the current will naturally be small,

Q: Which country invented the inverter?: The frequency converter is not developed by a certain individual, it is the research result of a large number of scientific research workers.The background of inverter technology is the wide demand of AC motor stepless speed regulation. The traditional DC speed regulation technology is limited because of its large size and high failure rate.

Q: What is the difference between frequency converter and servo driver?: The difference between servomotor and frequency conversion motor:Servo system is a closed-loop control system, the inverter usually works in open-loop control, so in terms of speed and accuracy, and can not be compared to the servo drive.The frequency conversion is only one part of the servo, and the servo controls the closed loop precisely on the basis of frequency conversion so as to achieve better results.

Q: Where is the frequency converter used?: In these industries, the use of small and medium power converters more, 220V/380V as its main model. Of course, the auxiliary facilities in these industries still have fans, pumps and inverters, but they don't use much.

Q: 5.5KW frequency converter with 4.5KW deep water pump, pressure regulator by conveying signal to frequency converter start normal, the pressure to reduce the frequency converter after the start, to about 30Hz in order to maintain the pressure about shocks, 30 seconds inverter over-current alarm. Can it be the fault of the frequency converter? How should I check it?: Excessive temperatureIn addition there are high temperature transducer fault, such as the occurrence of a high temperature alarm, after checking the temperature sensor is normal, may be caused by the disturbance, faults can be shielded, also should check the ventilation fan and inverter. For other types of failures, it is better to contact manufacturers for quick and feasible solutions.

Q: The frequency converter works with sharp noises. What's the process of converting electrical energy into mechanical energy?. The mechanism of sound making. Thank you: 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 do you mean by the capacity of the inverter and the capacity of the motor?: Because the motor consumes active power and consumes reactive power, and the reactive power is also occupied, the motor with 70KW can only be usedThe power is known to everyone

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