China VFD Frequency Drive 3 phase 220V 380V

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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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VFD Frequency Inverter 3 phase input 3 phase output 220V /380V

China Best Selling VFD Frequency Drive 3 phase 220V 380V

China Best Selling VFD Frequency Drive 3 phase 380V 15kw

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.

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: Frequency converter, fault, contact action: The frequency converter has 1-2 relay outputs, that is, digital output. By default, most of the output of the fault is the relay. The general definition of the 2 relays is defined as a running output and a fault output.

Q: Application of ABB frequency converter: What are the differences between PWM and PAM?PWM is English Pulse Width Modulation (pulse width modulation), according to the law must change the pulse of the pulse width in a tone adjustment output and waveform.PAM is the abbreviation of Pulse Amplitude Modulation (pulse amplitude modulation) in English. It is a modulation way to change the pulse amplitude of pulse column according to a certain rule to regulate the output value and waveform.

Q: Which country invented the inverter?: PC power supply using bridge rectifier, capacitor filter circuit will make the traditional AC input current waveform distortion, inject a large amount of high harmonics to the power grid, so the grid side power factor is not high, only about 0.6, and caused serious harmonic pollution and interference on the power grid and other electrical equipment. As early as the early 80s, the harm caused by higher harmonic currents caused by such devices has attracted much attention. In 1982, the International Electrotechnical Commission formulated the IEC55 2 specification (revised standard harmonic limit later is IEC1000 - 3 - 2), the power electronic technology, many workers began to harmonic filtering and power factor correction (PFC) technology research. The introduction of PFC circuit in electronic power supply can greatly improve the utilization efficiency of electric energy.

Q: 1, the frequency converter to the motor cable should be shielded cable? 2, whether there are specifications?: 1, there are no special specifications, but each oneThe manual must have all the precautions required for good shielding.When the output of high frequency voltage pulse, the higher the frequency, the greater the external radiation interference. UseThe line is mostly blockedExternal interference.2, if there is no other equipment around (usually 5 meters as the boundary), then the shielded line can not be used, because there is no external interference.

Q: What is the function of a frequency converter on an electric motor?: Through the frequency converter, the motor can be adjusted speed, so as to obtain the speed required by itself, and also can reduce the motor running current and save energy and reduce consumption.

Q: How does frequency converter realize variable frequency speed regulation?: The technique of alternating current control by changing the frequency of alternating current is called frequency conversion technology. The frequency converter usually uses the on-off function of the power semiconductor device to change the power frequency power to another frequency energy control device.

Q: Today, I was asked the question, and I also brought it to you to share the following Oh!: The inverter (power converter, Power Inverter) is a kind of DC12V can be converted to DC and AC220V AC power the same, for general use of electrical appliances, power converter with a convenient car.

Q: How do you understand the ramp up (descent) time of the inverter? Thank you!: That is, the frequency converter starts from the time it takes to set the upper limit. It can be said to be the acceleration time, which can be set in the parameters of the converter. Then, the deceleration time is just the opposite.

Q: What is the over-current of the inverter?: When the load is not stable, recommend the use of DTC DTC control mode, because the speed is very fast, the actual torque and flux generated every 25 microseconds a set of precise value after comparator and output torque of the motor flux comparator, optimized pulse selector switch inverter decided to best position, such a system over current. In addition, the speed loop adaptive (AUTOTUNE) will automatically adjust the PID parameters, so that the inverter output motor current is stable.

Q: What is the working principle of a three phase AC asynchronous motor inverter?: Distance determination of frequency converter and motor, cable and wiring method;The distance between the I. converter and the motor should be as short as possible. This reduces the capacitance of the cable to the ground and reduces the interference of the transmitter.II. control cables use shielded cables, power cables use shielded cables, or from frequency converters to motors, all shielded by threading tubes.The III. motor cable shall be independent of other cables, with a minimum distance of 500mm. At the same time, it is necessary to avoid the long distance parallel wire between the motor cable and other cables, so as to reduce the electromagnetic interference caused by the rapid change of the output voltage of the inverter. If the control cable and the power cable cross, as far as possible so that they cross at 90 degrees angle. The analog signal line associated with the inverter is separated from the main return line, even in the control cabinet.IV. and inverter related analog signal line is best to use shielded twisted pair, power cable shielded shielded three core cable (its specifications than ordinary motor cable large files) or comply with the frequency converter user manual.

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