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 SIEMENS inverter and built-in filter?: There is no built-in filter converter in the price slightly lower, mainly used in the equipment efficiency (power factor) requirements are not high, anti-interference ability requirements are not strict place;The frequency difference with built-in filter is mainly to the requirements of different electrical parameters in specially designed, can improve equipment (power factor), has the good anti-interference ability, prevent the transient surge of inverter module impact, has a good protective effect.

Q:What do you mean by the capacity of the inverter and the capacity of the motor?: Capacity can be understood as active power + reactive power, such as the capacity of 100KVA inverter, is not 100KW motor,

Q:What is frequency conversion? What is the function of frequency converter?: Soft start energy-saving1: Motor hard start a serious impact on the power grid, but also on the power grid capacity is too high, damage to the baffle and valve high current and vibration generated when starting the great of equipment, is extremely detrimental to the life line. While the use of variable frequency energy saving device, using the frequency converter soft start function will start the current starting from zero, will not exceed the maximum rated current, the impact on power loss and the power supply capacity to prolong the service life of equipment and valves. It saves the maintenance cost of equipment.

Q:What are the modes of operation of a frequency converter?: If the inverter is still protected within a specified period of time, the running curve of the starting P should be changed, from the straight line to the S, U, or reverse, S, and U lines. When the motor load is large, a longer start stop time should be adopted, and the operation curve type should be set according to its load characteristics. 41 If the inverter is still running failure, try to increase the maximum current protection value, but can not cancel the protection, there should be at least 10% to 20% of the protection margin. 51, if the frequency converter operation failure or replacement, should be replaced by a larger power converter. 61 If the inverter drives the motor in the start-up process can not reach to the preset speed, there may be two cases:

Q:What is the main function of the frequency converter on the machine tools?: The following example to three inverter in the application of the note for example!CNC machine tool is a kind of flexible and efficient automatic machine tool. It can solve the complicated, precise and small batch processing problem. It is very important to improve the machining accuracy and efficiency of CNC machine tools by rationally controlling the spindle of NC machine tools.

Q:1, the frequency converter to the motor cable should be shielded cable? 2, whether there are specifications?: Do not use shielded cables have several conditions: the first is from the inverter to motor wear long steel pipe laying cable. Second is the frequency converter to the motor cable line routing (cable bridge, cable ditch), there is no analog signal cable or other weak signal cable. Otherwise, from the debug runtime, if the inverter cable cable line motor and analog signal very close, even if the analog signal shielded cable control cable when the motor running is still very obvious interference of analog signals, especially large power motor.

Q:What does the RUN key on the inverter mean? How do you use it?: According to the actual needs of the motor to provide the required power supply voltage, and then to achieve energy saving, speed control purposes, in addition, there are many inverter protection functions, such as over-current, overvoltage, overload protection, etc.. With the continuous improvement of the degree of industrial automation, inverter has also been widely used.

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 does "EPCU" mean in a frequency converter?: But look at your inverter has also been used for some time, if not before, and now appear, it is estimated that the hardware is broken, and manufacturers communicate maintenance!

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.

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