Variable Frequency Drive

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Description Of Variable Frequency Drive

Variable Frequency Drive 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

Features Of Variable Frequency Drive

1).Adopts 16 bit microprocessor, sine wave PWM control

2).Automatic torque ascension and automatic sliding compensation function

3).Output frequency 0.1-400 Hz

4).8 period of speed setting and 7 period can be running the program

5).Low noise, carrier frequency can from 1 kHz-15 kHz adjustment

6).Two paragraphs Acceleration and deceleration time and two segments of the S Curve slow and deceleration

7).Simulation frequency set acceptable 0-10 VDC, 4-20 mA

8).The built-in serial communication interface RS-485(baud rate can reach 38400)

9).Save energy running and automatic voltage stabilizing section function (AVR)

10).Adjustable V/F curve Acceleration and automatic and deceleration function

11).Simple vector control and built-in PID control, and the simple positioning function

12).Sleep/wake up function and zero velocity keep function

Structure Of Variable Frequency Drive

Four Side Moulder

Application Of Variable Frequency Drive

★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

Four Side Moulder

Performance Of Variable Frequency Drive

Item		Specification
Input	Rated voltage	T4 series: Three phase 380v, ±15%
	Frequency	S/T2 series: Three/single phase 220V, ±15%
		50/60Hz ±5%
Output	Voltage	T4 series: Three phase 0-380V
	Frequency	S/T2 series: Three phase 0~220v
		0-400Hz
	Overload ability	150% rated current for 30s; 180% rated current for 1s;
Dissipation	Cooling type	Forced Cooling
	Temperature protection	Heatsink temperature >85℃ trip protection against overheat
	Fan control	Heatsink temperature> 50℃, fan forced operation, frequency inverter continue work
Control	Control mode	Open-loop vector control, V/F control
Performance	Start torque	Open-loop vector control: 0.5Hz 180%;
		VF control: 0.5Hz 150%
	Speed range	Open-loop vector control:1:150;
		VF control：1:100
	Speed control precision	Open-loop vector control: ±0.2%;
		VF control：±0.5%
Function	Channel of operation command	Keyboard control，terminal control，communication control
	Start mode	Direct start, DC injection braking before start, speed tracking before start
	DC injection braking	Start DC injection braking, stop DC injection braking
	Dynamic braking	Built-in braking unit
	Frequency source choice	Keyboard digital frequency setting, analog AVI setting
		PID control setting, telecommunications setting
	Frequency resolution	Keypad setting:0.01Hz; Analog setting: 0.1%
	Carrier frequency	1Khz~12Khz,
	Acc/Dec time	0.1~6000.0s or 0.01～600.00s
Signal	Analog input	AVI:0~10V
		ACI:4~20mA
		Keyboard potentiometer input: 0~10V
	Analog output	AFM:0~10V or 0~20mA, Select through JP1 jumper
	Digital input	A total of 28 kinds of function could be selected from S0 ~S5.
	Digital output	1 channel open collector output(MO1-MCM)
		1 channel relay output( TA-TC normally open, TB-TC normally closed;
Communication Port	Communication protocol	Based on RS485 hardware, support standard MODBUS protocol.
Display Functions	Four digital tube display	Can monitor the operation state of frequency inverter flexibly and conveniently.
Installation	Humidity	Less than 90%RH
		condensation
	Vibration	Less than0.6G
	Elevation	0~1000m, reduce the rated specification 10% when lift 1000m for each.
	Storage temperature	-20～60℃
Structure	Defend degree	IP20

Q:The laptop power adapter is hot: Almost all of the notebook adapters have this problem, you do not have to worry about this. But do not know you can not tolerate what is the degree, if it is so hot that the adapter has a deformation, then it is recommended to immediately stop using, to the sale to the new

Q:Will the asynchronous motor pole change the number of speed control can also be combined with the frequency converter: As you said the asynchronous motor after a very logarithmic change can be achieved on the speed of the "coarse tune", and then use the inverter is equivalent to add a "fine tune" device, but it seems a bit expensive, but to To see what you are on the occasion of the worthless.

Q:How do I select a drive? Which brand is better: ?11, the inverter drives the synchronous motor, compared with the power frequency power regulator, reduce the output capacity of 10% to 20%, the inverter's continuous output current is greater than the synchronous motor rated current and synchronous pull the current value of the unit value product. ????12, for the compressor, vibration and other torque fluctuations in the load and the hydraulic pump and other peak load case, if the motor in accordance with the rated current or power value of the inverter, then there may be due to peak current over-current protection Action phenomenon. Therefore, you should understand the frequency of the operation of the situation, select the maximum current than the maximum current output of the inverter. When the inverter drives the submersible pump motor, the rated current is greater than the rated current of the submersible pump motor because the rated current of the submersible pump motor is greater than the rated current of the normal motor. ????13, when the inverter control Roots blower, because of its large starting current, so select the inverter must pay attention to whether the capacity of the inverter is large enough. ????14, select the inverter, be sure to pay attention to whether the protection level with the scene to match. Otherwise the scene of dust, water vapor will affect the long-term operation of the inverter. ????15, single-phase motor is not suitable for inverter drive. Recommended Ampang letter converter, domestic brand, quality and stability, first-class service, trustworthy!

Q:ASUS power adapter Acer can use it: See whether the power adapter is suitable for notebook use, the following three conditions for reference: 1. The output voltage of the adapter is the same as that of the notebook.

Q:Can the four motors be tuned to 2900 rpm?: Will be affected, under normal circumstances overclocking is possible, but speed is not possible.

Q:Laptop power adapter problem: First, that is called the transformer, not called the charger, not with you bite the word, but you according to the charger to Taobao search, basically one hundred percent are not found.

Q:Laptop warranty period is not over, the power adapter is broken, repair money?: Do not money, first to see where the dealer, if there is no answer, went directly to the repair station, with a good warranty card and other things, that reason you can! The

Q:How is the notebook with a power adapter?: The safest option is to choose the same type of notebook power adapter. When in some cases (the original adapter is too expensive or not available), you can select the operating parameters and output connectors and the original adapter.

Q:Will the 75KW4 pole motor can be used to increase the speed of the inverter?: can! The output frequency of the inverter is higher than 50HZ, the speed of the motor is higher than the rated speed. In a certain range, the higher the frequency of the inverter, the faster the motor speed.

Q:Whether the inverter can control the start and stop of the horizontal monopole centrifugal pump: Hi, the inverter control is no problem. You need to select the inverter by the load characteristics of the centrifugal pump, consider: Centrifugal pump rated working current, overload capacity, parking whether there is emergency stop request. I used the inverter to control the horizontal centrifuge some time ago.

We are a professional inverter manufacturer integrating R&D, production and sales. With an experienced R&D and production team and sophisticated production lines, our company has become a domestic first-class inverter manufacturer by virtue of advanced technology, excellent quality, scientific management and perfect service

1. Manufacturer Overview
Location	Zibo, China
Year Established	2004
Annual Output Value	Below US$1 Million
Main Markets	Middle-East America; Mid East; Northern Europ; Africa; Southeast Asia
Company Certifications	CE；ISO

2. Manufacturer Certificates
a) Certification Name
Range
Reference
Validity Period

3. Manufacturer Capability
a)Trade Capacity
Nearest Port	Qingdao
Export Percentage	1% - 10%
No.of Employees in Trade Department	500-999 People
Language Spoken:	English; Chinese
b)Factory Information
Factory Size:	Above 50,000 square meters
No. of Production Lines	Above 8
Contract Manufacturing
Product Price Range	High; Average