High Performance 7.5KW AC Motor Drive

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Description Of High Performance 7.5KW AC Motor Drive  

High Performance 7.5KW AC Motor 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 High Performance 7.5KW AC Motor 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 High Performance 7.5KW AC Motor Drive

 

AC Motor Drive

 

Application Of High Performance 7.5KW AC Motor 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

 

AC Motor Drive

 

Performance Of High Performance 7.5KW AC Motor Drive

 

ItemSpecification
InputRated voltageT4 series: Three phase 380v, ±15%
Frequency S/T2 series: Three/single phase 220V, ±15%
50/60Hz  ±5%
OutputVoltageT4 series: Three phase 0-380V
FrequencyS/T2 series: Three phase 0~220v
0-400Hz
Overload ability150% rated current for 30s; 180% rated current for 1s;
DissipationCooling type Forced Cooling
Temperature protection Heatsink temperature >85℃ trip protection against overheat
Fan controlHeatsink temperature> 50℃, fan forced operation, frequency inverter continue work
ControlControl modeOpen-loop vector control, V/F control
PerformanceStart torqueOpen-loop vector control: 0.5Hz 180%; 
VF control: 0.5Hz 150%
Speed rangeOpen-loop vector control:1:150; 
VF control:1:100
Speed control precisionOpen-loop vector control: ±0.2%; 
VF control:±0.5%
FunctionChannel of operation commandKeyboard control,terminal control,communication control
Start modeDirect start, DC injection braking before start, speed tracking before start
DC injection brakingStart DC injection braking, stop DC injection braking
Dynamic brakingBuilt-in braking unit
Frequency source choiceKeyboard digital frequency setting, analog AVI setting
PID control setting, telecommunications setting
Frequency resolutionKeypad setting:0.01Hz; Analog setting: 0.1%
Carrier frequency1Khz~12Khz,
Acc/Dec time0.1~6000.0s or 0.01~600.00s
SignalAnalog inputAVI:0~10V
ACI:4~20mA 
Keyboard potentiometer input: 0~10V
Analog outputAFM:0~10V or 0~20mA, Select through JP1 jumper
Digital inputA total of 28 kinds of function could be selected from S0 ~S5.
Digital output1 channel open collector output(MO1-MCM)
1 channel relay output( TA-TC normally open, TB-TC normally closed;
Communication PortCommunication protocolBased on RS485 hardware, support standard MODBUS protocol. 
Display FunctionsFour digital tube displayCan monitor the operation state of frequency inverter flexibly and conveniently.
Installation                                HumidityLess than 90%RH
condensation
VibrationLess than0.6G
Elevation0~1000m, reduce the rated specification 10% when lift 1000m for each. 
Storage temperature-20~60℃          
StructureDefend degreeIP20

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Q:What is the principle and implementation of the inverter?
AC inverter principle. It is the first AC current will be converted into direct current, and then use the electronic components of the DC switch. AC power. General power of the larger inverter with a thyristor. And set an adjustable frequency device. The frequency in a certain range adjustable . Used to control the number of revolutions of the motor. The number of revolutions can be adjusted within a certain range. The frequency converter is widely used in the speed regulation of AC motor. Frequency control technology is an important development direction of modern power transmission technology, with power electronics Technology development, exchange frequency conversion technology from theory to practice gradually mature. Inverter not only smooth speed, large range, high efficiency, start current is small, smooth operation, and energy saving effect is obvious. Therefore, the exchange frequency control has gradually replaced the traditional traditional slip speed, variable speed control, DC speed control system, more and more widely used in metallurgy, textile, printing and dyeing, smoke machine production lines and buildings, Water supply and other fields. Generally divided into rectifier circuit, flat wave circuit, control circuit, inverter circuit, and so on several major parts.
Q:In the official website to buy ThinkPad notebook, to the power adapter?
Hello, generally there will be a power adapter with Kazakhstan, unless there is a special note bare metal
Q:Lenovo laptop power adapter side of the feet which is positive
Very simple, look carefully on the power there is a symbol on the map (relatively small, carefully looking for all the regular power above the standard), as I shown below is the positive external, most of the power is like this , If the sign on the icon is anti, that is connected to the center of the black point is negative, that is negative inside the positive. This figure is also very intuitive.
Q:Who knows how the frequency converter works
The inverter is actually an inverter, which first turns the alternating current into direct current, and then switches the DC power with the electronic components into AC power, and the inverter is equipped with a variable frequency The frequency is adjustable in a certain range, and it is used to control the number of revolutions of the motor, so that the number of revolutions can be adjusted within a certain range.The frequency converter is widely used in the speed regulation of AC motor. Technology development direction, with the development of power electronics technology, AC frequency conversion technology from theory to practice gradually mature. Inverter not only smooth speed, large range, high efficiency, start current is small, smooth operation, and energy saving effect is obvious. Therefore, the exchange frequency control has gradually replaced the traditional traditional slip speed, variable speed control, DC speed control system, more and more widely used in metallurgy, textile, printing and dyeing, smoke machine production lines and buildings, Water supply and other fields. Generally divided into rectifier circuit, flat wave circuit, control circuit, inverter circuit, and so on several major parts.
Q:Does the inverter set the number of poles to match the number of poles of the motor?
The inverter will adjust the voltage and frequency of the output power by the breaking of the internal IGBT, according to the actual needs of the motor to provide the required power supply voltage, and then achieve the purpose of energy saving, speed control, in addition, the inverter has a lot of protection , Such as overcurrent, overvoltage, overload protection and so on. With the continuous improvement of industrial automation, the inverter has also been a very wide range of applications.
Q:What are the AC motor speed control methods? What are the characteristics of each
1, the frequency converter: smooth, according to the need to adjust the speed, is the future direction of the development of AC motor; (FM) 2, star, triangular connection conversion, generally in the larger motor start star start, triangular operation, Starting current. (Magnetic pole pairs) 3, there is a two-speed, three-speed motor, an increase of the winding, the main change in the stator winding connection to change the speed. (Change the number of pole pairs) The speed of change has two factors: magnetic pole logarithm, frequency
Q:Laptop power adapter leakage
Not a leakage of electricity, switching power supply design is the need for anti-interference caused by the leakage current, a lot of adapters have this phenomenon, but no harm to the human body is safe, you do not have to buy to replace, the original is good. If you have a protective ground at home, then you can not feel the leakage, because the leakage current from the protection of the ground to the earth, and really leak, then your home leakage protector on the trip.
Q:What is the application of variable frequency speed control?
Frequency conversion is to change the power supply frequency, thus regulating the load, play a lower power consumption, reduce losses, extend the service life of the role. Frequency translation. Frequency conversion technology is the core of the inverter, through the conversion of the power supply frequency to achieve the motor speed regulation of the automatic adjustment of the 50Hz fixed-line frequency to 30-130 Hz change frequency. At the same time, also make the power supply voltage to adapt to the range of 142-270V, to solve the power grid voltage instability caused by electrical work problems. By changing the AC frequency of the way to achieve the AC control technology is called frequency conversion technology.
Q:380V 2 pole motor can use the inverter?
Of course, the stator winding can be connected with concentric While enameled wire to be better, preferably 180 degrees or 155, and even dedicated enameled wire
Q:The inverter control power is also the same, the pole is not the same as the motor 6 or 4 pole can be used?
Can be used, their rated current is not the same, the need to use the inverter over-current overload protection and other parameters for the corresponding changes.
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