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

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:Is the speed of the motor controlled?
Armature for the cast steel made of cylindrical structure, which is connected with the squirrel cage induction motor shaft, commonly known as active part; Pole made of claw-shaped structure, mounted on the load shaft, commonly known as the moving part. The active and slave parts are mechanically free of any contact.
Q:30 kW 6 pole frequency motor torque is how much
Look at the motor sample or nameplate, above some Different manufacturers of the motor may be different I have a sample on hand, 90KW, six pole, frame number 315M1, rated current 168A, rated torque 859.4 And then look at your inverter performance and motor performance, and can generally be overloaded to the rated torque of 150%
Q:Octopus AC Servo motor can be driven with ordinary inverter?
First look at AC Servo motor motor type, synchronous motor or asynchronous motor;
Q:Inverter principle eff23
According to the use of classification, can be divided into general-purpose inverter, high-performance dedicated inverter, high-frequency inverter, single-phase inverter and three-phase inverter. VVVF: change the voltage, change the frequency CVCF: constant voltage, constant frequency. The AC power supply used by each country, whether it is for home use or for the factory, has a voltage and frequency of 400V / 50Hz or 200V / 60Hz (50Hz), and so on. In general, a device in which an alternating current having a constant voltage and frequency is converted into a voltage or a variable frequency alternating current is referred to as a "inverter". In order to produce a variable voltage and frequency, the device first converts the alternating current of the power supply into direct current (DC). For the motor control of the inverter, both can change the voltage, but also can change the frequency. Inverter control mode
Q:Does the teacher know the working principle of the inverter?
At present the main inverter is Mitsubishi you can go to their domestic sales site to find a specific inverter manual has a detailed explanation Also popular said that the inverter is to change the operating frequency of some mechanical equipment control devices, such as motors, pumps, etc.
Q:How is the notebook with a power adapter?
Clear use: Home use and office with the laptop power adapter to buy a home (AC), the car with the laptop power adapter, to buy a car, you want to use the aircraft on the basis of the car with a The aircraft head on it. Home, car, plane, want to take into account, to buy a two-in-one, or three in one. But if you do not want a few bags of computer weight, you can put a home, put a car, the office put a, so you can not bring to bring, plug to plug, more convenient, you can also give people around
Q:4 pole 380V 4-5.5KW frequency conversion motor and inverter about how much money, such as the use of electromagnetic speed motor comparison
4-5.5KW inverter made about 1300 or so, the frequency conversion motor about 3000 The same power of the electromagnetic governor + motor about 4000, the price is almost
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:What is the base blockade in the drive?
Base blockade is to deal with ul or ce such a special application of security agencies means that when the parking limit action after the base blockade even if the program can not malfunction, relative to the emergency stop circuit more harsh they will directly disconnect the power
Q:How to make the motor speed (control speed), can not use frequency
If you use AC asynchronous motor speed control in three ways: 1 / variable speed control. By changing the motor stator pole pairs to speed, not the linear speed for the sub-file speed, the motor structure and electrical control more complex. 2 / electromagnetic speed control. Driven by the magnet magnet, the electromagnetic coil through the variable size of the DC to speed, for the linear speed, but a waste of energy 3 / frequency control. Through the inverter speed, stepless speed regulation, speed control effect is good, but one-time investment. If the DC motor speed is to change the armature or the excitation coil voltage to achieve speed. Application in the relatively high demand, a one-time investment is relatively large
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