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:90KW inverter start 90KW, 4-pole motor and 6-pole motor j What is the difference? The inverter can be used for it?
Two motors can use the same frequency converter, but the motor nameplate data through the parameters to adjust the input when the inverter should pay attention to some
Q:Laptop power adapter aging
This should be no, play the game automatically shut down should be detected other
Q:Delta VFD-A frequency converter motor number of poles set
The frequency parameters of the inverter motor are not set, because the inverter will automatically detect the number of pole pairs of the motor during operation, and it will not need to be set.
Q:Who knows how the inverter is calculated?
The synchronous speed of the two-pole motor is 3000 rpm,
Q:Three sets of batteries (540V) DC power supply U / f inverter.
This is the reason for the battery characteristics, your group of easy to burn the battery discharge characteristics of the curve should not be partial to engage, so easy to burn. Ultimately it is your group of battery quality is relatively poor!
Q:Does the teacher know the working principle of the inverter?
The AC power rectification of the grid input is changed to direct current, and then the direct current is changed from AC by the control circuit according to the user's setting. The frequency is determined by the user. The motor is operated at this frequency to reach the change frequency. the goal of.
Q:What is the difference between AC and DC frequency converters?
Inverter air conditioner is relatively speaking in terms of ordinary air conditioning, ordinary air conditioning compression motor using AC induction motor, speed unchanged, 50HZ when the speed is about 2880r / min. The inverter air conditioner is the first 220V, 50HZ single-phase AC into three-phase inverter AC (25 ~ 118HZ, 56 ~ 160), the supply of compressors, through the frequency changes to adjust the compressor speed, so that continuous cooling capacity to adapt to air conditioning Load needs. L inverter air conditioner works: inverter air conditioner compressor by the variable frequency motor drag, the power inverter output frequency changes in the alternating current to the motor, so that the motor speed can be based on the needs of indoor cooling and continuous change, the final compressor cooling capacity To achieve continuous changes in the automatic control. In order to meet the continuous changes in the cooling capacity, the refrigeration system uses an electronic expansion valve, the pulse motor switch valve core, rapid control into the evaporator refrigerant flow. Power frequency changes from the inverter to achieve, as shown in Figure 1: 220V, 50HZ of the mains input, the frequency converter A / D AC / DC conversion, D / A inverter, the output frequency required by the three-phase alternating current, Room switching power supply principle is similar.
Q:Notebook power adapter on how to look at power
It should be noted that there are many in Japan to buy a notebook or over there in the parallel imports, input only support 110V in China is not used, because the Chinese standard is 220V. Now the subject is 90W 20V. Output voltage and power will be identified, such as the target for the 90W 20V, that output power is 90W, the output voltage is 20V. If only the output voltage and output current are identified,
Q:Can the laptop power adapter be generic?
Not common. Different computer adapter interface is not the same, and the voltage, current is not the same. If just the same, you can use, the voltage can also be used.
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.
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