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: Is the laptop power adapter high temperature normal? Is there anything else?: Summer heat is normal, as long as it is not the kind of hand touch on the bubble temperature, no problem

Q: 380V motor addition to the inverter, but also how to change its speed?: Rotary motor rotor series resistance adjustable speed. 4. Change the slip electromagnetic speed (slip motor)

Q: What parts of the inverter composition: Frequency control technology is an important development direction of modern power transmission technology, 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. However, due to the environment, the use of life and man-made operation and other factors, affecting the life of the inverter greatly reduced, while the use of a variety of failures have occurred. Here we are on the composition of the inverter and common problems and countermeasures and we discuss. Generally divided into rectifier circuit, flat wave circuit, control circuit, inverter circuit, and so on several major parts.

Q: Laptop power adapter current is not the same alternative?: The adapter is the voltage source, the actual output current depends on the size of the load resistance,

Q: My Lenovo v450 laptop power adapter should be bad how to match?: Hello, this is not recommended to go online to buy. The original is too expensive, generally with the domestic voltage instability may occur, so I suggest you go to the computer city to buy. Generally good quality, to about 120. The The As for the model, you can look at the output power, or you take your bad adapter to go, people see a look. The The The You can use a few years no problem, power adapter this kind of thing, online to buy the replacement is not convenient. The Hope to help you

Q: Variable frequency pump pressure in the very low flow instability, why?: . If you want to stabilize the pressure, you must adjust the pipeline characteristic curve is the work point to enhance, so that you can both stabilize the pressure and adjust the flow.

Q: Master Hello a machine requires 500 speed matching 6-pole motor frequency converter transferred to about 28HZ: The belt rotation is calculated by the speed ratio. The current transferred to the motor by the inverter is approximately equal to the rated current of the motor, ie the motor's power is maximized.

Q: How to choose the inverter: Look at the motor seat size is 7.5kw it, this model of the inverter manufacturers a lot of production, and are built-in brake unit, so in the function which are the same It is important that the inverter life, stability, price comprehensive consideration Mitsubishi, Panasonic, LG, Emerson, Yaskawa, Siemens and so on

Q: Yasukawa inverter reported bb code that is the reason why the base blockade?: Not a drive failure! Is an external signal problem.

Q: Lenovo g450 laptop power adapter specifications is what?: Lenovo g450 laptop power adapter specifications is what? Wrqwgp520 | viewed 4426 times Recommended at 2016-05-26 08:52:41 Best answer Lenovo Lenovo 19V4.74A G450 G470 Laptop AC Adapter: 【Power supply technical parameters】 1. Input voltage: AC100-240V.50-60Hz.1.5A 2. Output voltage: 19V 3. Output current: 4.74A 4. Work efficiency:> 85% 5. Output power: 90W 6: Input interface: Plum triangular interface 7: Output interface: 5.5 * 2.5

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