22KW Three Phase Frequency Inverter System 1

22KW Three Phase Frequency Inverter System 2

22KW Three Phase Frequency Inverter

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Description of 22KW Three Phase Frequency Inverter

CMAX frequency inverter 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 22KW Three Phase Frequency Inverter

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 22KW Three Phase Frequency Inverter

Application of 22KW Three Phase Frequency Inverter

★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

Three Phase Frequency Inverter

Performance of 22KW Three Phase Frequency Inverter

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 parameters of the inverter is 4, 6 motor can be used: Variable-frequency (VFD) is the application of frequency conversion technology and microelectronics technology, by changing the motor operating frequency mode to control the AC motor power control equipment.

Q: What is the difference between variable frequency motor and variable speed motor?: so the output torque will not change, that increase the current work is useless work. Variable frequency motors are generally used for deceleration, and in accordance with the law to adjust the voltage and frequency, that is, no matter how changes, the voltage divided by the frequency is a constant value.

Q: Inverter signal line analog 4-20mA connection positive and negative can be reversed?: Inverter signal line analog 4-20mA connection when the positive and negative is not reversed. Inverter input analog signal is generally 4-20mA, 0-20mA, 0-5V, 0-10V and so on.

Q: What are the differences and links between the soft starters and the frequency converters, and their respective principles and uses?: Soft starters and frequency converters are two completely different uses of the product. The frequency converter is used for the need for speed control where the output not only changes the voltage but also changes the frequency; the soft starter is actually a voltage regulator for the motor to start when the output only changes the voltage and does not change the frequency. The frequency converter has all the soft starter functions, but its price is much more expensive than the soft starter, the structure is much more complex. Soft starter (soft starter) is a set of motor soft start, soft stop, light load energy saving and a variety of protection functions in one of the new motor control device, known as the Soft Starter abroad. The softener uses a three-phase anti-parallel thyristor as a voltage regulator, which connects it between the power supply and the motor stator. This circuit, such as three-phase full-bridge rectifier circuit. When using the soft starter to start the motor, the output voltage of the thyristor gradually increases, the motor gradually accelerates until the thyristor is fully conductive, the motor works at the mechanical characteristics of the rated voltage, smooth start, reduce the starting current and avoid starting the overcurrent trip. When the motor reaches the rated speed, the start-up process ends, the soft starter automatically uses the bypass contactor to replace the completed thyristor, providing the rated voltage for the normal operation of the motor to reduce the heat loss of the thyristor and prolong the service life of the soft starter , To improve its efficiency, but also to avoid the harmonic pollution to the grid. Soft starter also provides soft stop function, soft stop and soft start the process of reverse, the voltage gradually reduced, the number of revolutions gradually reduced to zero, to avoid free-wheeling caused by the impact of torque. How the frequency converter works

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: Will the asynchronous motor pole change the number of speed control can also be combined with the frequency converter: but the use of the inverter is based on changes in the load by changing the frequency of power into the motor at any time speed control, you can achieve a smooth and accurate stepless speed control is Now widely used in a speed control method, especially for the load often change or often in the light load operation of the motor.

Q: What is the characteristic of the variable pole speed method?: Third, cascade speed control method Cascade speed regulation refers to the winding motor in the rotor loop into the adjustable additional potential to change the motor slip, to speed control purposes. Most of the slip power is absorbed by the additional potential in series, and the additional device is used to return the absorbed slip power to the grid or to convert the energy. According to the slip power absorption and utilization, cascade speed can be divided into motor cascade speed, mechanical cascade speed control and thyristor cascade speed form, the use of thyristor cascade speed, which features: The process of the slip loss back to the grid or production machinery, the higher efficiency; device capacity and speed range is proportional to the investment province, for speed range in the rated speed of 70% -90% of the production machinery; Device failure can be switched to full speed operation, to avoid shutdown; thyristor cascade speed power factor is low, the greater the impact of harmonics. This method is suitable for use in wind turbines, water pumps and rolling mills, mine hoists, extruders. Fourth, winding motor rotor series resistance speed control method Winding asynchronous motor rotor series into the additional resistance, so that the motor slip increase, the motor running at a lower speed. The greater the resistance of the series, the lower the motor speed. This method is simple and easy to control, but the slip power is consumed in the form of heat. Is a level of speed, mechanical characteristics of soft.

Q: Speed of 3000 r / min three-phase motor how to change its speed: Speed of 3000 r / min three-phase motor speed: Variable pole speed Change the motor stator winding wiring way to change the motor pole number, which can be level to change the synchronous speed, to achieve a variable speed motor speed. This type of speed motor currently has a series of products to choose from, such as single-winding multi-speed motor. Frequency Change the asynchronous motor stator terminal input power frequency, and make it continuously adjustable to change its synchronous speed, to achieve the motor speed control method known as frequency control. The most energy efficient is the frequency conversion motor, but the need to install the inverter in the power part of the cost is too high.

Q: How do I select a drive? Which brand is better: ???4, when the inverter is used to control several motors in parallel, be sure to consider the inverter to the motor cable length of the sum of the inverter in the allowable range. If you exceed the specified value, to enlarge one or two steps to select the inverter. In addition, in this case, the inverter control mode can only be V / F control mode, and the inverter can not protect the motor over-current, overload protection, this time in each motor on the fuse to achieve protection. ????5, for some special applications, such as high ambient temperature, high switching frequency, high altitude, etc., this time will cause the inverter derating, the inverter need to enlarge a file selection. ????6, the use of inverter control high-speed motor, due to high-speed motor reactance small, high harmonics also increase the output current value. Therefore, when selecting a frequency converter for a high-speed motor, it should be slightly larger than the inverter of an ordinary motor. ????7, the inverter for the variable pole motor, should pay full attention to select the inverter capacity, so that the maximum rated current in the inverter rated output current below. In addition, in the operation of the number of pole conversion, you should first stop the motor work, otherwise it will cause the motor idling, bad will cause damage to the inverter.

Q: The emitter E of the inverter inverter module and the AC output U are not directly connected together: Corresponding to a phase of the branch of the IGBT inverter module generally appear in pairs

We are a Hi-Tech enterprise establishing the networks of development, production, logistics and service extending to all over the world from Shenzhen and Dalian. Integrating the advanced technology from Europe, America, Japan and Taiwan,.We supply customers automatic and driving products with multi-functions, such as frequency inverter, servo motor and drive, soft starter, AC Choke, EMI filter, brake Units, Brake resistor etc.

1. Manufacturer Overview

Location	Liaoning,China
Year Established	2001
Annual Output Value	US$5 Million - US$10 Million
Main Markets	North America South America Eastern Europe Southeast Asia Africa Oceania Mid East Eastern Asia Western Europe
Company Certifications	ISO9001

2. Manufacturer Certificates

a) Certification Name
Range
Reference
Validity Period

3. Manufacturer Capability

a) Trade Capacity
Nearest Port	DALIAN
Export Percentage
No.of Employees in Trade Department
Language Spoken:	ENGLISH,CHINESE
b) Factory Information
Factory Size:	5,000-10,000 square meters
No. of Production Lines	Above 10
Contract Manufacturing	OEM Service Offered Design Service Offered Buyer Label Offered
Product Price Range	Low and/or Average