AC Motor Drive

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Description of AC Motor Drive

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 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 AC Motor Drive

Application of 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

Performance of AC Motor 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:Fuji inverter motor set the number of poles will not have any effect?: The number of motor poles corresponds to the speed of the motor, the number of poles is not set when the speed of the control error, in the high speed requirements of the transmission is not allowed.

Q:Why G120 inverter to be equipped with 4-pole motor?: On the upstairs that the motor parameters to be set on the possible, such as voltage, current, power, power factor, rated efficiency, rated frequency, rated speed, motor overload factor

Q:Oil-free vertical vacuum pump why a little negative pressure inverter on the torque limit: and then use the inverter into three-phase AC, 380 volts almost, Can only use the transformer rose to 380 volts.

Q:Motor nameplate on the standard 2P, I set the number of motor pole in the inverter, is set 2 or 4 pole?: Then the motor nameplate on the standard 2P, it must be 2-pole motor, synchronous speed = 60 seconds x frequency (mainland 50Hz) / pole pairs, you can also look at the rated motor speed, about 2940 rev / 60s, so the inverter Set the number of motor poles, is set 2 pole, I hope you can be satisfied.

Q:Variable frequency conversion frequency difference characteristics based on,: Pole is the pole pair. So that the synchronous speed has changed, you can speed, but can not smooth speed.

Q:Why the notebook power adapter can not be universal: First, the interface is different Most laptop power adapter brands have different interfaces, which means that other brands of power adapters can not be plugged into your laptop for power supply. The interface is relatively safe, because at least you will not plug in the current or voltage does not meet the power adapter to the laptop power supply, which led to computer hardware damage.

Q:Whether the inverter can control the start and stop of the horizontal monopole centrifugal pump: Inverter general control object is the AC motor, you are the AC motor, then the general inverter will be able to achieve start and stop, select a reasonable power section, a reasonable set of start and stop time can be very good drop protection motor. Can also achieve speed control function.

Q:East yuan 7200GS inverter start 11KW 4-pole motor and 2-pole motor need to modify what parameters?: motor to be slightly larger, the speed of 4 pole speed is 1450 r / min, 2 pole is 970 r / min The With the inverter control, you only need to modify the parameters of which the motor parameters, and then the motor parameters from the study on it, the most important is your use of inverter equipment and control methods, and then the above two factors Feature adjustment parameters. There is to pay attention to the use of the inverter environment, the inverter is an electronic product, the environment is relatively high, in the use of as much as possible to improve the use of the environment.

Q:How does the variable frequency motor output torque at very low frequencies?: 1, to improve the slip of the inverter compensation coefficient 2, to improve the continuous lifting coefficient of the inverter, but the coefficient is too high there will be overcurrent. 3, with no sensor vector control can increase the motor output torque or encoder with the vector control can make the motor at low frequency to achieve the rated output torque.

Q:Can the inverter be used to control the speed of the DC motor?: For the brush commutation DC motor, the speed of the output torque in a certain circumstances and the input voltage related. For this type of motor, use the inverter to control the output of the rectifier device that supplies power to the motor, which can control the speed. For the brushless DC motor, the controller is in accordance with a certain law to change the form of stator winding power supply to produce a rotating magnetic field to drive the rotor rotation. That is, the DC motor controller outside the part of the AC motor and the structure and the principle has not much difference (see below. For such motors, with the inverter to replace the controller, and control the same as the AC motor Control the speed.

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