SHANDONG LIANCHUANG GAOKE AUTOMATION CO.,LTD.

SHANDONG LIANCHUANG GAOKE AUTOMATION CO.,LTD.

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LIANCHUANG GAOKE AUTOMATION

OEM equipment manufacturers can customize the frequency converters that you prefer and install them on your products.

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Mini Economy Model-LC640

1PH 220V±15% 0.75-5.5KW
3PH 380V±15% 0.75-15KW

Category:

Economic model

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Keywords:

Economic model

Products Detail

Features:

Single Phase AC 220V ± 15% and three phase AC 380V ± 15% available.

Mini type. Most Economic design at very competitive price.

Compact design

Constant pressure water supply function

RS485 communication

Good dynamic performance

Super overload capacity

Rich combination functions

Stable performance

Technical Specification of LC640 Series:

Item	Technical Index	Specification
Input	Rated Voltage and Frequency	3PH（4T Series）380V;50/60HZ 1PH（2T Series）220V：50/60HZ
	Allowable range Of voltage change	3PH（4T Series）320V～460V 3PH（2T Series） 190V～250V
Output	Voltage	4T series；0～380V 2T series；0～220V
	Frequency	0~500HZ
	Overload Capacity	110% long time 150% 60s 180% 5s
Control Mode		V/F 、Simple Vector Control 、Advanced Vector Control 、Torque Control
Control Characteristic	Resolution of Frequency	Anolog Input	0. 1% of Max output frequency
		Digital setting	0. 1HZ
	Accuracy of Frequency	Anolog Input	0.2% of Max output frequency
		Digital Input	0.01% of Output frequency set
	V/F Control	V/F Curve （ Voltage frequency Characteristics)	Three ways: 1.the linear torque characteristic curve 2. the square torque characteristic curve 3. V / F curve set by the user
		Torque lift	Manual setting: 0.0~30.0% of the rated output Automatic lifting: the lifting torque is automatically determined according to the output current and the motor parameters
		Automatic Limiting of current and pressure	During acceleration, deceleration or stable operation, the motor stator current and voltage are automatically detected under the unique algorithm to minimize the possibility of system fault trip
	SVC	Voltage frequency Characteristics	The output pressure frequency ratio is automatically adjusted according to the motor parameters and the unique algorithm
		Torque Characteristics	starting torque: 100% Rated torque at 5.0Hz (VF control) 150% rated torque at 1.0Hz (vector control)
		Current and voltage suppression	The whole current closed-loop control, completely avoid current impact, with perfect overflow pressure suppression function
	Under voltage	Especially for users with low grid voltage and frequent grid voltage fluctuations, the system can maintain the maximum possible
	inhibition during operation	operating time even within the allowable voltage range
Typical Function	MultiSection speed operation	7-segment programmable multi segment speed control, and multiple operation modes are optional
	PID Control RS485 Communication	Built-in PID controller (preset frequency). Standard configuration of RS485 communication function, a variety of communication protocols are optional, with linkage synchronization control function
	Frequency Set	Analog Input	DC voltage 0~ 10V, DC current 0 ~ 20 mA (upper and lower limits are optional
		Digital Input	Operation panel setting, RS485 interface setting, UP / DOWN terminal control, can also be combined with analog input
	Output Signal	Relay Output	1-way relay output (TA, TC), up to 17 choices
		Analog Output	1 analog signal output, the output range is flexibly set between 0-20 mA or 0- 10 V, which can realize the output of physical quantity such as set frequency and output frequency
	Automatic Voltage Stabilization	According to the need, dynamic pressure, static pressure and unstable pressure can be selected to obtain the most stable operation effect
	Acceleration and deceleration time setting	0. 1S～999.9min can be set continuously
	Brake	Dynamic Braking	The energy braking starting voltage, return voltage and energy braking rate can be adjusted continuously
		DC injection braking	Start frequency of shutdown DC brake: 0.00~ [F0.05] upper limit frequency Brake time: 0.0~30.0s;Brake current: 0.0%~50.0% rated voltage of the motor
	Low Noise operation	Carrier frequency 2.0KHZ~20.0KHZ is continuously adjustable to minimize motor noise
	Counter	An internal counter for facilitate system integration
	Running function	Upper and lower limit frequency setting, frequency jump operation, reverse operation limit, turn frequency compensation, RS485 communication, frequency increasing, decreasing control, fault self-recovery operation, etc

Display	Operating panel display	Running Status	Output frequency, output current, output voltage, motor speed, set frequency, module temperature, PID setting, feedback amount, analog input and output, etc
		Alarm Content	Record the output frequency, set frequency, output current, output voltage, DC voltage, and module temperature of the latest fault
Defensive Function			Over current, over voltage, under voltage, module fault, electronic thermal relay, overheating, short circuit, internal memory fault, etc
Circumst ance	Ambient Temperature		-10℃~+40℃（(Ambient temperature is in 40℃ ~50℃, please decrease for use)）
	Ambient Humidity		5％～95％RH ，no water beads condensation
	Ambient Environment		Indoor (no direct sunlight, no corrosion, flammable gas, no oil fog, dust, etc.)
	Altitude		Derate 10% for every 1000m increase
structure	Protection Grade		IP20
	Cooling method		Air cooling, with fan control
Installation method			Wall Mounting Type

Dimensions of LC640 Series

Outlook dimensions：

Model	W(mm)	W1(mm)	H(mm)	H1(mm)	H2(mm)	D(mm)	Installation hole(mm)
	Installation dimensions			Overall dimensions			Installation hole(mm)
0.75~2.2KW	63	72	142	136.5	146	105.5	4
4-5.5KW	78	87	181.5	172.5	181.5	127.5	4
7.5-11KW	106	118	240	230	244	155	5

WE COMMITMENTS

1.Software engineers and hardware engineers will serve you together, to solve all your technical related issues on time.

2.Priority delivery to ensure timely delivery.

3.Market protection to ensure dealer rights.

4.OEM/ODM

5.Some consumable parts will be sent with the machines, to solve problem for customers timely.

OUR ADVANTAGES

1.With 20 years of production experience and advanced equipment, we are the largest VFD manufacturer in north of China, and we support for factory inspection at any time.

2.High-cost performance: competitive price, advanced technology, professional service.

3.One-stop production: from software program and design, to PCB board printing, assembly and testing, to metal shell production and heat sink production, etc. With all those processes under control, we can ensure the stable quality and lowest cost.

4.Strict quality control: five-steps inspection ensures that each machine is a top-quality product before leaving our factory: AOI inspection, single board (PCB) test, pre-test after assembly, aging test and whole machine test.

5.Except ISO9001 and CE approved, we also won multiple domestic awards, and we are one of the VFD manufacturers supported by the government.

6.Complete after-sales service system, 18-month warranty from product delivery.

7.We have run mature dealer-service business model with 50+ dealers in operation at home and abroad.

Performance Comparison: Our VFD vs. Leading Brands

Feature	Our Factory VFD	ABB / Siemens / Danfoss	Advantage for You
Price	Factory Direct: 30-50% Lower	Premium Brand Pricing	Significant Cost Savings
Power Range	0.75kW - 1000kW+	Similar	Same Flexibility
Efficiency	Up to 98%	Up to 98%	Comparable Performance
Overload Capacity	150% for 60s / 180% for 3s	Similar	Reliable in Demanding Apps
Control Technology	Sensorless Vector / Closed-Loop	Advanced Vector Control	Equivalent Precision
Energy Savings	30-50% Reduction	30-50% Reduction	Same ROI, Lower Initial Cost
Warranty	1-3 Years	1-3 Years	Longer Protection
Customization	OEM/ODM Available	Limited	Tailored to Your Needs
Delivery Time	7-15 Days	Longer Lead Times	Faster Project Start

As a direct manufacturer, we deliver high-performance VFDs with specifications matching top brands like ABB and Siemens, but at 30-50% lower cost. Enjoy the same energy efficiency and reliability without the premium price tag – maximizing your ROI and competitiveness.

Warranty Agreement

1.The warranty period of this product is 18 months (subject to the barcode information of the machine body). During the warranty period, under the normal use of the user manual, our company is responsible for free repair of the product sales failure or damage.

2.During the warranty period, certain maintenance costs will be charged for damage caused by the following reasons:

The machine is damaged due to errors in use and unauthorized repair and transformation;

Machine damage caused by fire, flood, abnormal voltage, other premature disasters and secondary disasters;

Hardware damage caused by artificial fall and transportation after purchase;

Machine damage caused by not operating according to the user manual provided by our company;

Faults and damages caused by obstacles outside the machine (such as external equipment factors);

In case of product failure or damage, please fill in the contents of the “Product Warranty Card” correctly and in detail.

The charge of maintenance costs shall be subject to the latest adjusted “Maintenance Price List” of our company.

This warranty card will not be reissued under normal circumstances. Please be sure to keep this card and show it to the maintenance personnel during warranty.

In case of any problem during the service, please contact our agent or our company in time.

The Company reserves the right to interpret this agreement.

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