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Variable Frequency Drive HS320 Series Manufacturer & Supplier

HARS is dedicated to the design and manufacture of sophisticated Variable Frequency Drives, used to control electric motors in a wide variety of industrial and energy saving applications.

● Original Manufacturer with Competitive Price
● 16+ Years of VFD Knowledge and Experience
● ISO / CE Manufacturing Standards

VFD-320 (3)
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VFD-HS320 Series Offered

The SD320 series VFD is a general-purpose VFD developed for various fields, including traditional agriculture, industry, and manufacturing. It is widely applicable in industries such as fans, pumps, printing and packaging, power materials, metallurgy, chemicals, and municipal fire protection. This series of VFD features outstanding performance, rich functionalities, compact structure, simple operation, safety and reliability, and excellent adaptability to different environments.

Can't Find Ideal VFD (Variable Frequency Drive) For Your Industry?

We provide custom solutions to all our customers and offer professional advice that you can take advantage of.
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VFD-HS320 Series Features

1.It equipped with open-loop vector drive function, capable of handling applications requiring low speed and high torque.
2.It features a completely sealed cooling air duct, providing strong environment resistance and excellent heat dissipation performance
3.It includes V/F control It provides high torque output and strong ability for loaded start-up.
4.It’s very User-friendly and suitable for multi-scenario applications (such as intelligent small water pumps, engraving machines, etc.);
5.It has comprehensive protection functions, including output phase loss protection, overcurrent protection, overvoltage protection, overload protection, and over-temperature protection.
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VFD-HS320 Series Functional Parameters

Basic Functions   Frequency 0.00Hz-400.00Hz
  Carrier Frequency 2.0-16.0KHz
  Frequency Setting Resolution Analog setting: 0.1% of the highest frequency, Digital setting: 0.01Hz
  Control Modes V/F control, Open-loop vectro control
  Speed Stability ±0.5%
  Overload Capacity G-type machine: With reverse-time-limit overload protection, 115% for 6 minutes, 150% for 1 minute
  V/F Curves Three modes: Linear, Quadratic, 1.5th power, 1.2nd power, User-defined V/F curve, V/F Separation
  Acceleration Curve Linear mode
  DC Braking DC brake start frequency: 0.00% - upper limit frequency, Brake time: 0.0-60.0s; Brake current: 0.0-100% of motor's rated current.
  Jog Control Jog frequency range: 0.0Hz - maximum frequency, Jog acceleration/deceleration time: 0.1-999.9s
  Simple PLC and Multi-segment Speed Running Up to 7 segments of speed running
  Build-in PID Capable of implementing closed-loop control system for process control
  Motor Parameter Identification Static identification
  Overvoltage, Overcurrent, Stalling, and Over-Excitation Control Automatically limits current and voltage during operation, preventing frequent overcurrent, overvoltage, and trips
  Torque Boost and Slip Compensation Torque boost can be selected as automatic or manual, Slip compensation enhances low-speed loaded capacity and compensates for slip speed
  Communication Function Not available;                                              SD320 has RS485 communication
  Braking Function Not available;                                                SD320 has braking function
Customizable Functions   Oscillation Suppression Enables oscillation suppression to eliminate oscillations and prevent overcurrent in the inverter
  PID Control Built-in PID controller for process control
  Swing Frequency Function Outputs frequency, oscillating up and down around the set frequency, suitable for industries like textiles and chemical fibers
  Operating Functions Upper and lower frequency setting, frequency hopping operation, reverse operation limitation, frequency increment and decrement control, fault auto-recovery operation, and more.
  Constant Pressure Water Supply Function Maintains constant water pressure and automatically sleeps and wakes up based on pressure
SD321 Series: In addition to the features of SD320, the SD321 series offers the following optional functions: braking, RS485 Modbus communication, and temperature protection.
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VFD-HS320 Series Specifications

SD320 Series Product Power Input Voltage/Frequency Output Voltage/Frequency Output Current (A) Product Dimensions (mm) Installation Dimensions (mm)
0.4S1-220V 0.4KW single phase 200V-240V 50Hz/60Hz 3 phases 200V-240V 50Hz/60Hz 2.10  170*79*127 160*60.5 M5
0.75S1-220V 0.75KW 3.80 
1.5S1-220V 1.5KW 7.00 
2.2S1-220V 2.2KW 9.00  187*86*144 173*68 M4
3.0S1-220V 3.0KW 13.00  216*101*151 204*83.5 M4
4.0S1-220V 4.0KW 15.00  237*111*168 216*88 M5
5.5S1-220V 5.5KW 20.00 
0.4S3-220V 0.4KW 3 phases  200V-240V 50Hz/60Hz 3 phases  200V-240V 50Hz/60Hz 2.10  170*79*127 160*60.5 M5
0.75S3-220V 0.75KW 3.80 
1.5S3-220V 1.5KW 7.00 
2.2S3-220V 2.2KW 9.00  187*86*144 173*68 M4
3.0S3-220V 3.0KW 13.00  216*101*151 204*83.5 M4
4.0S3-220V 4.0KW 15.00  237*111*168 216*88 M5
5.5S3-220V 5.5KW 20.00 
0.4G3-380V 0.4KW 3 phases  340V-440V  50Hz/60Hz 3 phases  340V-440V  50Hz/60Hz 1.50  170*79*127 160*60.5 M5
0.75G3-380V 0.75KW 2.10 
1.5G3-380V 1.5KW 3.80 
2.2G3-380V 2.2KW 5.10  187*86*144 173*68 M4
3.0G3-380V 3.0KW 7.10  216*101*151 204*83.5 M4
4.0G3-380V 4.0KW 9.00  237*111*168 204*83.5 M4
5.5G3-380V 5.5KW 12.60 
7.5G3-380V 7.5KW 16.10  237*111*168 216*88 M5
11.0G3-380V 11.0KW 25.00  249*143*172 237*130 M5
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What Is A Variable Frequency Drive (VFD)?

What Is A Variable Frequency Drive (1)
A variable frequency drive (VFD) (also known as AC Drive, Inverter, Adjustable Frequency Drive, Adjustable Speed Drive, Variable Speed Drive Or Variable Frequency Variable Voltage Drive) is an electronic device used to control the speed and torque of an electric motor by varying the frequency and voltage supplied to it.

Variable Frequency Drives (VFD) consist of two main components a rectifier and an inverter. The rectifier converts AC power from the source into DC power, while the inverter transforms the DC power back into adjustable-frequency and voltage AC power, supplying it to the electric motor. This method of adjusting the power input allows the motor to operate at different speeds, making VFD widely used in various industrial applications.

HARS Series Variable Frequency Drives (VFD) play a crucial role in areas such as improving energy efficiency, reducing energy consumption, and enabling soft start and stop functionalities.
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VFD Working Principle

Hars VFD is a power control equipment which adopts microelectronics technology and frequency conversion technology to change the working power frequency of motor for controlling AC motor.

Variable Frequency Drive converts incoming AC power to DC, inverts it back to AC with variable frequency and voltage, and supplies this controlled power to the motor. This control allows for precise regulation of motor speed, soft start and stop, and improved energy efficiency in various industrial applications.
VFD-Working-Principle (1)
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When To Use a VFD?

As a leading VFD AC drive manufacturer and supplier, we recommend using VFD in many situations, which are as follows

> To precisely control the speed of a manufacturing process based on specific parameters or conditions
> To provide a smooth start and vigilant acceleration to operating speed, preventing damage to the equipment being transported.
> To ensure energy savings, especially in areas where a load’s torque and power may vary.
>To make the process and quality enhancements in applications’ acceleration, monitoring, speed, temperature, tension, pressure, and torque.

HARS is a professional AC drives manufacturer and global supplier specialized in research, manufacturing, and trading high to low variable frequency drives. Armed with years of experience and a dedicated team, offering a wide array of VFD products.

Need VFD Drive? Reach Out to Us!
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VFD Manual Downloads

Name Size Thumbnail Download
VFD-HS320 Series Manual.pdf 1014KB download Download
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About HARS

We were established in 2008 and is located at 18 Xiaoguo Avenue, Economic Development Zone, XiaoXian City, Anhui Province. It is a high-tech enterprise specialized in research, development, production, sales, and technical services of industrial inverters. The company currently has over 200 employees, over 50% of the workforce consists of professionals with expertise in variable frequency technology, contributing to its robust product research and development capabilities and technical support.

As a government-supported high-tech enterprise, we has obtained ISO9001:2015 quality management system certification & EU CE certification. With continuous research and development efforts, our products have evolved into 3 major series and 10+ specialized models...
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Top Three Frequency Converter Factories In China

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Production Capacity

HARS VFD production base covers an area of over 30,000 square meters and is equipped with seven assembly lines for frequency inverters, three production lines for circuit boards and testing, three automated packaging lines, and three fully automated three-proof coating lines. Additionally, the base is equipped with automated devices such as automatic screw machines, automatic welding machines, and automatic unboxing machines. The SD320 assembly line, in particular, can produce one frequency inverter every 26 seconds, with a daily output of up to 3000 units. The advanced equipment ensures both the quality and productivity of our products.
  • Automated-production-line
    Automated production line
  • Fully-automatic-packaging-line
    Fully automatic packaging line
  • Automated-assembly-line
    Automated assembly line
  • Automated-inspection-line
    Automated inspection line
  • Automatic-Three-proof-Coating-Line
    Automatic Three-proof Coating Line
  • Automatic-unpacking
    Automatic unpacking
  • Three-proof-paint-coating-operation
    Three-proof paint coating operation
  • Automatic-screw-machine
    Automatic screw machine
  • Circuit-board-storage
    Circuit board storage
  • Constant-Temperature-and-Humidity-Warehouse
    Constant Temperature and Humidity Warehouse
  • Workshop-Raw-Material-Warehouse
    Workshop/Raw Material Warehouse
  • Finished-Goods-Warehouse
    Finished Goods Warehouse
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Cooperation Process

Step.1
Send your inquiry
Step.2
Quote price
Step.3
Negotiate price and lead time
Step.4
Sign the contract
Step.5
Payment and production
Step.6
Inspection
Step.7
Shipment

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Variable Frequency Drive FAQ

  • What does a variable frequency drive do?

    A variable frequency drive (VFD) is an electronic device used to control the speed and torque of an electric motor by varying the frequency and voltage supplied to it. it widely used in various applications, including HVAC systems, industrial machinery, pumps, fans, compressors, and more.

  • What is difference between VSD and VFD?

    Variable frequency drives (VFDs) and variable speed drives (VSDs) differ in that VFDs are AC drives only, while VSDs can be either AC drives or DC drives.  VFDs vary the speed of an AC motor by varying the frequency to the motor.  VSDs referring to DC motors, vary the speed by varying the voltage to the motor.The VFD is designed for the continuous operation of electrical motors.

  • What is the advantage to variable frequency drive motors?

    Energy efficiency, soft start and stop capabilities, enhanced process control, extended motor lifespan, adaptability to load changes, reduced electrical stress, cost savings, improved power factor, remote monitoring and control features.

  • What applications can I use a VFD?

    Pumps 
    Fans 
    Conveyors
    Compressors 
    Centrifuges 
    Mixers and Agitators 
    Machine Tools 
    Crushers and Grinders
    Extruders
    Hoists and Lifts 
    Escalators and Elevators
    Paper Machines 
    Textile Machinery 
    Electric Vehicles 
    Wastewater Treatment 

  • What are the different types of variable frequency drives?

    Single phase and three phase VFD
    A single-phase converter outputs three phases with a voltage of 220V from a single-phase 220V network.
    Three-phase VFDs are connected to three-phase 380V networks and output three phases at 380V as output voltage.
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