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GD300-01A Series VFD for Air Compressor

The GD300-01A Series VFD for Air Compressor​​ is a specialized product launched by INVT for the air compressor industry. It delivers superior control for both synchronous and asynchronous air compressors.
The GD300-01A Series VFD for Air Compressor​​ features dedicated control logic for air compressors. It can directly interface with emergency stop, pressure, temperature, fan current transformer, and fault signals. It enables solenoid valve control, provides 24V power for HMIs, and offers Modbus communication. When paired with INVT’s dedicated air compressor HMI, it eliminates the need for external controllers or PLCs, significantly simplifying electrical system design while achieving optimal variable frequency control.
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  • GD300-01A

1. It is integrated industry-specific functions for air compressors

a. All logic control and protection functions are accomplished through the collaboration between the touchscreen and the frequency converter, eliminating the need for a PLC. The system is more streamlined and highly integrated.

b. It is paired with a dedicated touchscreen, it enables visual operation of the air compressor, making it more intuitive and efficient.

c. Intelligent sleep and wake-up technology for higher energy efficiency and smarter operation.

d. Excellent pressure and temperature PID control functions ensure stable air supply pressure and temperature, maintaining the air compressor in optimal working condition.

e. It is capable of driving both asynchronous and synchronous motors, meeting two application needs with one model. Greatly facilitates manufacturer procurement and inventory management.


2. It is optimized functional and performance design

a. It is built-in DC reactor.

b. It is integrated terminal functions for various industry-specific needs.

c. It is upgraded 24V power output.

d. It is redesigned terminal layout for improved usability.


3. Powerful expansion capabilities

a. It is combined with an IoT communication adapter, it forms a dedicated IoT solution for the air compressor industry, enabling data interconnectivity and remote control of air compressors. This brings greater convenience to management and maintenance.

b. With an optional power consumption monitoring module, it accurately statistics electricity usage of the air compressor, making energy consumption and energy-saving effects visible.


4.Comprehensive protection functions


  1. Input Voltage: 3-phase 380V (-15%) to 440V (+10%)

  2. Rated Input Frequency: 50Hz or 60Hz (range: 47–63Hz)

  3. Efficiency: 97%

  4. Power Factor: 0.9

  5. +24V DC Power Output: 24W

  6. 220V AC / 110V AC Output: 15W (for integrated single-drive units)

  7. Control Method: Open-loop vector control, SVPWM (Space Vector Pulse Width Modulation)

1. Manufacturing Plants: Machining and assembly, spraying and electroplating, textiles and chemical fibers

2. Process Industries: Chemicals and petrochemicals, pharmaceuticals and food, cement and building materials

3. Energy and Basic Materials: Mining, power industry


Frequent Questions
  • 1. ​​What does fault code "OUt1" indicate in the frequency converter?​​
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    Overvoltage during acceleration. It possible causes: acceleration too rapid, internal IGBT damage in the phase, interference-induced malfunction, poor drive line connection, or ground short circuit.
  • 2. How to handle overcurrent during acceleration?​​
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    Increase the acceleration and deceleration time settings.
  • 3. How to address pressure alarms in air compressor equipment?​​
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    a. Check if the solenoid valve is functioning properly.
    b. Verify the pressure control parameter settings.
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