An industrial control device specifically designed for air compressors, enabling stable air pressure, energy savings, and equipment protection through motor speed regulation.
I. Core Functions
Stable Air Pressure Control
Adopts PID closed-loop control technology to monitor supply pressure in real time and automatically adjust motor speed, eliminating pressure fluctuations caused by frequent loading/unloading in traditional fixed-frequency machines.
Energy Efficiency
Reduces energy consumption by lowering motor speed. Saves 10–20% during loaded operation and ~10% during unloaded operation, with overall energy savings of 20–60%.
Principle: Motor power is proportional to the cube of speed (e.g., 50% speed reduction reduces power to 12.5%).
Soft Start & Equipment Protection
Limits starting current (<2× rated current), avoiding grid and mechanical shocks, extending motor lifespan by >30%.
Reduces valve wear from frequent switching, lowering maintenance costs.
Multi-Motor Compatibility
Supports asynchronous motors and custom synchronous motors (SPMSM/IPMSM) across a 7.5–415kW power range.
II. Technical Features
Advanced Control Technology
Utilizes VVC+ vector control or SPWM/SVPWM techniques to optimize switching losses and harmonic content, with a power factor >0.95.
Wide Voltage & Overload Capacity
Input voltage range: -20% to +10%. Models ≥37kW integrate DC reactors to enhance power factor and suppress harmonics.
Overload capacity: 150% rated current for 1 minute, 200% instantaneous for 1 second.
Intelligence & Communication
Built-in MODBUS/CANOPEN interfaces for remote monitoring and parameter adjustment.
Real-time display of current, voltage, and frequency on the operation panel; optional COPY card for rapid parameter cloning.
Environmental Adaptability
Operating temperature: -10°C to 50°C (derated for 40–50°C), IP20 protection, dust/moisture-resistant design.
III. Application Advantages
Pharmaceutical Industry
Precisely controls gas flow, pressure, and temperature to meet cleanliness requirements for drug packaging and filling.
Electronics Industry
Provides high-quality gas for semiconductor and precision component production, ensuring stable air supply.
General Industrial Scenarios
Replaces traditional fixed-frequency machines, reducing floor space and enabling compact piping layouts.
Selection Guidelines
Power Matching: Select based on motor power, reserving 20% margin for overload demands.
Control Requirements: Prioritize closed-loop models
Environmental Adaptability: Choose derated models
Communication & Scalability: Opt for MODBUS/CANOPEN-compatible models for remote monitoring needs.
Welcome to inquire about the frequency converter that is compatible with your air compressor model
