The CHINT NVF7 Inverter is a next-generation, high-performance variable frequency drive (VFD) designed for precise motor control, energy efficiency, and intelligent automation. Equipped with advanced vector control algorithms, it delivers 200% starting torque at 0.25 Hz and supports open-loop and closed-loop operation. With built-in PLC logic, MODBUS communication, and comprehensive protection features, the NVF7 ensures stable, efficient performance for heavy-duty applications in manufacturing, HVAC, water treatment, and energy systems.

• Standards: IEC/EN 61800-2, IEC/EN 61800-5-1
• Input Voltage: 3-phase AC 525V（-15%）~690V（+10%）, 3-phase AC 380V（-15%）~480V（+10%）, 3-phase AC 230V（±15%）, single-phase AC 230V（±15%）
• Output Frequency Range: 0–500 Hz
• Control Mode: Sensorless Vector Control (SVC), Close-loop Vector Control (CVC), V/F Control
• Starting Torque: 200% at 0.25 Hz (SVC)
• Speed Control Accuracy: ±0.2% (SVC)
• Overload Capacity: Heavy Duty: 150% for 1 minute; Light Duty: 120% for 1 minute
• Carrier Frequency: Adjustable 1–15 kHz
• Built-in PLC Function: Supports 16-step sequence programming
• Built-in Communication: MODBUS-RTU via RS-485
• Optional Communication Cards: PROFIBUS-DP, CANopen, EtherCAT, Profinet
• Protection Functions: Overvoltage / Undervoltage, Overcurrent / Overload, Short Circuit, Ground Fault / Overheating, Stall Prevention / Phase Loss
• Braking Function: Built-in braking unit (≤ 30 kW); External braking resistor supported
• PID Function: Integrated for closed-loop pressure, temperature, and flow control
• Control Terminals: 8 Digital Inputs; 2 Analog Inputs (0–10 V / 4–20 mA); 1 Pulse Input; 2 Relay Outputs; 2 Analog Outputs
• Display: LED/LCD keypad with real-time monitoring; Detachable and remote-mountable panel
• Applicable Motor Power: Single-phase AC 230V: 0.4kW~4.0kW; 3-phase AC 230V: 0.4kW~55kW; 3-phase AC 380V~480V: 0.4kW~630kW; 3-phase AC 525V~690V: 3.0kW~560kW
• Environmental Ratings: Ambient Temperature: −10 °C to +50 °C; Altitude: ≤ 2000 m (derate 1%/100 m above 1000 m); Humidity: ≤ 95% non-condensing
• Cooling Method: Forced air cooling
• Protection Level: IP20
• Installation Type: Wall or cabinet mount
• Applications: Pumps and Fans, Compressors and Conveyors, HVAC and Building Automation, Textile, Plastics, and Machine Tools, Water Supply and Wastewater Treatment