Fan And Water Pump Frequency Converter 380V Three Phase Multi Stage Protection

The 380V Three-Phase Fan & Water Pump Frequency Converter is a high-performance drive specifically optimized for centrifugal loads. Designed for AC 50/60Hz industrial systems, this inverter (VFD) provides precision speed regulation for motors ranging from 3.7kW up to 18.5kW.

In traditional systems, fans and pumps run at constant speeds with flow controlled by restrictive valves or dampers—a process that wastes immense amounts of electricity. Our vector-controlled driver allows the motor to match the actual demand of the system, often resulting in energy savings of 30% to 60%. With built-in specialized pump macros and a sophisticated PID controller, it is the ultimate solution for modernizing HVAC, irrigation, and industrial fluid systems.

• Optimized V/F & Vector Control: Delivers a smooth start-up torque and high-precision speed control, eliminating "water hammer" effects in piping and reducing mechanical stress on belts and bearings.

• Integrated PID Sleep/Wake Function: Automatically shuts down the pump when demand is zero and wakes it when pressure drops, significantly extending motor life and reducing idle power consumption.

• Smart Energy Monitoring: Real-time tracking of output frequency, voltage, and current allows operators to audit energy usage directly from the digital display.

• Multi-Stage Protection: Comprehensive protection against over-voltage, under-voltage, over-current, motor overload, and phase loss, ensuring 24/7 reliability in unmanned pumping stations.

• RS485 Modbus Communication: Seamlessly integrates with Building Management Systems (BMS) and PLCs for centralized monitoring and remote automation.

1. HVAC Systems: Controlling cooling tower fans and central air conditioning circulation pumps to maintain constant climate control.

2. Agricultural Irrigation: Managing deep-well pumps and sprinkler systems to maintain constant water pressure across varying elevations.

3. Industrial Cooling: Regulating water flow for heat exchangers and production line cooling systems.

4. Wastewater Management: Efficient speed control for aerators and sewage lift stations to handle varying inflow volumes.

• Dedicated Pump Macros: Pre-programmed parameters specifically for fluid handling allow for "out-of-the-box" setup without deep programming knowledge.

• Soft-Start Technology: Reduces the starting current of the motor, preventing voltage sags on the local grid and protecting expensive internal components.

• Dust & Moisture Protection: The internal PCB is treated with a reinforced conformal coating to resist the humid and dusty conditions typical of mechanical rooms and pump houses.

• Compact Footprint: High power density design allows for side-by-side mounting in control cabinets, reducing the cost of enclosure hardware.

Q: Can I connect a pressure sensor directly to this VFD?

A: Yes. The drive supports 4-20mA or 0-10V pressure transducers. Using the internal PID loop, the VFD will automatically adjust the motor speed to maintain your set pressure.

Q: Is this VFD suitable for heavy-duty loads like crushers or extruders?

A: This specific series is optimized for quadratic torque loads (Fans/Pumps). For constant torque loads (Heavy Industrial), we recommend selecting a model one size larger or choosing our heavy-duty series.

Q: Does it support remote start/stop?

A: Absolutely. You can control the drive via the RS485 port, external switches, or by using a remote potentiometer for speed adjustment.