320kw VFD Inverter for 3 Phase Motor

The CSIVEI 320kw VFD Inverter for 3 Phase Motor is a versatile entry-level drive for three-phase motor control. Designed for small industrial equipment, workshop machinery, and light automation tasks, it offers reliable performance in a compact footprint. Featuring both V/F and sensorless vector control modes, built-in PID controller, and support for external keypad or remote operation. The IP20 enclosure with side-by-side mounting capability allows efficient panel installation. With easy parameter configuration and rugged construction, it provides a solid foundation for basic motor speed control applications.

Product Parameters

Typical Applications

The CSIVEI 320kw VFD Inverter for 3 Phase Motor is the ultimate solution for ultra-high-power motor control:

Mega pumps – large-scale water supply, flood control pumping stations

Mining and minerals – large grinding mills, high-capacity crushers

Oil and gas – main pipeline pumps, gas turbine starters, compressor stations

Cement – rotary kiln drives, large fans

Marine propulsion – main propulsion drives for vessels

Engineered for continuous heavy-duty operation, this drive features advanced thermal management, redundant cooling, and extensive diagnostic capabilities.

Application-Specific Features

The CSIVEI VFD series includes specialized functions tailored for common industrial applications, simplifying system design and enhancing performance.

Built-in PID for Pump & Fan Control – Ideal for constant pressure water supply, HVAC systems, and ventilation applications. The drive accepts direct input from pressure or flow sensors and automatically adjusts speed to maintain setpoint.

Dynamic Braking – Built-in braking unit on select models allows connection of external braking resistors, enabling rapid deceleration and precise stopping for applications such as cranes, hoists, and centrifuges.

Flying Start – The drive can smoothly capture a spinning motor without first stopping it, eliminating nuisance tripping in applications with windmilling fans or freewheeling loads.

Fire Mode (Firefighter’s Mode) – In fire protection applications, the drive can override fault conditions and continue operation to ensure critical ventilation or water supply systems remain functional during emergencies.

Pump Cleaning Function – Periodically rotates the pump in reverse direction to prevent scaling and blockage in dirty water or wastewater applications, extending pump life and reducing maintenance.

FAQs

Can I use the VFD outdoors or in wash‑down environments?

Standard IP20 drives need to be in a clean, dry panel. For outdoor or harsh environments, CSIVEI offers higher IP ratings:

IP40 – good for dusty places like textile mills or woodworking

IP54/IP55 – dust‑tight and splash‑proof; works for outdoor enclosures and wash‑down areas

IP66 – fully dust‑tight and handles powerful water jets; suited for food processing, car washes, or outdoor use without extra enclosures

If corrosive gases are present, conformal coating on the PCB is recommended.

How do I choose the right 320kw VFD Inverter for 3 Phase Motor for my motor?

A few things to consider:

Motor power—the VFD should match or be slightly larger than the motor rating.

Input voltage—single‑phase 230V or three‑phase 400V, make sure it matches your supply.

Load type—constant torque loads like conveyors or extruders usually need the VFD sized at 100–120% of motor power. Variable torque loads like fans and pumps can often use a VFD matched to motor power, plus you get energy savings.

Environment—for dusty, humid, or outdoor locations, go for a higher IP rating (IP40, IP54, IP66) or put the drive in a protected enclosure.

Communication—if you need to talk to a PLC or SCADA, check that the drive supports your protocol (Modbus RTU is standard; Profibus, Ethernet/IP, etc. are optional).

CSIVEI also has a sizing tool and tech support if you want a second opinion.

Do I need an external braking resistor?

It depends. If you need rapid deceleration or the load has high inertia—like centrifuges, cranes, hoists, or winders—then yes, you'll need one. On drives that have an internal braking unit, the resistor handles the regenerative energy to avoid over‑voltage faults and shorten stopping times. For fans and pumps with slower deceleration, you can usually skip it.

What protections are built into the drive?

CSIVEI drives include a solid set of protections: over‑voltage, under‑voltage, over‑current, short circuit, over‑temperature (heatsink), phase loss on input or output, and motor overload (electronic thermal overload, I²t). These help keep things running reliably and extend equipment life.

Can I run multiple motors from one VFD?

Yes, you can run multiple motors in parallel from a single drive, as long as: the total current draw stays within the drive's output rating, each motor has its own thermal overload protection, and you're using V/F control (vector control isn't recommended for multi‑motor setups). This is common for fan arrays, conveyor sections, or pump stations where motors run at the same speed together.

Customer Case: Industrial Ventilation Fan

A furniture manufacturing facility required precise airflow control for its dust collection system. Running fans at full speed continuously was inefficient and created excessive noise.

Solution: A CSIVEI 320kw VFD Inverter for 3 Phase Motor was installed on the main exhaust fan, with a pressure sensor monitoring duct pressure to regulate fan speed.

Results:

Fan speed automatically adjusts to match dust collection demand

Energy savings of 45% during partial load operation

Noise level reduced by 12 dB, improving working conditions

Reduced mechanical wear on fan bearings and belts

The system now meets both environmental compliance and operational efficiency targets.