18.5kw Frequency Drive 380V 220V Motor

The CSIVEI 18.5kw Frequency Drive 380V 220V Motor is a high-power solution for large-scale industrial equipment. Engineered for heavy machinery, centrifugal chillers, mining conveyors, and large water treatment pumps, this drive delivers robust performance with advanced motor control algorithms. Key features include high overload capacity, built-in DC reactor for harmonic mitigation, multiple communication interfaces, and configurable I/O expansion. The heavy-duty enclosure with reinforced cooling system ensures reliable operation in high-temperature industrial environments. Combining energy-saving capabilities with intelligent protection features, the CSIVEI 18.5kw Frequency Drive 380V 220V Motor maximizes system uptime and operational efficiency for large-power applications.

Core Parameters and Specifications

Typical Applications

The CSIVEI 18.5kw Frequency Drive 380V 220V Motor is engineered for heavy-duty industrial applications requiring high starting torque and continuous duty:

●  Large pumps – irrigation pumps, drainage pumps, main water supply pumps

●  Centrifugal compressors – industrial air compressors, refrigeration systems

●  HVAC chillers – screw chillers, centrifugal chillers, large air handlers

●  Mining equipment – slurry pumps, ventilation fans, crushers

●  Metalworking machinery – lathes, milling machines, presses

With advanced vector control and multiple communication options, it integrates seamlessly into automated production lines.

Robust Protection & Reliability

Built to withstand demanding industrial environments, the CSIVEI VFD series incorporates multiple protection mechanisms to ensure continuous operation and extended service life.

Comprehensive Motor Protection – Integrated protection includes over-voltage, under-voltage, over-current, over-temperature, phase loss, and short circuit protection. The drive automatically trips or limits output to prevent damage to both the drive and the connected motor.

Thermal Management – Intelligent fan control adjusts cooling based on internal temperature and load conditions, minimizing noise and extending fan lifespan. High-power models feature reinforced heatsink designs for enhanced thermal dissipation.

Environmental Protection – Standard IP20 enclosure suitable for control panel installation. Optional IP40/IP54/IP66 enclosures are available for applications in dusty, humid, or wash-down environments. Conformal coating on PCBs provides additional protection against moisture and contaminants.

Built-in EMC Filter – Selected models include an integrated electromagnetic compatibility filter, simplifying compliance with CE and other EMC standards and reducing installation costs.

FAQs

Can I use a single‑phase input VFD with a three‑phase motor?

Yes. CSIVEI's 18.5kw Frequency Drive 380V 220V Motor take single‑phase input and output three‑phase power to the motor. It's a common setup when only single‑phase power is available but you want the efficiency and reliability of a three‑phase motor. Just make sure the motor's voltage matches the drive's output—230V three‑phase.

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 communication protocols are supported?

All CSIVEI drives come with Modbus RTU over RS485 as standard. Optional modules are available for Profibus DP, Profinet, Ethernet/IP, CANopen, and DeviceNet. These let you integrate with major PLC and SCADA systems for remote monitoring, parameter changes, and centralized control.

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.

How do I troubleshoot common faults?

The drive shows fault codes on the keypad for quick diagnosis:

●  OC (over‑current) – check for shorts, motor winding issues, or accel time too short

●  OV (over‑voltage) – check the braking resistor (if used) or decel time too short

●  UV (under‑voltage) – check input power and wiring

●  OH (over‑temperature) – check the cooling fan, ambient temperature, and mounting clearance

●  OL (overload) – check the motor load, increase accel time, or consider upsizing the drive

●  The manual has a full fault code table with detailed steps. If something's still off, CSIVEI tech support can help.

Customer Case

A food processing plant needed to synchronize multiple conveyor sections with varying product throughput. Manual speed adjustments were time-consuming and led to product pile-ups or gaps.

Solution: Three CSIVEI 18.5kw Frequency Drive 380V 220V Motors were installed on key conveyor sections, linked via Modbus communication to the central PLC for coordinated control.

Results:

1.Conveyor speeds automatically synchronized with production rate

2.Product flow optimized, reducing downtime by 25%

3.Remote speed adjustment via HMI eliminates manual intervention

4.Quick changeover between product lines reduced from 30 minutes to 10 minutes

5.The solution has been expanded to six additional production lines.