1.5kw Single Phase VFD Comperssor

The 1.5kw Single Phase VFD Comperssor, a versatile entry-level drive for three-phase motor control manufactured by Csivei, a professional manufacturer in China. 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, the CSIVEI 3-7.5kw VFD provides a solid foundation for basic motor speed control applications.

Core Parameters and Specifications

Typical Applications

The CSIVEI 1.5kw Single Phase VFD Comperssor handles medium-duty industrial applications requiring precise speed control and energy efficiency:

●  Pumps – centrifugal pumps, booster sets, dosing pumps

●  Fans and blowers – induced draft fans, forced draft fans, air supply units

●  Compressors – small air compressors, refrigeration compressors

●  Mixers and agitators – chemical mixing, food blending, paint mixing

●  Textile machinery – spinning frames, winding machines

With built-in PID and Modbus communication, this drive is well-suited for process control applications.

Advanced Control Technology

Our factory's quality 1.5kw Single Phase VFD Comperssor employs state-of-the-art motor control algorithms to deliver precise speed regulation and exceptional torque performance across the full speed range.

Sensorless Vector Control (SVC) – Provides high starting torque (up to 150% at 0.5Hz) without the need for an encoder, making it ideal for applications requiring stable low-speed operation such as conveyors, mixers, and hoists.

V/F Control – A classic control mode suitable for fans, pumps, and general-purpose applications where simplicity and reliability are prioritized. Auto-tuning function automatically identifies motor parameters for optimal performance.

Closed-Loop Vector Control (CLVC) – Available on select models, this mode uses an encoder feedback to achieve 0.1% speed accuracy and 200% starting torque, meeting the demands of high-precision applications like CNC spindles, extruders, and cranes.

FAQs

What's the difference between V/F control and vector control?

V/F control keeps a fixed voltage-to-frequency ratio. It's fine for fans, pumps, and general applications where precise speed control isn't critical. Vector control separates flux and torque so you can control them independently—that gives you higher starting torque (up to 150% at 0.5Hz) and better speed accuracy. Sensorless vector doesn't need an encoder; closed-loop vector does, and it pushes speed accuracy to 0.1%. Most CSIVEI drives support both, so you can pick whichever fits your application.

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

Yes. CSIVEI's 1.5kw Single Phase VFD Comperssor 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.

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 does the VFD save energy?

For variable torque loads like fans and pumps, power follows the affinity laws—it's proportional to the cube of speed. Dropping speed by 20% cuts energy use by roughly 50%. The Automatic Energy Optimization (AEO) feature reduces voltage to match actual load for extra savings. Sleep Mode also shuts the motor off during low‑demand periods, eliminating idle power draw.

Customer Case

A residential complex in Southeast Asia was experiencing fluctuating water pressure during peak usage hours, leading to tenant complaints. The existing pump system ran at fixed speed, wasting energy during low-demand periods.

Solution: A CSIVEI 1.5kw Single Phase VFD Comperssor was installed to control the main booster pump, with a pressure sensor providing feedback to the built-in PID controller.

Results:

1.Stable water pressure maintained at 4.5 bar regardless of demand

2.Energy consumption reduced by 38% compared to fixed-speed operation

3.Pump motor starts reduced from 20+ times per day to continuous smooth operation

4.Payback period achieved in 11 months

5.The system has been operating reliably for over two years with no unscheduled downtime.