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AC Drives And Frequency Inverters

General purpose and high performance vector control AC drives from 0.4 kW to 500 kW, for induction motors and permanent magnet synchronous motors.

Who This Range Is For

  • Machine builders and OEMs who need speed and torque control on their own equipment
  • Panel builders and system integrators specifying drives for industrial plants
  • Distributors looking for a Chinese vector control drive to replace imported brands
  • End users in cement, textile, metallurgy, HVAC, oil and gas, water treatment, chemical, machine tools and hoisting

Where It Is Used

KEWO ac drives / vfds are used in industrial automation, cement, textile, metallurgy, HVAC, oil and gas, water treatment, chemical, machine tools, hoisting, agriculture, farming and irrigation.

The Range

Frequency Inverter

AD100 Mini AC Drive / VFD

AD100 Mini AC Drive / VFD

Compact general purpose VFD with V/F and sensorless vector control, RS485 and 16 segment speed control built in.

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AD350 Vector Control AC Drive

AD350 Vector Control AC Drive

Small and smart current vector control drive for induction motors, with rich terminal functions and PG card option.

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AD800 Vector Control AC Drive

AD800 Vector Control AC Drive

High performance vector control drive with open loop and closed loop vector modes, torque control and wide speed range.

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AD800S AC Drive For PMSM

AD800S AC Drive For PMSM

AD800S drives permanent magnet synchronous motors for energy saving retrofits on existing machines.

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AC Servo Drive

Choosing a model: size the unit to motor or pump current, not only to kW, and check the supply voltage and the enclosure rating the site needs. Send the nameplate data and we will confirm the model.

Related Reading

FAQ

AC Drives / VFD — Questions We Get Asked

What is the difference between the AD100, AD350 and AD800?

AD100 is the compact general purpose drive. AD350 is the small vector control drive with a richer terminal and option card set. AD800 is the high performance model with open loop vector, closed loop vector and torque control, and is the one used where low speed torque, fast dynamic response and a wide speed range matter.

Can KEWO drives run permanent magnet motors?

Yes. The AD series implements current vector control for both induction motors and permanent magnet synchronous motors. AD800S is the version specifically for PMSM energy saving, and the AS850 servo drives handle PMSM in spindle and injection moulding duty.

What if the drive has to sit in a dusty or humid area?

SD350 and SD800 are the sealed IP54 versions of the drive for exactly that. For outdoor solar installations there is a separate IP65 solar pump inverter.

Do I need a filter or a reactor with the drive?

It depends on the installation. Long motor cables usually want a dv/dt or sine wave filter, sites with EMC limits want input and output EMC filters, and higher power drives benefit from an AC or DC reactor for harmonic reduction. All of these are listed under peripheral equipment.

What guarantee comes with an AD series drive?

18 months free repair. If a unit is damaged inside the guarantee period we repair it at no charge when it is returned, or send free spare parts and components for you to repair on site.

Request A Quote For AC Drives / VFD

Send the model, the quantity and the supply voltage, or just describe the application and let an engineer pick the model.

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