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Veichi Frequency Inverters

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VEICHI: when we recommend it, when we point customers to Delta or Schneider

VEICHI Industrial: Chinese manufacturer since 2007. Our catalogue holds 112 models across 6 series. Typical customer this year is a small workshop, water supply, pump station, conveyor in the 5-22 kW range. In that niche Veichi beats Delta and Schneider on price (roughly 30-40% lower) with comparable reliability for the AC10 and AC310 series. Where the project needs EtherCAT, complex positioning or integration with European PLCs, we ship other brands; for basic pump and fan control, Veichi closes the task.

We keep popular ratings 1.5/2.2/4/5.5/7.5/11/15/22 kW in stock at our Kyiv warehouse. 24-month warranty, delivery across Ukraine in 1-3 days. Before the order we ask three things: mains type (220 or 380 V), what you drive (pump, fan, conveyor) and whether Modbus is required.

VEICHI VFD Series

Popular Veichi Series and Models

AC01: Compact Series for Single-Phase Supply

11 models, 0.4-7.5 kW. Single-phase 220 V input, three-phase 220 V output. We ship this for small workshops, machine tools, submersible pumps in places without three-phase power. One note: starting current on the 220 V line is high, so we recommend a C25-C32 main breaker.

AC10: General-Purpose Series for Low and Medium Power

13 models, 0.75-22 kW. Three-phase 380 V supply, sensorless vector control. Workhorse for pumps and fans, plus conveyors at small or medium plants. Over the last 12 months our top sellers are AC10-T3-2R2G (2.2 kW), AC10-T3-5R5G (5.5 kW) and AC10-T3-011G (11 kW).

AC310: Flagship Series for Heavy Industry

35 models, 0.75-400 kW. Overload capacity 180% for 3 s. Vector control with or without encoder. We deploy this on cranes, lifts, compressors, crushers, mills. From our sales we see: when a customer needs to start a crane or large compressor, AC10 is undersized for the inrush, AC310 is the right pick.

AC70: Multi-Function Series with Extended Protocols

28 models, 0.75-350 kW. Modbus RTU, CANopen, PROFIBUS-DP. We ship this for automated production lines with SCADA supervision, when the VFD must talk to a PLC or SCADA layer.

AC70E: Compact Version of the AC70 Series

3 models, 0.75-2.2 kW. Stripped-down AC70 for tasks with minimal communication needs. Compact enclosure for tight installations.

SI23: Dedicated Series for Pumping Stations

22 models, 1.5-200 kW. Built-in PID controller, automatic pump switching, dry-run protection. Designed for water supply and irrigation (municipal pump stations too); we mostly use it on 11-30 kW objects with 2-3 pumps in cascade.

Which VEICHI Series to Choose?

Single-phase 220 V supply, up to 7.5 kW: VEICHI AC01. Pump or fan up to 22 kW on three-phase: VEICHI AC10. Crane, lift or heavy load up to 400 kW: VEICHI AC310. Pumping station with PID control: VEICHI SI23. Production line with Modbus/Profibus: VEICHI AC70.

Equipment Advantages

When selecting equipment, consider overload capacity, integrated EMC filtering, and industrial protocol support.

Frequently Asked Questions

How does a frequency inverter work?

The input rectifier turns mains AC into DC, capacitors smooth it, and the output IGBTs use PWM to build three-phase AC at the frequency you set. Motor speed follows that frequency while the drive trims the voltage itself. Veichi AC310 runs vector control with overload headroom for heavy starts, while SI23 replaces that with an MPPT algorithm so it can run straight off solar panels.

Which frequency inverter converts 380 to 220 V?

A single-phase 220 V input gives 3×220 V out; no drive can step that up to 380. What Veichi does offer is the widest single-phase range we stock: the AC310-T/S2 series is available from 0.75 to 15 kW, plus AC01 and AC10 up to 2.2 kW. A 380 V three-phase motor will run if its nameplate shows 380/220 V and you move the links to delta. Above 4 kW on a single-phase supply, ask us first about input current and breaker sizing.

What is a frequency inverter?

A device that controls induction-motor speed by changing the supply frequency. Without one the motor has a single speed; with one you get any speed in the working range plus a controlled ramp. We stock 103 Veichi models across five series: AC01 to 7.5 kW, AC10 to 22 kW, AC310 to 400 kW, CH310E to 37 kW and the solar SI23 to 200 kW. Prices start at UAH 5,800 with VAT, the most affordable brand in our drive catalogue.

What is a frequency converter needed for?

So the machine runs at its own speed rather than one nameplate speed. Our Veichi units most often go onto pumps: borehole, surface and booster sets, where the drive holds pressure from a sensor and drops into sleep when nothing is drawing. The second case is ventilation and compressors that need a soft start. The third is solar pumping on SI23, which runs directly from panels with no batteries.

How do I set up a frequency inverter?

On the Veichi AC310 the sequence runs like this. Group F02 holds motor data: power, voltage, current and speed from the nameplate. F01.00 sets the run command source, F01.02 the frequency reference source. Acceleration and deceleration times sit in F01.40. For a pressure-holding pump you enable PID in group F07: F07.00 picks the reference source and F07.05-F07.07 tune the controller itself. Step-by-step guides for AC01, AC10 and AC310 are in our instructions section.

What is a VFD?

A variable frequency drive, also called a frequency converter or a motor inverter. Same piece of equipment under different names. In conversation our customers say "a drive for a borehole" or "a 5.5 kW drive" far more often than the full term. In the Veichi catalogue that means AC01, AC10, AC310, CH310E and SI23; tell us the motor rating and the supply type and we will point at the right one.