1. Product Overview

2. Model Code Explanation

• 1122: Power rating, 4.0 kW

• 403: 3-phase 380–500 V AC, no built-in EMC filter

• 4: Four-quadrant operation with regenerative braking function

• 00: Standard firmware, no fieldbus module and STO safety function

3. Main Technical Parameters

• Input: 3-phase 380–500 V AC (-30% / +30%), 50/60 Hz

• Output: 3-phase 0–400 V, frequency range 2–127.5 Hz, rated current 8 A, compatible with 4.0 kW motors

• Rated capacity: 3.9 kVA / 4.0 kW

• Control modes: V/F open-loop control, sensorless vector control (VFC)

• Overload capacity: 125% rated current continuously, 150% rated current for 60 seconds

• I/O Interfaces: 6 digital inputs, 2 digital outputs, 1 relay output, 2 analog inputs, 2 analog outputs

• Protection functions: Overcurrent, overvoltage, undervoltage, overtemperature and earth fault protection

• Protection class: IP20

• Operating temperature: 0 °C ~ +45 °C

• Weight: Approx. 7.5 kg

4. Product Features

1. Four-quadrant design enables regenerative braking, suitable for equipment with frequent deceleration and overhauling loads.

2. Designed for standard 3-phase 400 V industrial power supply. An external EMC filter is required to meet EMC Class C2 standards.

3. Adopts sensorless vector control, eliminating the need for encoders and cutting wiring costs.

4. Robust and compact structure, ensuring reliable long-term continuous operation.

5. Typical Applications

• Conveyors, lifting equipment and cranes with regenerative loads

• Fans, water pumps and compressors requiring rapid stop

• Packaging, textile machinery and other general industrial equipment

• Drive system for 4.0 kW three-phase motors under 400 V power grid

6. Difference from 1122-403-1-00

• 1122-403-4-00: Four-quadrant type with regenerative braking, for dynamic loads

• 1122-403-1-00: One-quadrant type without braking function, cost-effective for ordinary loads