Model Code Explanation

• 31C: MOVITRAC 31C series, compact regenerative drive

• 022: Rated power 3.0 kW, rated output current 6.5 A

• 503: 3-phase 380–500 V AC input, no built-in EMC filter

• 4: 4-quadrant operation with regenerative braking and grid energy feedback

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

Technical Specifications

Input

• Rated voltage: 3-phase AC 380–500 V (±10%)

• Input frequency: 50 / 60 Hz (±10%)

• Rated input current: 5.8 A

Output

• Rated power: 3.0 kW

• Rated output current: 6.5 A

• Apparent power: 4.5 kVA

• Frequency range: 0–400 Hz

• Overload capacity: 125% rated current for continuous operation; 150% rated current for 60 seconds

Control & Interfaces

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

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

• Analog I/O: 2 analog inputs, 2 analog outputs

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

Mechanical & Environmental Data

• Protection class: IP20

• Operating temperature: 0 °C to +45 °C. Power derating is required above 40 °C.

• Storage temperature: -25 °C to +70 °C

• Dimensions (W×H×D): approx. 127 × 165 × 178 mm

• Weight: approx. 2.2 kg

Key Features

1. 4-quadrant energy regeneration

   Braking energy is fed back to the grid. No external brake resistor is needed to reduce costs and save cabinet space.
2. Compact structure

   Miniature size enables flexible installation in limited space.
3. Reliable control performance

   Dual control modes provide stable torque and accurate speed regulation for medium industrial loads.
4. Comprehensive protection

   Multiple protection functions guarantee long-term stable operation in industrial environments.

Typical Applications

Related Models

• 31C015-503-4-00: 2.2 kW, 4-quadrant regenerative inverter without fieldbus

• 31C022-503-4-20: 3.0 kW, 4-quadrant regenerative inverter with PROFIBUS-DP

• 31C030-503-4-00: 4.0 kW, 4-quadrant regenerative inverter without fieldbus