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 recycled to the grid. No external brake resistor is required, which reduces costs and saves installation space.
2. Compact design

   Small footprint for easy installation inside standard control cabinets.
3. Stable control performance

   Two control modes deliver steady torque and precise speed regulation for medium industrial loads.
4. Comprehensive protection

   Multiple protection functions ensure reliable long-term 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