Model Code Explanation

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

• 007: Rated power 0.75 kW, rated output current 2.4 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

• 0: Standard firmware configuration, 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: 2.0 A

Output

• Rated power: 0.75 kW

• Rated output current: 2.4 A

• Apparent power: 1.7 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 inputs, 2 outputs, 1 relay output

• Analog I/O: 2 inputs, 2 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 required above 40 °C)

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

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

• Weight: approx. 2.1 kg

Key Features

1. 4-quadrant energy regeneration

   Braking energy is recycled to the power grid. External brake resistors are not required, which simplifies system design and reduces operating costs.
2. Compact structure

   Miniature size saves cabinet space, easy for installation and layout.
3. Reliable control performance

   Dual control modes deliver stable torque and speed regulation, adapting to various light industrial loads.
4. Complete protection system

   Multiple fault protections ensure stable and long-term operation in industrial environments.

Typical Applications

Related Models

• 31C005-503-4-00: 0.55 kW, 4-quadrant regenerative inverter

• 31C007-503-4-20: 0.75 kW, 4-quadrant regenerative inverter with PROFIBUS-DP

• 31C011-503-4-00: 1.1 kW, 4-quadrant regenerative inverter