Model Code Explanation

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

• 005: Rated power 0.55 kW, rated output current 2.0 A

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

• 4: 4‑quadrant operation (regenerative braking, grid energy feedback)

• 20: Integrated PROFIBUS‑DP fieldbus interface (replaces standard firmware; no STO safety function)

Technical Specifications

Input

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

• Frequency: 50/60 Hz (±10%)

• Rated input current: 1.6 A (at 400 V)

Output

• Rated power: 0.55 kW

• Rated output current: 2.0 A

• Apparent power: 1.4 kVA

• Frequency range: 0–400 Hz

• Overload capacity: 125% continuous; 150% for 60 s

Control & Interfaces

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

• Digital I/O: 6 in / 2 out / 1 relay

• Analog I/O: 2 in / 2 out

• Fieldbus: PROFIBUS‑DP (9‑pin D‑connector, auto baud rate 9.6 kBaud–1.5 MBaud, station address 0–125 via DIP switch)

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

Mechanical & Environmental

• Protection class: IP20

• Operating temperature: 0 °C to +45 °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 regeneration – Braking energy fed back to grid, no external brake resistor needed.

2. Integrated PROFIBUS‑DP – Ready for industrial network communication, supports standard GSD file (SEW_3100.GSD).

3. Compact size – Small footprint (Size 0) for easy cabinet integration.

4. Full protection – Comprehensive fault protection for long‑term stability.

Typical Applications

Related Models

• 31C005-503-4-20: 0.55 kW, 4‑quadrant, PROFIBUS‑DP

• 31C005-503-4-00: 0.55 kW, 4‑quadrant, standard (no fieldbus)

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