Model Code Explanation

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

• 011: Rated power 1.5 kW, rated output current 3.2 A

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

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

• 20: PROFIBUS‑DP interface (standard firmware, no STO)

Technical Specifications (Base Drive Same as 31C011-503-4-00)

Input

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

• Frequency: 50/60 Hz (±10%)

• Rated input current: 2.8 A

Output

• Rated power: 1.5 kW

• Rated current: 3.2 A

• Apparent power: 2.2 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 inputs / 2 outputs / 1 relay output

• Analog I/O: 2 inputs / 2 outputs

• Fieldbus: PROFIBUS‑DP (slave, up to 12 Mbps)

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

Mechanical & Environmental

• Protection class: IP20

• Operating temperature: 0 °C to +45 °C (derating 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 Difference: 20 vs 00

• 00: Standard I/O only, no fieldbus

• 20: Integrated PROFIBUS‑DP for high‑speed communication with PLC/controller

Typical Applications

• 1.5 kW three‑phase asynchronous motors

• Conveyors, packaging machines, fans, pumps

• Automation lines requiring PROFIBUS‑DP networking

Related Models

• 31C011-503-4-00: 1.5 kW, 4‑quadrant, no fieldbus

• 31C015-503-4-20: 2.2 kW, 4‑quadrant, PROFIBUS‑DP

• 31C011-503-4-21: 1.5 kW, 4‑quadrant, PROFIBUS‑DP + STO