Model Code Explanation

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

• 014: Rated power 1.5 kW (light‑duty), 0.75 kW (heavy‑duty); rated output current 4 A

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

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

• 00: Standard I/O only, no fieldbus interface, 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: 3.5 A

Output

• Rated power: 1.5 kW (light‑duty), 0.75 kW (heavy‑duty)

• Rated output current: 4 A

• Apparent power: 2.8 kVA

• Frequency range: 0–400 Hz (optional 0–599 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: None (standard I/O only)

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

Mechanical & Environmental Data

• 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. 105 × 188 × 190 mm

• Weight: approx. 2.5 kg

Key Features

1. 4‑quadrant energy regeneration

   Braking energy is recycled to the grid, eliminating the need for external brake resistors, reducing costs and saving space.
2. Compact size

   Small footprint for easy installation in standard control cabinets.
3. Flexible motor control

   Supports both V/F and sensorless vector control for different application needs.
4. Robust protection

   Comprehensive protection functions ensure reliable operation in harsh industrial environments.

Typical Applications

• 1.5 kW light‑duty / 0.75 kW heavy‑duty three‑phase asynchronous motors

• Conveyors, packaging machinery, fans, pumps and other general automation equipment

• Systems requiring energy recovery but no fieldbus communication

Related Models

• 31C014-503-4-20: 1.5 kW, 4‑quadrant, with PROFIBUS‑DP

• 31C011-503-4-00: 1.1 kW, 4‑quadrant, no fieldbus

• 31C015-503-4-00: 2.2 kW, 4‑quadrant, no fieldbus