Model Code Explanation

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

• 040: Rated power 5.5 kW, rated output current 9.6 A

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

• 4: 4‑quadrant operation, regenerative braking, grid feedback

• 00: Standard firmware, no STO, no fieldbus module

Technical Specifications

Input

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

• Frequency: 50 / 60 Hz (±10%)

• Rated input current: 8.8 A @ 400 V

Output

• Rated power: 5.5 kW (7.5 HP)

• Rated output current: 9.6 A @ 400 V

• Apparent power: 6.6 kVA

• Frequency range: 0–400 Hz

• Overload: 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

• Safety: No STO

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

Mechanical & Environmental

• Protection class: IP20

• Operating temperature: 0 °C to +45 °C (derate >40 °C)

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

• Dimensions (W×H×D): approx. 170 × 184 × 281 mm

• Weight: 5.74–8.0 kg (depending on configuration)

Key Features

1. 4‑quadrant energy regeneration

   Recycles braking energy back to the grid; no external brake resistor required.

2. Compact and cost‑effective

   IP20 design, small footprint, standard I/O for general‑purpose applications.

3. Reliable motor control

   V/F and sensorless vector control for stable speed and torque.

4. Comprehensive protection

   Full fault protection ensures long‑term, stable operation.

Typical Applications

Related Models

• 31C040-503-4-05: 5.5 kW, 4‑quadrant, with STO, no fieldbus

• 31C040-503-4-20: 5.5 kW, 4‑quadrant, PROFIBUS‑DP, no STO

• 31C040-503-4-25: 5.5 kW, 4‑quadrant, PROFIBUS‑DP + STO