1. Product Overview

2. Model Code Explanation

• MM: MOVIMOT decentralized drive

• 15: 1.5 kW rated power

• C: C‑series (intermediate generation)

• 503: 3‑phase 380–500 V AC

• ‑00: standard; ‑30: AS‑Interface; ‑03: STO (rare)

• Part number: Typically 8235437 (MM15C‑503‑00)

3. Technical Specifications

3.1 Electrical

• Input: 3×380–500 V AC ±10%, 50/60 Hz

• Rated power: 1.5 kW

• Input current: ~3.7 A

• Output current: 4.0 A

• Frequency: 2–100 Hz

• Control: V/F + enhanced vector (better low‑speed torque than B‑series)

• Communication: RS‑485/Modbus RTU (standard); AS‑Interface (‑30 option)

• I/O: 4DI / 2DO (24 V DC)

• Brake: Integrated brake control (for SEW brake motors)

• Overload: 150% for 60 s

• EMC: No internal filter (external Class A required)

• PWM: 12 kHz (quieter than B‑series 8 kHz)

3.2 Mechanical & Environmental

• Protection: IP55

• Cooling: Natural convection (improved heatsink vs B‑series)

• Dimensions (W×H×D): ~135 × 180 × 105 mm

• Weight: ~1.5 kg

• Ambient temp: ‑25 °C … +40 °C

• Storage temp: ‑25 °C … +70 °C

4. Key Features (vs B‑series)

• 12 kHz PWM: Lower acoustic noise

• Enhanced vector: Better low‑speed torque and stability

• Improved thermal: More robust heatsink, same temp range

• Same mounting/footprint: Drop‑in compatible with MM15B‑503

• Optional AS‑Interface: For fieldbus integration (‑30 model)

5. Product Status & Replacement

• MM15C‑503: Discontinued (end‑of‑life), no new production

• Predecessor: MM15B‑503 (also discontinued)

• Successor: MM15D‑503‑00 (current D‑series, part no. 18215033)

  • Built‑in EMC filter

  • 16 kHz PWM (quieter)

  • STO safety option (‑03)

  • Wider temp: ‑30 °C … +40 °C

  • Fully compatible mechanically/electrically

6. Typical Applications

• Conveyor lines, sortation systems

• Packaging machinery, material handling

• Fans, pumps, general automation

• Retrofit of older B‑series systems

7. Installation & Wiring

7.1 Mechanical

• Mount directly to SEW DRS/DRE/DRP motor flange

• Torque mounting screws to 3.0 Nm

• Keep heatsink clear for airflow

7.2 Electrical

• Power: L1/L2/L3/PE → 3×380–500 V AC, solid earth

• Motor: U/V/W/PE → shielded cable to motor

• Control: 24 V DC, run/stop, direction

• Communication: RS‑485 for Modbus RTU

• EMC: Add external Class A filter near power input

8. Commissioning

1. Verify all wiring and insulation

2. Set motor parameters, I/O logic, comm address via DIP switches

3. Power on: steady green = standby

4. Low‑speed test run; check noise/vibration, then ramp to speed

9. Status & Faults

9.1 LED

• Steady green: Ready

• Flashing green: Running

• Flashing red: Fault

9.2 Common Faults

• Overcurrent: Short circuit, overload, motor fault

• Overvoltage: Supply surge, regenerative voltage

• Overtemperature: Blocked cooling, high ambient

• Comm error: Bad RS‑485 cable, wrong address

10. Maintenance

• Clean heatsink every 6 months

• Check terminal tightness and cable condition

• Replace seals if damaged (preserve IP55)

11. Storage & Disposal

• Store dry, clean, within temp range

• Dispose per WEEE; recycle metals, plastics, electronics