MM07B‑503 (SEW MOVIMOT B‑Series, 0.75 kW)
May 28, 2026

MM07B‑503 (SEW MOVIMOT B‑Series, 0.75 kW)

MM07B‑503‑00 (short MM07B‑503) is a 0.75 kW motor‑mounted frequency inverter from SEW‑EURODRIVE’s MOVIMOT B‑series. It is a compact, decentralized drive for direct mounting on SEW motors, widely used in conveyors, packaging machines, and general automation. This model is discontinued and replaced by MM07D‑503‑00.

Description

1. Product Overview

MM07B‑503‑00 (short MM07B‑503) is a 0.75 kW motor‑mounted frequency inverter from SEW‑EURODRIVE’s MOVIMOT B‑series. It is a compact, decentralized drive for direct mounting on SEW motors, widely used in conveyors, packaging machines, and general automation. This model is discontinued and replaced by MM07D‑503‑00.

2. Model Code

  • MM: MOVIMOT decentralized drive

  • 07: 0.75 kW rated power

  • B: B‑series (compact, mid‑generation)

  • 503: 3‑phase 380–500 V AC

  • ‑00: standard version

  • Part number: 8230242

3. Technical Specifications

3.1 Electrical

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

  • Rated input current: 1.9 A

  • Rated output power: 0.75 kW

  • Rated output current: 2.5 A

  • Output frequency: 2–100 Hz

  • Control modes: U/f, basic vector (VFC)

  • Digital I/O: 4 programmable inputs / 2 programmable outputs

  • Communication: RS‑485 (Modbus RTU optional)

  • Brake control: integrated (for SEW brake motors)

  • Overload: 150% for 60 s

  • EMC: no integrated filter (external filter required)

3.2 Mechanical & Environmental

  • Protection class: IP55

  • Cooling: natural convection

  • Dimensions (W×H×D): approx. 135 × 182 × 105 mm

  • Weight: 2.9 kg

  • Operating temperature: ‑25 °C to +40 °C

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

4. Key Features

  • Compact design: direct motor mounting saves cabinet space.

  • Programmable I/O: flexible for on‑site logic and sensor connection.

  • Integrated brake control: works with SEW brake motors for stopping/holding.

  • Simple commissioning: DIP switches for basic setup; optional software for advanced parameters.

  • Cost‑effective: reliable for standard applications without Ethernet needs.

5. Status & Replacement

  • MM07B‑503: discontinued (B‑series phased out).

  • Replacement: MM07D‑503‑00 (D‑series, integrated EMC filter, Ethernet option, higher performance).

6. Typical Applications

  • Logistics conveyors, material handling systems

  • Packaging machinery, small processing lines

  • Fans, pumps, and general‑purpose automation

7. Installation & Wiring

7.1 Mechanical

  1. Mount directly on SEW motor flange (DRS/DRE series).

  2. Tighten mounting screws to 3.0 Nm.

  3. Ensure unobstructed airflow; avoid direct heat sources.

7.2 Electrical

  • Power (L1/L2/L3/PE): 3‑phase 380–500 V AC, reliable earth connection.

  • Motor (U/V/W/PE): shielded cable to motor terminals.

  • Control: 24 V DC for run/stop, direction, and enable signals.

  • Communication: RS‑485 for networking (optional Modbus RTU).

8. Commissioning

  1. Check wiring and insulation before applying power.

  2. Set motor parameters, control mode, and address via DIP switches.

  3. Power on; steady green LED indicates standby.

  4. Test run at low speed; check for noise or vibration, then ramp to operating speed.

9. Status & Faults

9.1 LED Indications

  • Steady green: ready/standby

  • Flashing green: running

  • Flashing red: fault (overcurrent, overvoltage, overtemperature, communication error)

9.2 Common Faults

  • Overcurrent: short circuit, overload, or motor winding fault.

  • Overvoltage: input voltage surge or regenerative voltage from the motor.

  • Overtemperature: poor ventilation or ambient temperature exceeding +40 °C.

  • Communication error: faulty RS‑485 cable, incorrect address, or network mismatch.

10. Maintenance

  • Clean heat sink and dust buildup every 6 months.

  • Check terminal tightness and cable insulation regularly.

  • Replace damaged seals or cables to maintain IP55 protection.

11. Storage & Disposal

  • Store in a dry, clean area at ‑25 °C to +70 °C.

  • Dispose of according to local WEEE regulations; recycle metals, plastics, and electronic components.


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