MM05B-503 MOVIMOT Decentralized Inverter | SEW-EURODRIVE
May 28, 2026

MM05B-503 MOVIMOT Decentralized Inverter | SEW-EURODRIVE

MM05B-503 is a 0.55 kW motor-mounted frequency inverter of SEW-EURODRIVE MOVIMOT B-series. It acts as an intermediate upgraded version between A-series and C-series, designed for decentralized speed control of three-phase motors. It is widely used in conveyors, packaging machines and general industrial automation.

Description

1. Product Overview

MM05B-503 is a 0.55 kW motor-mounted frequency inverter of SEW-EURODRIVE MOVIMOT B-series. It acts as an intermediate upgraded version between A-series and C-series, designed for decentralized speed control of three-phase motors. It is widely used in conveyors, packaging machines and general industrial automation.

2. Model Code Definition

  • MM: MOVIMOT decentralized drive system

  • 05: Rated power 0.55 kW

  • B: B-series (transitional generation)

  • 503: 3-phase 380–500 V AC power supply

  • -00: Standard configuration (full model: MM05B-503-00)

3. Technical Specifications

3.1 Electrical Parameters

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

  • Rated Input Current: 1.6 A

  • Rated Output Power: 0.55 kW

  • Rated Output Current: 2.5 A

  • Output Frequency Range: 2 – 100 Hz

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

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

  • Communication: RS-485 interface (optional)

  • Brake Function: Integrated brake control for SEW brake motors

  • Overload Capacity: 150% rated current for 60 seconds

3.2 Mechanical & Environmental Parameters

  • Protection Class: IP55

  • Cooling Method: Natural convection

  • Dimensions (W × H × D): Approx. 120 × 180 × 80 mm

  • Weight: Approx. 2.6 kg

  • Operating Temperature: -25 °C to +40 °C

  • Storage Temperature: -25 °C to +70 °C

4. Main Features

  1. Higher output current and better load capacity compared with MM05A.

  2. Programmable digital I/O for flexible on-site configuration.

  3. Compact structure for direct mounting on motor housing, saving cabinet wiring.

  4. IP55 protection grade, suitable for ordinary dusty and moist industrial environments.

  5. Simple commissioning via DIP switches for basic parameter setting.

  6. Support external RS-485 communication for network control.

5. Comparison with Adjacent Series

  • MM05A: Lower output current, fixed I/O assignment, limited functions.

  • MM05B: Improved output current, programmable I/O, enhanced performance.

  • MM05C/MM05D: Newer generations with wider frequency range, integrated EMC filter and optional STO safety function.

6. Typical Applications

  • Conveyor systems for logistics and production lines

  • Packaging machinery and material handling equipment

  • Small fans, pumps and general automated machinery

7. Installation & Wiring

7.1 Mechanical Installation

  1. Mount the unit directly on the flange of SEW three-phase motor.

  2. Tighten mounting screws to a torque of 3.0 Nm.

  3. Keep clear ventilation space around the unit and avoid direct heat radiation.

7.2 Electrical Wiring

  1. Power Terminals (L1, L2, L3, PE): Connect 3-phase 380–500 V AC power and reliable protective earth.

  2. Motor Terminals (U, V, W, PE): Use shielded cables to connect to the motor.

  3. Control Terminals: Connect 24 V DC control power, run/stop and direction signals.

  4. Communication Port: Connect RS-485 cable for remote networking if needed.

7.3 EMC Requirements

  • Use shielded cables for motor and signal lines. Ground both ends of the shield.

  • Separate power cables and signal cables to reduce electromagnetic interference.

8. Commissioning

  1. Inspect all wiring and insulation before power supply.

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

  3. Switch on the main power; the LED indicates standby status.

  4. Perform trial run at low speed first, check abnormal noise and vibration, then gradually increase to normal operating speed.

9. Status Indication & Common Faults

9.1 LED Status

  • Steady green: Unit is ready for operation

  • Flashing green: Motor is running

  • Flashing red: Fault alarm

9.2 Typical Faults

  • Overcurrent: Caused by short circuit, overload or motor failure.

  • Overvoltage: Abnormal input power or regenerative voltage surge.

  • Overtemperature: Poor ventilation or excessive ambient temperature.

  • Communication error: Damaged RS-485 cable or incorrect address setting.

10. Maintenance

  1. Clean dust on the surface and heat sink every 6 months.

  2. Check tightness of all terminals and cable condition regularly.

  3. Replace aged or damaged cables and seals in time.

11. Storage & Disposal

  • Store the product in a dry and clean environment within the specified temperature range.

  • Dispose of the product in accordance with local WEEE regulations. Sort metal, plastic and electronic components for professional recycling.


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