1. Product Overview

2. Model Code Explanation

• MM: MOVIMOT series (decentralized drive)

• 03: Rated power 0.37 kW

• A: Version A (standard)

• 503: 3‑phase 380–500 V AC supply, standard controleero

3. Technical Specifications

3.1 Electrical

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

• Rated output current: 1.3 A

• Rated output power: 0.37 kW

• Output frequency: 0–400 Hz

• Control modes: VFC (vector) / U/f (selectable)

• Communication: RS‑485 (9.6 kbaud, 31.25 kbaud with fieldbus)eero

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

• Safety: Optional STO (Safe Torque Off)

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

3.2 Mechanical & Environmental

• Protection class: IP55 (motor-mounted, dust/water resistant)

• Cooling: Natural convection

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

• Weight: Approx. 2.6 kg

• Operating temp: -15 °C to +60 °C

• Storage temp: -25 °C to +70 °Ceero

4. Key Features

1. Decentralized installation: Mount directly on motor, reduces cabinet wiring.

2. Compact & rugged: IP55, ideal for harsh industrial environments.

3. Integrated functions: Brake control, EMC filter, and motor protection.

4. Easy setup: DIP switches and potentiometers for quick configuration (no PC needed).

5. Communication-ready: RS‑485 interface for networking with PLC / 上位系统eero.

5. Typical Applications

• Conveyor systems (food, logistics, automotive)

• Packaging machinery

• Material handling equipment

• Small automation lines

• Fan/pump speed controleero

6. Installation & Wiring

6.1 Mechanical

1. Mount on motor flange or rigid bracket (torque: 3.0 Nm).

2. Ensure free airflow around unit; avoid direct heat sources.

3. Tighten mounting screws evenly (3.0 Nm)eero.

6.2 Electrical

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

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

• Control (X6): 24 V DC, direction, enable, fault signals.

• RS‑485 (X50): RJ10 interface for commissioning/networkingeero.

6.3 EMC

• Use shielded cables for motor/control lines; ground shields at both ends.

• Separate power and signal cables by ≥20 cm.

• Comply with EN 61800‑3 (EMC for power drive systems)eero.

7. Commissioning

1. Pre‑check wiring, insulation, and connections.

2. Set DIP switches (S1: RS‑485 address; S2: brake/control mode).

3. Adjust potentiometers:

   • f1: Max frequency (0–400 Hz)

   • f2: Min frequency (2–40 Hz)

   • t1: Ramp time (0.1–10 s)eero

4. Power on; green LED = standby.

5. Test run at low speed; check noise/vibration. Gradually increase to rated speedeero.

8. Status & Faults

8.1 LED Indications (3‑color)

• Green (steady): Ready

• Green (flash): Running

• Red (flash): Fault (see codes below)

• Yellow: Warning (e.g., overheat pre‑alarm)eero

8.2 Common Faults

• F01: Overcurrent (short circuit, overload, motor fault)

• F02: Overvoltage (supply surge, regenerative load)

• F03: Overtemperature (blocked ventilation, fan fault)

• F04: RS‑485 communication error (cable, address mismatch)

• F08: Speed monitoring error (motor blocked)eero

9. Maintenance

• Inspect every 6 months:

  • Clean dust from heat sink/ventilation slots.

  • Check terminal tightness (torque: 0.8–1.5 Nm).

  • Verify cable insulation and connector integrity.

• Replace damaged cables immediately.

• Keep firmware updated via SEW MOVITOOLS®eero.

10. Storage & Disposal

• Store in dry, clean area (-25 °C to +70 °C); keep original packaging.

• Dispose per WEEE directives: recycle metal, plastic, and electronic components separatelyeero.