1. Model Decoding

• MDX61B: MOVIDRIVE B series, dual expansion slots

• 0055: Rated power 5.5 kW (constant torque)

• 503: 3‑phase 380–500 V AC, no built‑in EMC filter

• 4: Integrated brake chopper, four‑quadrant regenerative operation

• 50: OEM version, no internal EMC filter, standard PCB (non‑coated)

2. Electrical Ratings

• Input: 3×380–500 V AC (‑15%/+10%), 50/60 Hz, 11 A rated input current

• Output: 5.5 kW (constant torque), 12.5 A rated output current, 9.5 kVA apparent power

• Frequency range: 0–599 Hzeero

• Control modes: VFC (V/f), CFC (closed‑loop vector), SERVO (field‑oriented control)

• Overload: 150% for 60 s, 200% for 1 s

• PWM frequency: 4 kHz (default), optional 8/12/16 kHz

• Braking: Internal brake chopper; external resistor ≥47 Ω required

• EMC: No internal filter; external filter required for Class C2 (EN 61800‑3)

• Efficiency: IE2 (IEC 61800‑9‑2), standby loss ≈18 W

3. Mechanical & Environmental

• Dimensions (W×H×D): 105 × 335 × 294 mm

• Weight: ≈4.2 kg

• Protection class: IP20 (cabinet‑mount only)

• Ambient temp: ‑10 °C to +50 °C; derate above 40 °C

• PCB coating: Standard (non‑coated) – clean/dry environments

• Altitude: 1000 m max without derating; 1% per 100 m above 1000 m

• Certifications: CE, UL, cUL, RoHS, STO (PL d, SIL 2)

4. I/O, Communication & Motion

• Motion: IPOSplus® Basic (positioning, electronic cam, master‑slave sync)

• Safety: STO (Safe Torque Off) (PL d, EN ISO 13849‑1)

• Terminals:

  • Analog: ±10 V / 4–20 mA input

  • Digital: 6×24 V DC isolated inputs; 2×transistor outputs + 1×relay output

  • PTC: Motor thermistor input

• Communication: Standard SBus & RS485 (Modbus RTU); expandable to PROFINET, CANopen, EtherCAT via option cards

5. Key Features

1. 5.5 kW high power density in compact size

2. Four‑quadrant operation with integrated brake chopper

3. OEM‑optimized (50) – no internal EMC filter for custom system design

4. Modular expansion for encoders and fieldbus communication

5. IPOSplus® motion control integrated as standard

6. Version Differences (50 vs 5A3 vs 0T)

• 50: No internal EMC filter, standard PCB – OEM, external filter required

• 5A3: Built‑in Class C2 EMC filter, standard PCB – general industrial use

• 0T: Built‑in Class C2 EMC filter, conformal‑coated PCB – humid/dusty environments

7. Typical Applications

• OEM machinery (packaging, material handling, machine tools)

• Conveyors, fans, pumps (with external EMC filter)

• Systems requiring custom EMC design or external filtering