MDX61B0370-503-4-0T MOVIDRIVE® B Series AC Drive | SEW-EURODRIVE
May 28, 2026

MDX61B0370-503-4-0T MOVIDRIVE® B Series AC Drive | SEW-EURODRIVE

MDX61B0370-503-4-0T is a 37 kW (Constant Torque) high-performance AC drive from SEW-EURODRIVE MOVIDRIVE® MDX61B series. It is fitted with an integrated brake chopper for four-quadrant regenerative operation. There is no built-in EMC filter, so an external EMC filter is mandatory to meet electromagnetic compatibility requirements. The suffix 0T means the PCB is applied with conformal coating, designed for humid, dusty or mildly corrosive harsh industrial environments.

Description

1. General Description

MDX61B0370-503-4-0T is a 37 kW (Constant Torque) high-performance AC drive from SEW-EURODRIVE MOVIDRIVE® MDX61B series. It is fitted with an integrated brake chopper for four-quadrant regenerative operation. There is no built-in EMC filter, so an external EMC filter is mandatory to meet electromagnetic compatibility requirements. The suffix 0T means the PCB is applied with conformal coating, designed for humid, dusty or mildly corrosive harsh industrial environments.

2. Model Code Explanation

  • MDX61B: MOVIDRIVE B series, equipped with dual expansion slots for encoder and fieldbus modules

  • 0370: Rated power 37 kW (Constant Torque)

  • 503: 3-phase 380–500 V AC, no integrated EMC filter

  • 4: Integrated brake chopper, supports four-quadrant regenerative operation

  • 0T: Conformal coated PCB for harsh working conditions

3. Technical Specifications

3.1 Electrical Parameters

  • Input Voltage: 3×380–500 V AC (-15% ~ +10%), 50/60 Hz

  • Rated Input Current: 65.7 A (at 400 V)

  • Rated Output Power: 37 kW (CT)

  • Rated Output Current: 73 A

  • Apparent Power: 51.1 kVA

  • Output Frequency Range: 0–599 Hz

  • Control Modes: V/f control, VFC vector control, CFC closed-loop vector control, servo control

  • Overload Capability: 150% rated current for 60 s; 175% rated current for 2 s

  • Switching Frequency: 4 kHz, 8 kHz, 12 kHz, 16 kHz (adjustable)

  • Safety Function: STO (Safe Torque Off), compliant with PL d / SIL 2

3.2 Mechanical & Environmental Parameters

  • Protection Class: IP20 (cabinet installation only)

  • Dimensions (W × H × D): 280 × 520 × 307 mm

  • Weight: Approximately 27 kg

  • Operating Temperature: 0 °C to +40 °C. Power derating is required when ambient temperature exceeds 40 °C.

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

  • PCB Treatment: Conformal coating against moisture, dust and mild corrosion

  • Altitude: No power derating below 1000 m; derate 1% per additional 100 m above 1000 m

  • Certifications: CE, UL, RoHS, EAC

4. Version Comparison

  • 00: Standard non-coated PCB, for clean and dry environments

  • 0T: Conformal coated PCB, for humid, dusty or corrosive environments

  • 50: Special factory customized version with exclusive firmware and settings

5. Main Features

  1. Four-quadrant operation with built-in brake chopper enables regenerative braking and energy recovery.

  2. External EMC configuration; an external EMC filter must be installed on site.

  3. Conformal coated PCB enhances reliability in harsh industrial environments.

  4. Modular design supports optional encoder and multiple fieldbus modules for function expansion.

  5. Integrated IPOSplus® motion system realizes positioning, electronic gearing and master-slave synchronization.

  6. Standard STO safety function complies with international machine safety standards.

6. Installation & Wiring

  • Mounting Method: Vertical installation inside control cabinet.

  • Ventilation Clearance: Keep minimum 100 mm space at top and bottom, 50 mm on both sides.

  • Main Terminals:

    • X1: Mains connection (L1, L2, L3, PE)

    • X2: Motor connection (U, V, W, PE)

    • X4: DC link terminals for external brake resistor

    • X11: Analog input (0–10 V / 4–20 mA)

    • X13: 24 V DC digital inputs and outputs

    • X15 / X16: Encoder interfaces

7. Operation & Commissioning

  • Local Operation: DBG60B handheld keypad for parameter setting, manual operation and fault checking.

  • PC Commissioning: MOVITOOLS® MotionStudio for program editing, real-time monitoring and fault diagnosis.

  • Operating Modes: Jog mode, reference homing, positioning mode, synchronous operation.

8. Safety Instructions

  • Installation, wiring and commissioning shall only be performed by qualified electrical personnel.

  • Dangerous high voltage remains inside the unit after power-off. Wait at least 5 minutes for full capacitor discharge before touching internal terminals.

  • Use shielded cables for motor and signal wiring, and match with qualified external EMC filter.

9. Maintenance & Troubleshooting

  • Routine Maintenance: Regularly inspect cable connections and ventilation passages. Remove dust with dry compressed air.

  • Typical Faults: Overcurrent (OC), Overvoltage (OV), Overtemperature (OT), Encoder Error. Fault codes can be read via keypad or supporting software.

10. Typical Applications

  • Conveyors, cranes and hoists

  • Packaging, textile and woodworking machinery

  • Large fans, pumps and process production equipment

  • Industrial sites with humid, dusty or mildly corrosive operating conditions


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