MDX61B Series with 0T Suffix MOVIDRIVE® B Series AC Drive | SEW-EURODRIVE
May 28, 2026

MDX61B Series with 0T Suffix MOVIDRIVE® B Series AC Drive | SEW-EURODRIVE

The suffix 0T stands for drives equipped with conformal coated PCB. This special coating provides reliable protection against moisture, dust and mild corrosive gas, making the units applicable to harsh industrial environments. All models with 0T share the same main hardware, circuit and performance parameters as the corresponding 00 versions, differing only in PCB surface treatment.

Description

1. General Introduction

The suffix 0T stands for drives equipped with conformal coated PCB. This special coating provides reliable protection against moisture, dust and mild corrosive gas, making the units applicable to harsh industrial environments. All models with 0T share the same main hardware, circuit and performance parameters as the corresponding 00 versions, differing only in PCB surface treatment.

2. Common Model Code Definition

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

  • Power code: Indicates rated power (30 kW / 37 kW / 45 kW / 55 kW / 75 kW etc.)

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

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

  • 0T: Conformal coated PCB for harsh working conditions

3. Shared Technical Features

Electrical Performance

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

  • Output Frequency Range: 0–400 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

Mechanical & Environmental Requirements

  • Protection Class: IP20 (cabinet installation only)

  • Operating Temperature: 0 °C to +40 °C; power derating is required above 40 °C

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

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

  • Certifications: CE, UL, RoHS, EAC

4. Core Advantages of 0T Version

  1. Enhanced environmental adaptability: Conformal coating isolates the circuit board from humidity, dust and mild corrosive substances, effectively extending service life.

  2. Stable operation: Reduces failure risks caused by condensation and dirt accumulation in tough workshops.

  3. Consistent performance: Same electrical performance, control functions and expandability as standard 00 models.

  4. Four-quadrant operation: Built-in brake chopper realizes regenerative braking and energy recovery.

  5. Modular expansion: Compatible with optional encoder and various fieldbus modules.

  6. Integrated motion control: IPOSplus® system supports positioning, electronic gearing and master-slave synchronization.

5. Installation & Wiring Rules

  • Mounting: Install vertically inside a control cabinet.

  • Ventilation Clearance: Reserve 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

  • Note: External EMC filter must be installed to meet electromagnetic compatibility standards. Use shielded cables for motor and signal wiring.

6. Operation & Maintenance

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

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

  • Routine maintenance: Regularly check cable connections and ventilation paths; clean dust with dry compressed air.

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

7. Applicable Scenarios

  • Industrial sites with high humidity, heavy dust or mild corrosive atmosphere

  • Conveyors, cranes, hoists, textile machinery, woodworking equipment, large fans and pumps

  • Production lines operating in non-standard clean workshop environments

8. Version Comparison

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

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

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


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