Technical Specifications‌
Rated output power is 0.55 kilowatts. Input voltage is 3-phase 380 to 500 volts AC at 50 or 60 Hertz. Output frequency range is 0 to 400 Hertz. Rated output current is 2.5 amperes. The drive includes an integrated brake chopper for deceleration energy management. Feedback support includes incremental encoder, sinusoidal encoder and resolver inputs. Communication options include PROFIBUS, PROFINET, EtherNet/IP, CANopen and EtherCAT via optional communication modules.

‌Functional Features‌
The drive features integrated Safe Torque Off (STO) safety function per IEC 61800-5-2. Position control mode supports up to 16 million encoder counts per revolution resolution. The unit includes an automatic motor identification routine that detects motor parameters during initial setup. A built-in holding brake prevents unintended motion when power is removed. Overload capacity is 150 percent of rated current for 60 seconds and 200 percent for 3 seconds. The drive supports cascaded speed and torque control modes in addition to position mode.

‌Application Scenarios‌
This drive is used in high-speed packaging and bottling lines, textile weaving and knitting machinery, printing press web tension control, semiconductor wafer transfer robots, food processing conveyors, logistics sorting systems and general-purpose servo applications requiring compact drive integration.

‌Performance Parameters‌
Speed control accuracy is 0.01 percent of rated speed. The current control loop bandwidth exceeds 1.5 kilohertz. Operating ambient temperature is -10 degrees Celsius to +50 degrees Celsius without derating. The protection rating is IP20 when mounted in a cabinet. The unit weighs approximately 2.8 kilograms. The service life of the internal electrolytic capacitors exceeds 10 years at rated operating temperature.

‌Material Composition‌
The housing is die-cast aluminum with a hard anodized surface finish for heat dissipation and corrosion resistance. Power semiconductors are IGBT modules with built-in thermal monitoring. The heat sink is extruded aluminum with optimized fin geometry for natural convection. The control board uses high-TG FR4 laminate with lead-free solder. Terminal blocks are copper alloy with nickel plating. All internal wiring uses high-flexibility silicone insulated conductors.

‌Structural Features‌
The unit is designed for vertical mounting on a thermally conductive backplate inside a control cabinet. Stacking of multiple MDX61B units is supported with a common DC bus link for coordinated motion applications. The front face includes status LEDs for power, ready, fault and communication status along with a 5-digit 7-segment display for parameter visualization. Terminal connections for power, motor and feedback are clearly labeled and accessible from the front or top depending on orientation.

‌Working Principle‌
The drive rectifies the incoming 3-phase AC supply to a DC bus using a diode bridge. The IGBT inverter stage then synthesizes a variable-frequency, variable-voltage 3-phase AC output to the motor using pulse-width modulation. The internal DSP controller continuously reads the motor encoder feedback and compares actual speed and position against the commanded values from the higher-level motion controller. It adjusts the PWM duty cycle and frequency in real time to minimize the error between command and actual motor behavior.

‌Installation Requirements‌
Mount the drive vertically on a minimum 2 millimeter thick aluminum or steel backplate using the four mounting screws provided. Maintain at least 50 millimeters of clearance above and 100 millimeters below the drive for adequate airflow. Install the drive in an enclosure with a maximum internal temperature of 50 degrees Celsius. Route motor cables as shielded twisted pair with a maximum length of 20 meters. Connect the STO safety circuit through a safety-rated contactor. Ground the drive chassis and the motor frame to the same ground point.

‌Usage Precautions‌
Wait a minimum of 5 minutes after disconnecting all power before accessing internal terminals; the DC bus capacitors retain dangerous voltage. Do not operate the drive with the motor disconnected as this causes overvoltage on the output stage. Do not exceed the rated current for more than the specified overload duration. Clean the heat sink fins annually to prevent thermal derating. Replace the internal fan every 3 years if the drive is operated above 40 degrees Celsius ambient. Do not apply mechanical shock or vibration beyond the specified limits.