MMC-SD-0.5-230-DN Kollmorgen
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The Kollmorgen MMC-SD-0.5-230-DN is part of the MMC Standalone Smart Drives series and features a rated power of 0.5 kW with a three-phase sinusoidal commutation type. It provides a continuous output current of 2.5 A and peak output current of 7.5 A, with a nominal input current of 5 A RMS. The drive supports a maximum feedback frequency of 720 kHz using differential quadrature signals and has an operating altitude of 1500 meters.
Internal Product Review
The MMC-SD-0.5-230-DN is a Kollmorgen standalone smart drive rated at 0.5 kW with three-phase sinusoidal commutation. Continuous output current of 2.5 A and peak output current of 7.5 A support stable motor control through changing load conditions. Fast loop response from a 125 µs current regulator rate and 250 µs velocity regulator rate makes the drive especially well suited for precise motion applications.
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Product Description:
The MMC-SD-0.5-230-DN is a compact AC servo drive produced by Kollmorgen within the MMC Standalone Smart Drives series. Intended for decentralized axis control, the unit provides power conversion, current regulation, and position-loop processing in a single housing that mounts near the motor it commands. By combining power electronics and motion control processing, the drive provides closed-loop speed and torque regulation for brushless motors. This arrangement supports controlled motion in automated assembly stations, packaging lines, and material-handling cells while reducing the length of motor power and feedback connections.
The drive is rated for 0.5 kW of continuous mechanical power and supplies 2.5 A continuously through its output stage. Transient movements can draw up to 7.5 A for short periods, providing additional current for acceleration and sudden load changes. A digital regulator refreshes the current loop every 125 µs, while three-phase sinusoidal commutation helps minimize torque ripple during rotation. Motor feedback enters through differential quadrature channels terminated at 150 Ω, and the ±200 mV input window helps reject common-mode electrical noise. The terminal screws require a tightening torque of 1.17 N·m so the power connections maintain low electrical resistance under vibration.
The velocity loop executes every 250 µs, providing the control bandwidth required for precision indexing and rapid speed correction. Feedback circuitry supports a maximum edge rate of 720 kHz, allowing the drive to process high-resolution position signals at elevated motor speeds. Input wiring must carry a nominal line current of 5 A RMS from a single-phase 230 V supply. The drive can operate at elevations up to 1500 m above sea level and can withstand nonoperating shocks of 15 g for 11 ms. Its enclosure measures 246.13 mm high and 75.18 mm wide, allowing installation in slim control cabinets while leaving room for the airflow needed by its internal thermal management system.
