Product Description:

The MMC-SD-12.0-460 is a Kollmorgen drive from the MMC Standalone Smart Drives series. It combines power conversion, motion control, and feedback processing for 460 VAC servo or induction motors, allowing automation systems to command speed and position from one cabinet module rather than using separate amplifiers. The design suits packaging machines, pick-and-place axes, and general-purpose conveyors that require tight velocity regulation and integrated safety.

Its power stage delivers 12.0 kW of continuous output while maintaining a continuous current of 27.5 A, establishing the long-term torque available to the motor without derating. For brief accelerations, the drive supplies up to 55.0 A of peak current. On the mains side, it draws 16.7 A RMS, corresponding to an input demand of 13.3 kVA. The digital current loop refreshes every 125 µs, and the velocity loop updates every 250 µs, giving the controller a submillisecond response to load changes. These characteristics allow the drive to support medium-frame servomotors on fast indexing lines while keeping feeder cables and protective devices within standard industrial ratings.

An internal bus capacitance of 820 µF allows the unit to absorb 76 J of regenerative energy, while an inrush surge of 32.2 A RMS is limited in duration by an NTC network. During steady operation, the electronics dissipate 300 W, so panel airflow must remove the generated heat. A built-in resistor dissipates regenerated energy, helping prevent overvoltage trips during deceleration or emergency stops. A 0.5 A brake driver, a terminal torque of 1.25 N·m (11 lb-in), and 1.5 mm² (16 AWG) input wiring support field connections. The drive accepts encoder signals at frequencies up to 720 kHz without signal loss. The enclosure weighs 35 lb and is intended for mounting inside an industrial control cabinet.