MMC-SD-51.0-460-D Kollmorgen
Wake Industrial LLC is not an authorized distributor of this product.
MPN: M.3000.0023
The Kollmorgen MMC-SD-51.0-460-D is a standalone smart drive from the MMC Standalone Smart Drives series. This drive delivers a continuous output current of 117.4 Amps and has a rated output power of 51.0 kW. It weighs 59 pounds and supports a peak output current of 189 Amps.
Internal Product Review
The MMC-SD-51.0-460-D is a Kollmorgen standalone smart drive rated for 51.0 kW with 58.2 kVA nominal input power. Fast 125 µsec current regulator updates and 14 bit command resolution support accurate, responsive motion control. Peak output capability of 189 A makes the unit an excellent choice for demanding servo applications.
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Product Description:
The MMC-SD-51.0-460-D belongs to the MMC Standalone Smart Drives series produced by Kollmorgen. This three-phase AC smart drive combines power electronics, motion control, and network interfaces in a single chassis, allowing it to command brushless or induction motors directly from the line supply. In industrial automation, it executes position, velocity, and torque loops internally, reducing PLC load and panel space while providing coordinated motion for conveyors, presses, and material-handling axes. The integrated architecture also reduces the number of separate control components required inside an electrical enclosure.
The unit can sustain a continuous motor phase current of 117.4 A, allowing high torque at rated speed, and it tolerates short-term demands up to 189 A during acceleration or shock loads. The input section draws a nominal current of 72 A RMS from a 460 V mains supply and converts it into DC-bus power supported by 2350 µF of capacitance. An internal brake chopper dissipates 218 J per cycle. The apparent power rating reaches 58.2 kVA, while internal switching and control electronics produce a documented power loss of 1350 W, allowing cabinet cooling to be sized for the expected thermal load. A 14-bit command resolution supports precise control, and the feedback input has a termination resistance of 150 Ω. A digital communication link can extend up to 25 m, supporting flexible placement of connected control equipment.
The current regulator refreshes every 125 µs, and the velocity regulator recalculates every 250 µs. Combined with a feedback frequency ceiling of 720 kHz, these update rates allow the drive to follow highly dynamic motion profiles. Rated mechanical output is 51.0 kW, making the drive suitable for compatible servo motors used in gantry, extrusion, or winding machines. A dedicated brake driver supplies 4 A to a holding brake, helping secure vertical loads when motor power is removed. The assembly weighs 59 lb, which must be considered when selecting the panel and mounting hardware. Adequate clearance around the power terminals supports airflow and provides space for routing the mains and motor conductors.
