Product Description:

The MMC-SD-8.0-460-D is a standalone smart drive produced by Kollmorgen and assigned to the MMC Standalone Smart Drives series. Acting as both controller and power converter, the unit accepts three-phase 460 VAC and generates a regulated DC bus that feeds servo or induction motors used in packaging lines, indexing tables, and general-purpose machinery. Its embedded motion engine eliminates the need for a separate PLC axis card, while its integral brake driver and encoder interfaces provide a compact solution for speed, torque, and position regulation in industrial automation.

With a nominal input current of 14.8 A RMS, the drive draws 11.8 kVA from the mains and charges a DC link supported by 705 µF of bus capacitance that filters ripple during dynamic load changes. The internal store can deliver 5.0 kW of bus power and absorb 66 J of regenerated energy through a dedicated resistor path. Startup demands are handled by a 27.7 A RMS inrush profile, so Kollmorgen specifies a minimum 1.5 mm² (16 AWG) copper supply conductor rated at 75 °C. Mechanical security of the supply leads is maintained by a power-terminal clamp that must be tightened to 1.25 Nm. These input attributes affect feeder sizing, circuit breaker selection, and cabinet thermal planning.

On the output side, the converter delivers a continuous phase current of 18.0 A (0-peak) and can surge to 36.0 A (0-peak) for acceleration or disturbance rejection, yielding an available shaft power of 8.0 kW at 460 VAC. Closed-loop integrity is aided by a 150 Ω feedback termination and a feedback bandwidth that reaches 720 kHz, allowing high-resolution encoders to be used without aliasing. During operation, the electronics dissipate 204 W of heat, a figure that guides heat sink sizing and airflow requirements. The integrated brake output supplies up to 0.5 A to an external brake coil, and the entire assembly weighs 16 lbs, facilitating straightforward panel mounting.