Product Description:

The MMC-SD-1.3-460-D is a standalone smart drive produced by Kollmorgen within the MMC Standalone Smart Drives series. It converts 460-volt three-phase mains power into regulated three-phase output power for servo or induction motors, providing motion control without a separate amplifier or PLC-based control loop. Integrated processing handles position, velocity, and torque commands, so the unit can operate conveyors, indexing tables, or packaging axes while minimizing cabinet space and wiring. This integrated design allows the drive to execute coordinated motion functions while communicating with the surrounding machine control system.

During continuous operation, the drive supplies 3.0 A of motor current, corresponding to an electrical output rating of 1.3 kW. For acceleration and transient loads, the output can rise to 6.0 A, while the current regulator updates every 125 µs to preserve stability. Line-side demand reaches a nominal 1.94 kVA at 2.44 A RMS, and the thermal design must accommodate a steady power loss of 34 W dissipated through the heat sink. The internal DC bus has 110 µF of capacitance, while a shunt switch begins clamping at 780 VDC to absorb regenerated energy during deceleration. Inrush current is limited to 4.56 A RMS so that standard circuit breakers can provide effective protection.

Control circuits draw 24 V at 700 mA, allowing the logic to share a common machine power supply rated at 17 W. The feedback interface accepts encoder signals up to 720 kHz, enabling high-resolution position loops, and the velocity regulator refreshes every 250 µs for smooth speed transitions. A dedicated brake driver can deliver 0.5 A to release or engage a holding brake as required by the application. The nominal input current supports conductor sizing, while the stated inrush current supports appropriate fuse and circuit-breaker selection. With a mass of 10 lb, the drive can be mounted inside compact enclosures or on suitable machine structures without adding substantial weight.