Product Description:

The MMC-SD-2.4-460-D is a servo drive module built by Kollmorgen and offered within the MMC Standalone Smart Drives series. This unit interfaces directly with 460 VAC mains and supplies regulated three-phase current to brushless or induction motors used in automated conveyors, pick-and-place heads, and other motion axes. It is intended for closed-loop motion tasks that require stable speed regulation and repeatable positioning during frequent start-stop cycles. By integrating control, power electronics, and fieldbus connectivity into one enclosure, the drive simplifies panel layout in industrial automation cells.

Under steady conditions, the drive outputs 2.4 kW of output power at 460 VAC and maintains a continuous output current of 3.9 A RMS continuous output current to the motor windings. Short acceleration bursts are supported through a 11.0 A peak current limit, while the DC link is buffered by 240 µF of bus capacitance to smooth line-side transients. The converter draws 4.18 A RMS of input current and handles 3.33 kVA of apparent power from the supply, keeping electrical demand suitable for typical industrial power systems. For applications that require dynamic braking, a shunt port permits connection of external resistors, and the circuitry can handle up to 5.9 A AC of regenerative current before redirecting excess energy to the resistor network.

The protection stage activates at 780 VDC on the internal bus. Once this level is reached, the shunt switch diverts energy into resistive loads no smaller than 130 Ω, which helps prevent overvoltage faults during rapid deceleration. Total losses inside the electronics are limited to 60 W, enabling operation without auxiliary cooling while the assembly mass remains only 10 lb. On initial start-up, the line side can experience a 7.81 A RMS inrush, and the auxiliary 24 V rail draws 700 mA, peaks at 4 A for 10 ms, and supplies 17 W for logic and gate drivers. A brake output rated at 0.5 A controls holding brakes on connected axes.