MMC-SD-4.0-460 Kollmorgen
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MPN: M.1302.5095
The MMC-SD-4.0-460 is a smart drive manufactured by Kollmorgen as part of the MMC Standalone Smart Drives series. It delivers an output power of 4.0 kW at 460 Vac with a continuous output current of 9.0 A and a peak output current of 18.0 A. The drive has a nominal input power of 5.6 kVA and requires a transformer rated at 8.5 kVA.
Internal Product Review
The MMC-SD-4.0-460 is a Kollmorgen standalone smart drive with 4.0 kW output at 460 Vac and 18.0 A peak output current. A 5.0 kW bus power rating and 470 uF bus capacitance support stable power handling during demanding motion cycles. This drive stands out as an efficient, well-matched option for servo applications requiring dependable 460 Vac performance.
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Product Description:
The MMC-SD-4.0-460 is a standalone smart drive produced by Kollmorgen and assigned to the MMC Standalone Smart Drives series. Designed for cabinet installation, the unit converts a three-phase 460 VAC supply into regulated motor power and embedded motion commands, allowing the system to coordinate position, velocity, and torque without a separate controller. Its integrated control, power electronics, and braking circuitry make the drive suitable for conveyors, packaging axes, and other midrange automation tasks that need tight synchronization. Combining these functions in one unit also helps reduce panel space requirements and wiring complexity.
The DC link inside the drive is stabilized by a bus capacitance of 470 µF, and this energy storage supports a continuous bus power of 5.0 kW during load transients. During power-up, the rectifier can draw a maximum inrush current of 13.2 A RMS, while the steady-state input current is 7 A RMS from the mains. The installation should reserve 5.6 kVA of input apparent power to keep upstream switchgear within its thermal limits. A brake driver channel rated for 0.5 A is included for dynamic deceleration, and heat dissipation reaches 102 W under nominal duty. The upstream isolation transformer should be rated for 8.5 kVA to accommodate voltage fluctuations without saturation.
At an output voltage of 460 VAC, the inverter delivers 4.0 kW of mechanical power with a continuous phase current of 9.0 A, measured from zero to peak. For rapid acceleration, the drive can supply a peak current of 18.0 A for short intervals before current foldback occurs. The integrated shunt dissipates up to 44 J of returned energy during each braking event, helping prevent DC-link overvoltage and reducing the load on external resistors. Remaining losses are transferred through the baseplate. Adequate cabinet airflow keeps semiconductor junction temperatures within safe operating limits and helps maintain accurate encoder and sensor feedback.
