SMC-400 Kollmorgen
Wake Industrial LLC is not an authorized distributor of this product.
The Kollmorgen SMC-400 is part of the SMC Motion Stepper Drives series and supports 2 motor phases with a drive current of 2 Amps. It features a serial interface via RS-232C, 4 general inputs, and 4 general outputs with an open collector output topology. The drive measures 6 inches wide, 4.13 inches high, and 1.125 inches deep.
Internal Product Review
The SMC-400 is a Kollmorgen stepper drive with 2 A drive current and full/half stepping capability. RS-232C serial communication and TTL ground-seeking input logic support clean integration into motion control systems. Open-collector outputs with ratings up to 750 mA make this unit a strong choice for flexible stepper control.
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Product Description:
The SMC-400 is a single-axis stepper drive manufactured by Kollmorgen for the SMC Motion Stepper Drives series. This device converts low-level control commands into regulated phase currents that advance two-phase stepper motors in indexing tables, miniature conveyor lanes, and pick-and-place heads. By combining power electronics, onboard I/O, and serial communication, it supplies deterministic positioning capability while relieving the host PLC of pulse-generation duties. Its role in industrial automation is to deliver repeatable step increments and maintain position without the complexity of a servo feedback loop.
Control data reaches the board through an RS-232C port, allowing motion scripts to be downloaded from a standard terminal. The input section uses TTL ground-seeking logic and provides 3 dedicated control lines for motion enable, direction, and homing. Four additional general inputs handle auxiliary sensors, and four open-collector outputs report machine states. Outputs 0 through 2 can sink up to 500 mA each, while a busy line indicates the status of a move. The power stage supplies 2 A of programmable current to the windings, matching the needs of typical NEMA-sized stepper motors. An integrated generator provides full-step or half-step operation, giving the user a choice between higher torque and finer resolution without requiring external circuitry.
The aluminum casting measures 6.00 in wide, 4.13 in high, and only 1.125 in deep, so it fits shallow enclosures behind machine doors. Four #6-32 mounting inserts are pressed into the baseplate to secure the unit without additional brackets. Wiring terminals along the front edge simplify access during installation and maintenance. The fourth open-collector channel is rated for 750 mA, providing a higher-current sink for brakes or stack lights that exceed the capacity of the other outputs. This channel allows the drive to control a larger auxiliary load directly from its onboard electronics. The compact housing leaves additional panel space available for power supplies, terminal blocks, and related control components.
