Product Description:

The AKM21C-ACSNLB-02 is a permanent-magnet synchronous servo motor produced by Kollmorgen within the AKM Synchronous Servo Motors series. Intended for precision positioning tasks in automated assembly, test stands, and miniature conveyor drives, the unit converts controlled stator currents into regulated rotary motion while transmitting position data back to the drive. This operating principle supports accurate speed control, rapid indexing, and stable settling behavior on small machine axes. Its compact housing and low rotor inertia allow tight acceleration profiles, enabling shorter cycle times and repeatable throughput in industrial automation cells.

The motor body follows a 58 mm square frame size, and this format sets the bolt pattern for interchangeability with IEC-compatible gearheads and brackets. Winding code C indicates the wire gauge and turns ratio selected to match moderate bus voltages while limiting current draw. Position feedback is delivered by a 16/32 lines/rev incremental base grid that is interpolated by the drive, and this data is transmitted through a digital EnDAT 2.1 serial interface for noise-immune communication. The encoder hardware uses the EQI1130/1331 sensor family, giving the controller both incremental and absolute data for closed-loop motion control without magnetic hysteresis.

The rotor uses length index 1 so the active stack remains short, and the assembly is supplied without a brake to reduce rotating mass on high-speed axes. The mounting face uses an IEC flange with accuracy class N for direct coupling to precision gear reducers without shimming. Output torque is transferred through a keyway shaft, and cabling is routed through a special connector arrangement that matches Kollmorgen hybrid power and feedback cords. Multi-turn tracking is maintained by the encoder’s multi-turn inductive counting scheme, preserving absolute position across power cycles and allowing the drive to recover axis position at startup.