Product Description:

The AKM21G-ENBN2-00 is a synchronous servo motor manufactured by Kollmorgen in the AKM Synchronous Servo Motors series. As a compact rotary actuator, it converts commanded current into precise torque and speed for positioning drives, pick-and-place heads, and indexing tables used in industrial automation. The motor belongs to a general-purpose AKM family and uses the consistent mechanical and electrical interfaces common to that platform. This type of motor is suited for axes that require repeatable starts, stops, and speed changes under servo control. Its construction supports direct mounting to gearboxes or belt pulleys and delivers fast transient response for closed-loop motion control.

Mechanically, installation is simplified by the use of 2 SpeedTec Ready connectors, which allow keyed push-and-turn mating for both power and feedback lines and reduce cabling time. This connector arrangement keeps power and feedback connections separate while maintaining a compact motor outline. The square housing follows a 58 mm frame dimension, allowing use in machine layouts that accept NEMA 23 footprints. The motor uses the G winding designation for voltage and torque balance when paired with typical 120/240 V servo drives. It has Rotor length index 1, which keeps the housing short for tight machine envelopes while supporting continuous duty ratings. A smooth shaft avoids keyways that could introduce imbalance and is intended for clamp or compression couplings.

Position feedback is delivered by a 2048 lines/rev feedback resolution, giving the controller 8192 counts per electrical revolution after quadrature decoding for fine motion increments. The embedded Comcoder feedback system combines incremental and absolute markers to simplify homing routines, and its single-turn optical feedback architecture eliminates multi-turn memory components. Absolute marker information supports position recovery within one revolution, while incremental signals provide the fine interpolation used during closed-loop operation. Sensor identification is coded as EPC 15T, ensuring that drive parameter files match the encoder's electrical characteristics. The motor is supplied without a brake, so holding torque during power-off must be provided externally. It ships in the standard customization level used for this motor line.