Product Description:

The AKM21C-ANM2DB00 is a synchronous servo motor produced by Kollmorgen within the AKM Synchronous Servo Motors series. Designed for compact axes, the unit converts drive current into tightly regulated torque for pick-and-place heads, small conveyors, and collaborative robot joints in automated equipment. Its construction, combined with an electromagnetic brake and high-resolution encoder interface, supports secure load holding and precise position loops during repeated start-stop cycles. It can be paired with Kollmorgen SERVOSTAR drives in decentralized cabinets where compact motor dimensions and consistent feedback handling are important.

Mechanically, the motor uses a smooth shaft, which simplifies coupling alignment. The front face uses an IEC flange with accuracy grade N, enabling direct mounting to gearheads while maintaining the concentricity tolerance of that grade. The frame dimension is 58 mm, which keeps the profile compact, and rotor length index 1 indicates the shortest magnetic stack in this size. A 24 V holding brake secures the load when power is absent and releases automatically when energized. Feedback is provided at 512/2048 lines per revolution, giving the drive both base commutation data and finer interpolated position information. The unit is supplied in the standard configuration.

Control accuracy is anchored by the EnDat 2.1 encoder, a bidirectional interface that transmits absolute position data to the drive. The sensor is a multi-turn optical type, so position can be retained across up to 4096 revolutions without a battery. The feedback system uses EQN1125/1325 coding, which supports fast power-on referencing and consistent encoder recognition. Torque production is tuned by winding code C, which is selected for medium bus voltage and low harmonic content. Absolute position data is available to the drive at startup, which helps suitable axes resume controlled positioning without a manual reference move.