Product Description:

The AKM21C-ANBNAB00 is a compact synchronous servo motor produced by Kollmorgen for the AKM Synchronous Servo Motors series. Designed for high-performance motion loops, it converts drive current into tightly regulated torque and speed, letting packaging equipment, electronic assembly systems, and small robot joints achieve repeatable rotary positioning. The motor arrives as a standard configuration component that mounts on an IEC flange, connects through SpeedTec plugs, and works with Kollmorgen drives to provide direct shaft output without integral braking hardware, which helps reduce overall system inertia in precision automation lines.

The motor has a frame dimension of 58 mm, so the stator face occupies minimal space while matching common IEC gearheads. A smooth shaft eliminates keyways, decreasing backlash when the rotor is coupled to compliant clamp hubs. Electrical terminations pass through 2 SpeedTec Ready connectors, and these quarter-turn fittings shorten installation time while maintaining sealing during service swaps. The flange follows IEC with accuracy N, giving the pilot diameter and bolt-circle tolerances needed for standardized mounting plates. Internally, the stator uses a C winding, matching coil impedance to drive outputs suited for low-voltage, high-current operation, while the rotor length index of 1 balances torque density against motor mass.

Position feedback is generated by an optical encoder that delivers 2048 lines/rev, providing fine incremental resolution for tight velocity loops. Communication runs over the BISS B Encoder protocol, enabling synchronous differential signaling that resists electromagnetic noise on long motor cables. Because the scanning head is multi-turn optical, the drive receives absolute position information across multiple mechanical revolutions without homing. The electrical interface is categorized as AD34/AD58, indicating pinout and voltage levels compatible with Kollmorgen AKD and select third-party servo drives. The motor ships without a brake, so hold-in-place functions must be achieved through drive torque or external locking mechanisms.