AKM42E-SSS2MA-02 Kollmorgen
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The Kollmorgen AKM42E-SSS2MA-02 is a servo motor from the AKM Synchronous Servo Motors series with an 84mm frame dimension and a special flange configuration. It is equipped with a DRIVE-CLiQ Encoder feedback system offering 24-bit resolution, and includes a 24V holding brake. The motor features a special connector arrangement and shaft detail, along with a safety single turn optical feedback type ECN1324S.
Internal Product Review
The AKM42E-SSS2MA-02 is a Kollmorgen AKM synchronous servo motor with a 24V holding brake, making the design especially attractive for controlled motion applications. The DRIVE-CLiQ encoder and 24 Bit feedback resolution deliver excellent positioning fidelity, a key strength for precise servo control.
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Product Description:
The AKM42E-SSS2MA-02 is a brushless servo unit manufactured by Kollmorgen within the AKM Synchronous Servo Motors series. As a rotary actuator, it converts drive current from a digital amplifier into precise shaft motion for indexing tables, material-handling axes, and robotic joints. The motor’s frame size and flange pattern align with automation platforms that require compact torque sources while supporting feedback over electronic buses, allowing the drive controller to execute high-bandwidth position loops.
This motor includes a 24 V holding brake, allowing the shaft to remain fixed when power is removed; vertical axes therefore stay positioned without external clamps. Its feedback chain attains a 24-bit resolution, so the drive can distinguish more than sixteen million discrete positions in one mechanical revolution and support micro-increment moves. Communication with the controller occurs through a DRIVE-CLiQ encoder, which streams digital position, speed, and diagnostic data across the Siemens-developed bus. The sensing element is identified as an ECN1324S encoder, a low-latency optical disk that pairs with the drive to minimize interpolation error. Mechanical integration is simplified by the 84 mm frame dimension, giving the motor a square footprint that fits standard AKM42 gearheads and couplings.
The feedback hardware provides safety-rated single-turn optical feedback, reporting absolute position over one revolution with redundant features for SIL-rated systems. Torque capability is scaled by the motor’s rotor length index 2, which enlarges the magnetic stack relative to shorter variants while keeping the outer diameter unchanged. Mounting surfaces follow a special flange pattern, and the housing has a matching special connector arrangement. This configuration allows the cable exit and bolt circles to fit tight spaces on custom machinery. Internally, the stator has winding designation E, which indicates a coil set with voltage constants that balance peak torque against the moderate DC bus levels used in 48–320 V servo platforms.
