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Kollmorgen AKM54H-ACCNR-00

Product Introduction
This is a high-performance brushless servo motor belonging to the Kollmorgen AKM series, designed for demanding industrial motion control applications requiring high torque density and smooth operation. It provides optimized performance when paired with Kollmorgen SERVOSTAR or AKD series drives.
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Technical Specifications
  • Stall Torque: 14.19 Nm continuous
  • Peak Torque: 37.5 Nm
  • Rated Speed: Up to 6000 rpm
  • Continuous Current: 5.5 Arms
  • Peak Current: 16.5 Arms
  • Max Bus Voltage: 640 Vdc (480 Vac)
  • Number of Poles: 10 (5 pole pairs)
  • Rotor Inertia: 11.9 kg·cm²
  • Motor Flange: 108 x 108 mm
  • Shaft Diameter: 24 mm with keyway (indicated by ACC in suffix)
  • Weight: Approximately 9.0 kg
Functional Features
  • Low Cogging Design: Engineered with optimized magnetic circuit design to minimize torque ripple for smooth low-speed operation.
  • High Torque Density: Delivers maximum torque in a compact 54-frame package.
  • Feedback Device: Equipped with a resolver (indicated by NR) providing robust position feedback with +/-8 arcmin accuracy, suitable for harsh environments.
  • Thermal Protection: Integrated PTC thermistor for winding temperature monitoring.
  • No Holding Brake: Configuration code indicates absence of a failsafe brake (no B suffix).
Material Composition
  • Housing: Aluminum alloy with corrosion-resistant finish.
  • Magnets: Rare-earth permanent magnets (Neodymium-Iron-Boron).
  • Insulation: Class F (155°C) insulation system rated for 100°C rise over 40°C ambient.
  • Shaft: Steel with keyway.
Structural Features
  • Mounting: Metric flange mounting conforming to IEC standards.
  • Connectors: Dual rotatable M23 angled connectors (SpeedTec Ready) for power and feedback, allowing flexible cable routing.
  • Sealing: Standard IP54 protection; optional shaft seal ring upgrades to IP65.
Working Principle
Operates as a three-phase permanent magnet synchronous motor. The drive supplies modulated AC current to the stator windings, generating a rotating magnetic field that interacts with the rotor magnets. The resolver provides real-time rotor position data to the drive for precise commutation and closed-loop control.
Installation Requirements
  • Mount using the 108×108 mm flange with M8 bolts on a rigid, flat surface.
  • Align the 24 mm keyed shaft accurately with the load coupling to avoid radial or axial thrust loads exceeding specifications.
  • Ensure proper grounding of the motor frame.
  • Route power and feedback cables separately from high-noise sources or use shielded cables.
Usage Notes
  • Do not operate beyond the 640 Vdc bus voltage limit.
  • Verify resolver wiring polarity during initial commissioning to prevent instability.
  • Ambient operating temperature is 0°C to 40°C (up to 55°C with derating).
  • Ensure adequate ventilation around the motor body as the H stack length generates significant heat at continuous rated current.
Applications
Printing machinery, packaging equipment, material forming, textile machinery, and general automation requiring mid-to-high torque.

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