Kollmorgen AKM43E-ACCNR-00

Product Introduction: The AKM43E-ACCNR-00 is a high-performance synchronous servo motor from the Kollmorgen AKM series, belonging to the AKM4 frame size family with a medium-length stack configuration. It is designed for precision motion control applications requiring high power density, low cogging torque, and smooth operation. The motor is optimized for direct coupling with Kollmorgen AKD series servo drives, delivering plug-and-play motor identification and full-frequency auto-tuning capabilities.

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Description

Kollmorgen AKM43E-ACCNR-00

Technical Specifications:

  • Frame Size: AKM4 (130mm flange diameter)
  • Stack Length: 3 (medium stack)
  • Winding Type: E winding
  • Feedback Device: SFD (Smart Feedback Device)
  • Connector Type: C (0.5m shielded cable with IP65 connector)
  • Brake: N (no brake)
  • Shaft: R (standard shaft)
  • Seal: 00 (standard IP54 motor without shaft seal)
  • Max Rated DC Bus Voltage: 640 VDC
  • Max Rated Speed: 6000 RPM
  • Insulation Class: F (155°C)
  • Protection Rating: IP54 (standard)
  • Certifications: CE, cURus, UL

Functional Features:

  • Ultra-low cogging torque and low harmonic distortion for smooth operation
  • High power density delivering superior torque-to-volume ratio
  • Plug-and-play motor identification with AKD servo drives
  • Full-frequency auto-tuning capability
  • Modular design with 500,000+ standard configurations available
  • Compatible with Kollmorgen AKD, AKD2G, and S700 series servo drives
  • Multiple feedback device options including resolver, SFD, incremental and sinusoidal encoders

Application Scenarios:

  • CNC machine tool feed axis drives
  • Industrial robot joint actuators
  • Precision positioning systems
  • Automated production lines
  • Printing and packaging machinery
  • Semiconductor wafer handling equipment

Performance Parameters:

  • Continuous Torque (Stall): Within the AKM4 frame range, up to 6.0 Nm
  • Peak Torque: Within the AKM4 frame range, up to 20.4 Nm
  • Max Rated Power: Up to 1.73 kW at max bus voltage
  • Speed Range: Up to 6000 RPM rated
  • Torque Ripple: Below ±1.2% (industry-leading specification for AKM series)
  • Control Loop Update Rate: Torque loop 0.67μs, speed loop 62.5μs, position loop 125μs (when paired with AKD drive)

Material Composition:

  • High-grade silicon steel laminations for stator core
  • Neodymium iron boron (NdFeB) permanent magnets for rotor
  • Aluminum alloy housing with precision-machined flange
  • Class F (155°C) insulation winding wire
  • Precision ball bearings

Structural Features: Compact cylindrical form factor with 130mm flange diameter. The motor features an integrated SFD feedback device, a 0.5m shielded cable with IP65 connector for power and feedback signals, and a standard shaft without keyway. The modular stack design allows multiple stack lengths within the same frame size to match torque requirements.

Working Principle: The motor operates as a three-phase permanent magnet synchronous motor (PMSM). The stator contains a three-phase winding distributed across precision-laminated silicon steel slots. When energized by a sinusoidal current from the servo drive, the rotating magnetic field interacts with the permanent magnet rotor to produce continuous torque. The SFD feedback device provides real-time rotor position and speed information to the drive, enabling closed-loop vector control with precise torque, speed, and position regulation.

Installation Requirements:

  • Mount using standard IEC/NEMA flange mounting holes on the AKM4 frame
  • Ensure proper alignment between motor shaft and load to minimize radial and axial forces
  • Use shielded motor cables with correct grounding to reduce EMI
  • Maintain adequate clearance around the motor housing for natural convection cooling
  • Connect the motor cable to the AKD drive X2 (power) and X10 (feedback) interfaces

Usage Precautions:

  • Verify the motor winding matches the drive voltage configuration before commissioning
  • Do not exceed the rated continuous torque at 40°C ambient temperature
  • Monitor motor temperature during high-duty-cycle operation
  • Use Kollmorgen WorkBench software for parameter configuration and auto-tuning
  • Ensure the SFD feedback cable is properly shielded and grounded
  • Avoid exposure to silicone oil contamination in the operating environment