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Kollmorgen AKD-M02406-M1E

Product Overview:
The AKD-M02406-M1E is a single-axis digital servo drive from Kollmorgen’s AKD product family, specifically configured for machine builder OEM applications. The “M” prefix indicates a modular/machine-builder optimized variant with enhanced I/O and communication options. The “M1E” suffix denotes a specific communication and configuration package including EtherCAT with extended I/O and Safe Torque Off (STO).

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Detailed content

Technical Specifications:

Parameter Value
Continuous Output Current 6 A RMS
Peak Output Current 18 A (3× continuous for 5 seconds)
DC Bus Voltage Range 24 VDC to 48 VDC (nominal 48 VDC)
Power Rating Approximately 288 W continuous (at 48 VDC)
Control Mode Current (Torque) Mode, Velocity Mode, Position Mode, Cyclic Synchronous Position (CSP)
Feedback Types Supported Hall sensors, Incremental Encoder (A/B/Z), Sine/Cosine Encoder, Resolver, EnDat 2.2, BiSS-C
Communication Interface EtherCAT (Slave), CANopen (optional), USB (service), Digital I/O (extended)
Digital Inputs 8 (24 VDC, optically isolated)
Digital Outputs 4 (24 VDC, transistor, 200 mA max)
Analog Inputs 2 (0–10 VDC, 12-bit resolution)
Analog Outputs 1 (0–10 VDC, for monitoring)
EtherCAT Cycle Time 250 μs to 1 ms (configurable)
Operating Temperature 0°C to +50°C (derating above 40°C)
Enclosure Rating IP20 (chassis mount)
Dimensions (approx.) 145 mm × 80 mm × 48 mm (W × H × D)
Weight (approx.) 0.46 kg

Functional Features:

  • EtherCAT slave interface with CoE (CANopen over EtherCAT) and FoE (File over EtherCAT) protocol support
  • Extended digital I/O (8 inputs / 4 outputs) for direct machine interface wiring
  • 2 analog inputs for external torque/velocity command scaling
  • 1 analog output for real-time torque/velocity monitoring
  • Safe Torque Off (STO) per IEC 61800-5-2 Category 3
  • Programmable motion profiles: S-curve, trapezoidal, point-to-point
  • Electronic gear ratio: 1:1 to 10000:1 (numerator/denominator programmable)
  • Fault logging with timestamped event recording (up to 50 events)

Structural Characteristics:

  • Standard AKD chassis form factor — 145 × 80 × 48 mm
  • Front-facing terminal blocks for power, motor, encoder, I/O, and communication
  • EtherCAT RJ45 port and USB Type-B service port
  • DIN rail mount clips (top and bottom)
  • IP20 rating — requires installation in an enclosure for higher IP ratings

Working Principle:
The AKD-M02406-M1E receives motion commands via EtherCAT from a master controller (PLC, motion controller, or PC-based controller). The DSP processor (200 MHz) executes the three-loop servo algorithm at 20 kHz current loop / 1 kHz velocity loop / 1 kHz position loop. The IGBT three-phase inverter drives the motor with sinusoidal PWM at 20 kHz. The EtherCAT distributed clock synchronizes the drive with other axes to within 1 μs jitter, enabling coordinated multi-axis motion. The STO function physically disables the IGBT gate drivers when the safety circuit is opened.

Advantages:

  • OEM-optimized with extended I/O reducing external wiring needs
  • EtherCAT eliminates external motion controller for up to 64 axes per master
  • STO integrated — no additional safety relay required for Category 3 applications
  • Analog I/O allows direct integration with legacy PLCs without fieldbus
  • Fault logging simplifies troubleshooting in the field

Applicable Industries:

  • OEM packaging machines
  • Conveyor and sorting systems
  • Textile machinery (looms, knitting machines)
  • Printing presses
  • Food and beverage processing equipment
  • Material handling (AGVs, conveyors)
  • Woodworking and metalworking machines

Installation Requirements:

  • Mount on DIN rail (35 mm) inside IP54 or higher enclosure for industrial use
  • EtherCAT cable: Shielded CAT5e/CAT6, max 100 m per segment, 4 segments max (400 m total)
  • STO wiring: Must use dual-channel safety relay with cross-monitoring per IEC 61800-5-2
  • DC bus capacitor: Required if bus cable exceeds 2 meters (use Kollmorgen part CAP-048-1000 or equivalent)
  • Analog cables: Shielded twisted pair, grounded at drive end only
  • Minimum 50 mm clearance on top, bottom, and sides for airflow

Usage Precautions:

  • Verify STO circuit integrity with a certified safety analyzer before energizing the machine
  • Do not exceed 6 A continuous current — derate 1%/°C above 40°C ambient
  • EtherCAT network must be terminated with 120 Ω resistor at each end
  • Firmware must be updated to the latest version using AKD Workbench before first use
  • Do not disconnect encoder cable under power — this will cause a fault and require re-homing

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