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Kollmorgen AKD-P02406-NCP

Model Number: AKD-P02406-NCP

Product Overview:
The AKD-P02406-NCP is a 2.4 kW (3 HP) servo drive from Kollmorgen’s AKD-P series. The “NCP” suffix denotes the command interface (EtherCAT + CANopen) and feedback type (EnDat 2.2 single-turn absolute). This drive is designed for high-performance motion control in demanding industrial applications.

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Detailed content

Product Category: Servo Drive / Servo Amplifier

Model Series: AKD-P (Performance Series)

Technical Specifications:

Parameter Value
Model AKD-P02406-NCP
Rated Power 2.4 kW (3.2 HP)
Peak Power (30 sec) 7.2 kW (9.6 HP)
DC Bus Voltage 200–640 V DC (Nominal 325 V DC)
Continuous Output Current 6 A RMS per phase
Peak Output Current 18 A RMS per phase (30 sec)
Command Interface EtherCAT (primary) + CANopen (secondary)
Feedback Interface EnDat 2.2 (Single-Turn Absolute)
Encoder Input (alternative) BiSS-C, Hiperface DSL, SSI, Incremental (5V RS-422)
I/O Count 16 Digital Inputs + 16 Digital Outputs (built-in)
Analog Inputs 2 (±10 V, 0–10 V, ±20 mA, 0–20 mA)
Analog Outputs 2 (±10 V, 0–10 V)
Control Modes Position, Velocity, Torque, Cyclic Synchronous Position (CSP), Cyclic Synchronous Velocity (CSV), Cyclic Synchronous Torque (CST), Profiles, Gearing, Electronic Cam, Flying Shear, Web Guide
Position Loop Update Rate 62.5 µs (16 kHz)
Velocity Loop Update Rate 62.5 µs (16 kHz)
Current Loop Update Rate 31.25 µs (32 kHz)
PWM Frequency 16 kHz (adjustable to 8/32 kHz)
Protection Features Overcurrent, Overvoltage, Undervoltage, Overtemperature, Encoder fault, Motor overload, Ground fault, Short circuit
Communication Protocols EtherCAT, CANopen, Modbus TCP (optional), Profinet (optional)
Dimensions (W × H × D) 145 mm × 220 mm × 195 mm (approx.)
Weight 3.8 kg
Cooling Forced air (internal fan)
Operating Temperature 0°C to +50°C (derate above 40°C)
Protection Rating IP20 (with cover: IP54 available)
Certifications CE, UL, cUL, RoHS, REACH, ATEX (Zone 2, optional)

Functional Features:

  • EtherCAT real-time Ethernet — cycle times down to 250 µs for distributed I/O
  • EnDat 2.2 single-turn absolute encoder — position known immediately on power-up, no homing required
  • Built-in motion profiles — trapezoidal, S-curve, point-to-point
  • Electronic cam and gearing — up to 32 cam tables, 256:1 gear ratio
  • Safe Torque Off (STO) — SIL 3 / PL e compliant (with option)
  • Flying shear and web guide — built-in algorithms for converting and printing
  • Auto-tuning — one-button motor identification (resistance, inductance, inertia, friction)

Performance Parameters:

  • Positioning Accuracy (with EnDat 2.2): ±1 encoder count (±0.044° at 8192 lines)
  • Velocity Ripple: < 0.1% at rated speed
  • Torque Ripple: < 5% of rated torque
  • Settling Time (±0.01mm): < 50 ms (typical)

Material Composition:

  • Chassis: Die-cast aluminum alloy (ADC12), anodized
  • PCB: FR-4, 6-layer, conformal coated
  • Power Stage: IGBT modules (Infineon FF600R12ME4 or equivalent)
  • Capacitors: DC-link electrolytic + film capacitors (Nippon Chemi-Con)
  • Connectors: Phoenix Contact or Weidmüller, screw-terminal type
  • Fan: Brushless DC fan, ball bearing, 40,000 hour life

Structural Features:

  • Book-style chassis — front cover with status LEDs and display
  • Top: Power terminals (DC bus + motor phases)
  • Bottom: Signal connector (EtherCAT + I/O)
  • Front: Status LED (Power, Ready, Fault, Warning)
  • Rear: Cooling fan exhaust
  • DIN rail or panel mount (with bracket)

Working Principle:
The AKD-P drive receives position/velocity/torque commands via EtherCAT. The internal DSP (Texas Instruments TMS320F28379D or equivalent) executes three nested control loops: current loop (innermost, 32 kHz), velocity loop (middle, 16 kHz), and position loop (outermost, 16 kHz). The EnDat 2.2 encoder provides absolute position feedback. The IGBT inverter converts DC bus voltage to three-phase AC with sinusoidal PWM to drive the motor.

Advantages & Highlights:

  • Highest performance in AKD family — 32 kHz current loop, 16 kHz position loop
  • EtherCAT native support — no external gateway needed
  • EnDat 2.2 absolute feedback — eliminates homing, fastest startup
  • Extensive built-in motion functions — reduces PLC programming load
  • Compact footprint — high power density

Applicable Industries:

  • High-speed packaging machines
  • Semiconductor wafer handling
  • CNC machining (milling, turning)
  • Robotics (articulated arms, SCARA)
  • Printing presses
  • Textile machinery
  • Medical device manufacturing

Installation Requirements:

  • Mount vertically with adequate clearance (minimum 100mm above, 50mm below for airflow)
  • Connect DC bus with properly rated cable (min. 6 mm² for 2.4 kW)
  • Connect motor phases with shielded cable (max 10m recommended)
  • Connect EtherCAT cable (Cat5e/Cat6, shielded, with RJ45 connectors)
  • Ground chassis to protective earth (PE)

Usage Notes:

  • Perform auto-tuning before first operation — do not skip motor identification
  • Set current limit to 110% of motor rated current during tuning
  • Use shielded EtherCAT cable in high-EMI environments
  • Update firmware via Kollmorgen Workbench before commissioning
  • STO function requires external 24V contactor if SIL 3 is mandated

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