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Kollmorgen AKD-P04807-NCA
Product Introduction:
The AKD-P04807-NCA is a single-axis digital servo drive from Kollmorgen’s AKD-P product line, rated at 48 A continuous current and 7 kW power output. The “NCA” configuration denotes a standard single-axis drive with regenerative braking capability via an external braking resistor, no built-in braking chopper, CANopen communication interface, and 24 VDC logic power.
Detailed content
Model Series: AKD-P Series
Technical Specifications:
| Parameter | Value |
|---|---|
| Continuous Current (RMS) | 48 A per phase |
| Peak Current | 144 A (3 seconds) |
| Rated Power | 7.0 kW (at 325 VDC bus) |
| DC Bus Voltage | 325 VDC (nominal), 200–540 VDC range |
| Input Voltage | 3-phase 380–480 VAC (50/60 Hz) |
| Communication Interface | CANopen (CiA 402) |
| Control Modes | Position, Velocity, Torque, Cyclic Synchronous |
| Encoder Input | Differential RS-422 (EnDat 2.2, Hiperface DSL, BiSS) |
| Digital I/O | 8 inputs / 4 outputs (24 VDC) |
| Analog I/O | 2 analog inputs (±10 V) / 1 analog output (±10 V) |
| PWM Frequency | 8 kHz (default), configurable up to 16 kHz |
| Current Loop Bandwidth | 1.2 kHz |
| Velocity Loop Bandwidth | 400 Hz |
| Position Loop Bandwidth | 200 Hz |
| Regeneration | External braking resistor required |
| Braking Resistor Rating | 1.5 kW (external, user-supplied) |
| Operating Temperature | 0°C to 50°C (derate above 40°C) |
| Enclosure Rating | IP20 (chassis mount) |
| Dimensions (W×H×D) | 140 mm × 220 mm × 210 mm |
| Weight | 3.8 kg |
| Safety Certifications | UL 508C, CE, cULus |
Structural Features:
- Book-style chassis-mount enclosure
- Screw-terminal power and motor connections
- DIN rail or panel mount capability
- Integrated heatsink with forced-air cooling fan
- Modular terminal blocks for field wiring
Material Composition:
- Enclosure: Galvanized steel with powder-coat finish
- Heatsink: Extruded aluminum (6063-T5)
- Power Electronics: IGBT modules (650 V rating)
- PCB: FR-4, conformal coated
- Connectors: Phoenix Contact or equivalent industrial terminals
Working Principle:
The AKD-P04807-NCA receives a three-phase AC input, rectifies it to a DC bus (325 VDC nominal), and uses IGBT-based PWM inverter stages to synthesize three-phase sinusoidal currents for the servo motor. The drive implements a three-loop cascade control architecture: inner current loop (1.2 kHz), middle velocity loop (400 Hz), and outer position loop (200 Hz). CANopen interface provides real-time command and status exchange with the host controller. During deceleration, kinetic energy is dissipated through an external braking resistor connected to the DC bus.
Functional Features:
- Autotuning capability for PID gain optimization
- Feedforward control (velocity, acceleration, torque)
- Electronic gear ratio (1:1 to 10000:1)
- Profile generation: Trapezoidal, S-curve, point-to-point
- Electronic camming and coordinated multi-axis motion
- Fault logging with timestamped event recording
- Safe Torque Off (STO) per IEC 61800-5-2
Advantages:
- High current capacity (48 A continuous) for large servo motors
- CANopen communication for seamless integration with PLCs and motion controllers
- Flexible regeneration via external resistor (no internal chopper cost)
- Wide bus voltage range (200–540 VDC) for global deployment
- Built-in motion profiles reduce host controller processing load
Applicable Industries:
- Metal forming and stamping machines
- Injection molding machines
- Large CNC routers and mills
- Material handling conveyors
- Printing and converting equipment
- Heavy-duty robotics
Installation Requirements:
- Mount vertically with heatsink fins unobstructed (minimum 100 mm clearance above and below)
- Connect external braking resistor (1.5 kW, 50 Ω typical) to P/N terminals
- Use shielded twisted-pair for encoder cable (max 30 m for EnDat 2.2)
- Ground chassis to protective earth (PE)
- Provide 24 VDC power for logic (max 2 A draw)
- Ensure ambient temperature does not exceed 50°C
Usage Notes:
- An external braking resistor is mandatory; operation without one will cause DC bus overvoltage fault (F07)
- Verify motor inductance matches drive rating (typical range: 0.5–5.0 mH)
- Configure current limit to 110% of motor rated current for peak demands
- Update firmware to latest revision for optimal performance
