Digital guide
You are here:
Kollmorgen AKD-B04807-NCA
Product Series: AKD-B (AKD Basic — Standard Performance Servo Drive)
Product Introduction:
The AKD-B04807-NCA is a standard-performance servo drive from Kollmorgen’s flagship AKD product family. The AKD-B variant delivers reliable motion control for general industrial automation with full support for EtherCAT, CANopen, and analog interfaces. It is the workhorse drive for machine builders requiring proven, cost-effective servo performance.
Detailed content
Model Breakdown:
- AKD = Product Family (Advanced Kinetic Drive)
- B = Variant: Basic (Standard Performance)
- 048 = Rated Current: 48A RMS Continuous
- 07 = Hardware Revision: Revision 7
- NCA = Configuration Code: N = Network (EtherCAT primary), C = CANopen secondary, A = Analog I/O standard
Technical Specifications:
| Parameter | Value |
|---|---|
| Rated Continuous Current | 48A RMS (per phase) |
| Peak Current | 144A Peak (3 sec) |
| DC Bus Voltage | 48VDC to 340VDC (3-phase input: 340VAC to 480VAC) |
| Continuous Power Rating | ~4.8 kW (at 340VDC bus) |
| Control Loop Frequency | 2.5 kHz (Position/Velocity), 12.5 kHz (Current) |
| Position Loop Update Rate | 250 µs |
| Communication | EtherCAT (primary), CANopen, Modbus TCP/RTU, Analog |
| Feedback Support | BiSS-C, EnDat 2.2, Hiperface DSL, SSI, Incremental (A/B/Z) |
| Digital I/O | 16 Inputs / 8 Outputs (24VDC, sink/source selectable) |
| Analog I/O | 2 Analog Inputs (±10V) / 2 Analog Outputs (±10V) |
| Safe Torque Off (STO) | SIL2 / PLd (IEC 61800-5-2) |
| Safety Functions | SLS, SLP, SOS, SBP, SLP, SDI, SLS |
| Operating Temperature | 0°C to +50°C (derate above 40°C) |
| Enclosure Rating | IP20 (Chassis Mount, UL Type 1) |
| Dimensions (W×H×D) | Approx. 195mm × 210mm × 250mm |
| Weight | Approx. 4.5 kg |
| Cooling | Forced Air (Internal Fan) |
| Certifications | CE, UL, C-UL, TÜV, CCC, EAC |
Functional Features:
- EtherCAT master/slave — seamless integration with EtherCAT motion networks.
- Kollmorgen Workbench — full parameterization, tuning, and diagnostics via USB/Ethernet.
- Electronic Gear: Programmable from 1:1 to 10,000:1.
- Camming: Up to 32 cam profiles stored in drive memory.
- Synchronous Multi-Axis: Up to 8 axes synchronized via EtherCAT Distributed Clocks (DC).
- Functional Safety: Full SIL2/PLd safe torque off with dual-channel monitoring.
Working Principle:
The AKD-B04807-NCA is a three-phase PWM servo amplifier with an integrated motion controller. It receives a trajectory command (position, velocity, or torque) from the host controller via EtherCAT/CANopen. The internal DSP executes a three-loop cascade control (current loop → velocity loop → position loop) at 2.5 kHz. The IGBT power stage (6-switch, 3-phase bridge) modulates the DC bus voltage using space-vector PWM (SVPWM) to drive the motor with sinusoidal currents. The encoder feedback closes the position loop for precise servo control.
Structural Features:
- Aluminum die-cast housing with internal EMI shielding.
- Pluggable terminal blocks for power, motor, encoder, and I/O.
- Integrated braking chopper — no external braking resistor required (up to 48A).
- Front-panel LED indicators for status and fault codes.
- USB port for local commissioning.
- Ethernet port (RJ45) for EtherCAT/Modbus TCP.
Material Composition:
- Housing: Die-cast Aluminum ADC12 with powder coat finish
- Power Stage: IGBT modules (600V/75A class)
- PCB: FR-4, conformal coated
- Connectors: Pluggable screw-terminal blocks (Phoenix Contact or equivalent)
Advantages:
- Proven platform — millions of units deployed globally.
- Full EtherCAT support — industry-leading cycle times.
- Integrated safety — no external safety relay needed.
- Compact footprint for 48A rating.
- Extensive diagnostic capability — real-time current, voltage, temperature monitoring.
Applicable Industries:
- CNC machining centers
- Injection molding machines
- Printing and converting
- Material handling and logistics
- Textile machinery
- General industrial automation
Installation Requirements:
- Mount on DIN rail (TS35) or panel mount — use 4× M4 screws.
- DC bus wiring: Use minimum 10mm² copper cable for 48A continuous.
- Motor wiring: Use shielded cable, maximum 15m (Kollmorgen CH series recommended).
- Ground connection: Chassis PE to panel ground — ≤ 0.1Ω.
- Cooling: Ensure minimum 50mm clearance above and below drive for airflow.
- EtherCAT network: Use shielded CAT5e/CAT6 cable, maximum 100m per segment.
Usage Precautions:
- Do not operate above 340VDC on DC bus — will damage IGBTs.
- Derate current 10% per 10°C above 40°C ambient.
- Do not disconnect encoder while motor is energized — drive will fault.
- Update firmware only via Kollmorgen Workbench — do not use unofficial tools.
- Brake resistor required only for regen > 3kW — internal chopper handles lower regen.
