Description
🔧 FANUC A06B-6141-C026 – Full Description
The A06B-6141-C026 is an extreme high-power servo amplifier module from FANUC’s Alpha i (αiSV) series, designed for very large and heavy-duty servo motors in industrial CNC machines. It is one of the top-tier modules in the 6141 C-series, above the C022 and below the absolute maximum class (C030).
📌 Basic Identification
- Part Number: A06B-6141-C026
- Type: Servo Amplifier / Servo Drive
- Series: A06B-6141 (αiSV series)
- Model Class: ~26 kW (extreme high-power class)
- Application: CNC axis control for ultra-heavy axes
⚙️ Function
This module provides:
- 🌀 High-precision position, speed, and torque control
- ⚡ Extreme torque output for very heavy axes
- 🔄 Smooth acceleration & deceleration under heavy load
- 🎯 Closed-loop control using encoder feedback
In short, it converts high electrical power into precise, high-torque motion for demanding CNC applications.
⚡ Technical Overview
- Power Class: ~26 kW
- Input Supply: DC bus (~283–339V DC typical for FANUC αi systems)
- Output Voltage: Up to ~240 VAC to motor
- Cooling: High-capacity forced air cooling
- Communication: FANUC serial servo interface (FSSB)
⚡ Includes regenerative braking, returning energy to the power supply during deceleration.
🧩 Key Features
- ⚙️ High-power, compact design for cabinet mounting
- 🔗 Fully compatible with FANUC CNC systems
- 🎯 Extremely stable under ultra-heavy loads
- 🔧 Supports repair, refurbishment, and exchange programs
- ⚡ Efficient and reliable for demanding industrial use
🧩 Applications
Used in:
- Large CNC machining centers
- Gantry / portal-type machines
- Heavy-duty milling, boring, or turning axes
- Large rotary tables and auxiliary high-load axes
Ideal for very heavy axes requiring ~26 kW servo drive power.
🔧 Internal Construction
Components typically include:
- Power PCB (A16B-2203 series)
- Control PCB (A20B series)
- High-current IGBT modules
- Heavy-duty forced-air cooling with heat sinks
⚠️ Typically serviced as a complete module, not individual PCB repair.
🚨 Common Fault Symptoms
- Axis does not move
- SERVO / SV / ALM alarms
- Overcurrent or overload trips
- Axis stops under heavy load
- Drive fault LED ON
📊 Position in FANUC Range (6141 C-Series)
| Model | Power |
|---|---|
| C002 | ~2.2 kW |
| C006 | ~5.5 kW |
| C011 | ~11 kW |
| C015 | ~15 kW |
| C022 | ~22 kW |
| C026 | ~26 kW (extreme high-power) |
| C030 | Maximum class |
C026 = Extreme high-power module for ultra-heavy CNC axes
🔄 Related Modules
- C022: Ultra high-power (~22 kW)
- C030: Maximum high-power (~30 kW)
Same αiSV series, differing mainly in current capacity, cooling, and torque handling.
✅ Summary
A06B-6141-C026
➡️ FANUC Alpha i AiSV servo amplifier
➡️ Designed for ~26 kW servo motors
➡️ Used in ultra-heavy-duty CNC axis applications
➡️ Compact, high-power, and fully compatible with FANUC CNC systems