Description
🔧 FANUC A06B-6111-C026 – Full Description
The A06B-6111-C026 is a very high-power servo amplifier module from FANUC, designed for controlling large-capacity servo motors in heavy-duty CNC machines and industrial systems.
📌 Basic Identification
- Part Number: A06B-6111-C026
- Type: Servo Amplifier / Servo Drive
- Series: A06B-6111 (αi series compact servo amplifiers)
- Application: CNC axis control
⚙️ Function
This module acts as the drive unit for servo motors, providing:
- 🌀 High-precision position and speed control
- ⚡ Very high torque output for heavy axis movement
- 🔄 Smooth acceleration & deceleration
- 🎯 Closed-loop control using encoder feedback
👉 In simple terms:
It enables powerful and accurate motion of CNC machine axes.
⚡ Technical Overview
- Power Class: ~26 kW (servo class equivalent)
- Input Voltage: Typically 200–240 VAC
- Output Current: Extremely high current capacity
- Cooling: Forced air cooling (heavy-duty fan + heat sink)
- Communication: FANUC serial servo interface (FSSB)
🧩 Key Features
- ⚙️ Compact but ultra high-capacity design
- 🔗 Fully compatible with FANUC CNC systems
- 🎯 Excellent stability under heavy loads
- 🔧 Supports repair, refurbishment, and exchange programs
🧩 Applications
Used in:
- Large CNC machining centers
- Heavy-duty gantry machines
- Large CNC lathes
- Applications requiring very high torque servo axes
🔧 Internal Construction
Inside the module:
- Power PCB (A16B-2203 series)
- Control PCB (A20B series)
- IGBT modules for high-current switching
- Heavy-duty cooling system
⚠️ Typically serviced as a complete module, not board-level repair.
🚨 Common Fault Symptoms
If faulty, typical issues include:
- Axis not moving
- SERVO / SV / ALM alarms
- Overcurrent or overload trips
- Axis stopping under load
- Drive alarm LED ON
📊 Position in FANUC Range (6111 C-Series)
| Model | Power Level |
|---|---|
| C002 | Low power |
| C006 | Medium power |
| C011 | High power |
| C015 | Very high power |
| C022 | Ultra high power |
| C026 | Extreme high power |
👉 C026 = one of the highest capacity servo amplifiers in 6111 series
🔄 Variants
Common versions:
- A06B-6111-C026#H550 / #H580
➡️ Minor firmware/interface variations.
✅ Summary
A06B-6111-C026
➡️ FANUC αi series servo amplifier
➡️ Designed for ~26 kW class servo motors
➡️ Used in large, heavy-duty CNC axis applications