Description
🔧 FANUC A06B-6141-C002 – Full Description
The A06B-6141-C002 is a compact servo amplifier module from FANUC’s Alpha i series, designed to control small-capacity servo motors in CNC machines and automation systems.
📌 Basic Identification
- Part Number: A06B-6141-C002
- Type: Servo Amplifier / Servo Drive
- Series: A06B-6141 (αiSV servo amplifier series)
- Model: AiSV-2.2 (approx class)
- Application: CNC axis control (X, Y, Z, etc.)
⚙️ Function
This module acts as the drive unit for servo motors, providing:
- 🌀 Precise position and speed control
- ⚡ Controlled torque output for axis movement
- 🔄 Smooth acceleration & deceleration
- 🎯 Closed-loop feedback using encoder signals
👉 In simple terms:
It converts electrical power into accurate axis motion in CNC machines.
⚡ Technical Overview
- Power Class: ~2.2 kW (low-power servo class)
- Input Supply: DC bus (~283–339V DC typical for αi systems)
- Output Voltage: Up to ~240V AC to servo motor
- Cooling: Compact forced air cooling
- Communication: FANUC serial servo interface (FSSB)
📌 Alpha i amplifiers are designed for high efficiency and energy regeneration (power fed back to supply during deceleration)
🧩 Key Features
- ⚙️ Compact modular design (cabinet mounting)
- 🔗 Full integration with FANUC CNC controllers
- 🎯 High precision and smooth motion control
- ⚡ Energy-efficient operation with regeneration
🧩 Applications
Used in:
- CNC machining centers
- CNC lathes
- Small-to-medium axis drives
- Rotary tables and auxiliary axes
🔧 Internal Construction
Typical internal components:
- Power PCB (A16B-2203 series)
- Control PCB (A20B series)
- IGBT modules (power switching)
- Cooling system (fan + heat sink)
⚠️ Usually serviced as a complete module, not individual PCB replacement.
🚨 Common Fault Symptoms
If faulty, you may observe:
- Axis not moving
- SV / SERVO alarms on CNC
- Overcurrent or overload trips
- Jerky or unstable axis motion
- 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+ | Higher power |
👉 C002 = entry-level servo amplifier in 6141 compact series
🔄 Important Note (6141 vs 6111)
- 6141-C series → newer, compact Alpha i servo modules
- 6111-C series → earlier compact servo amplifier design
👉 Functionally similar, but 6141 is more advanced and modular
✅ Summary
A06B-6141-C002
➡️ FANUC Alpha i AiSV servo amplifier
➡️ Designed for ~2.2 kW servo motors
➡️ Used for small CNC axis control
➡️ Compact, efficient, and widely used in modern CNC systems