Description
📦 FANUC A06B-6124-H206 — Description
Part Number: A06B-6124-H206
Official Description: Alpha i Servo Amplifier Module – SVM2-20/20HVi (Enhanced / variant)
🔧 What It Is
The A06B-6124-H206 is a FANUC Alpha i servo amplifier designed to control two servo axes in CNC and industrial automation systems.
👉 Belongs to the A06B-6124 Alpha i series
👉 Dual-axis servo amplifier (2 axes)
👉 Model: SVM2-20/20HVi
⚙️ Key Features
- Type: Servo Amplifier (Drive Module)
- Axes: 2-axis control
- Model: SVM2-20/20HVi
- Voltage Class: ~400 V AC (high-voltage type)
- Communication: FSSB (Fiber Optic Servo Bus)
- Series: Alpha i (αi)
🧠 Function
This module:
- Receives motion commands from the FANUC CNC controller
- Converts them into controlled electrical output
- Drives two servo motors with high precision in:
- Position
- Speed
- Torque
👉 Ensures synchronized movement of machine axes.
🔍 Difference: H205 vs H206
Both are SVM2-20/20HVi, but:
- H205: Standard version
- H206: Variant / updated version (may include minor hardware revision, connector change, or firmware compatibility improvement)
👉 Functionally, they are very similar and often interchangeable, but always verify:
- CNC model compatibility
- Servo motor matching
- Connector/configuration differences
🏭 Applications
Used in:
- CNC machining centers
- Turning machines (lathes)
- Multi-axis automation systems
Common with controllers:
- FANUC 0i series (0i-B / 0i-C / 0i-D)
- FANUC 16i / 18i / 21i
📊 Position in Series
| Model | Axes | Capacity | Use |
|---|---|---|---|
| H202 | 2 | 10/10 | Small motors |
| H205 | 2 | 20/20 | Medium motors |
| H206 | 2 | 20/20 | Medium motors (updated version) |

