Description
Here’s a clear technical description for the FANUC A06B-6117-H201 Servo Amplifier:
📦 Product Overview
Part Number: A06B‑6117‑H201
Series: FANUC Alpha i Servo Amplifier (A06B‑6117)
Model: AiSV‑4/4 (2‑axis module)
Type: AC Servo Amplifier / Drive Module
⚙️ What It Is
The A06B‑6117‑H201 is a dual‑axis servo drive module used in FANUC CNC and industrial motion control systems. It regulates and supplies power to two servo motors, allowing precise control of machine axes such as X/Y or Y/Z in CNC machines.
This type of amplifier:
- Receives command signals from a FANUC CNC controller
- Drives servo motors with controlled current and voltage
- Manages position, speed, and torque feedback loops
- Communicates with the controller typically via FSSB (fiber optic servo bus) or equivalent system link
🔩 Key Characteristics
- Dual‑axis operation – drives two separate motor axes in one module
- Alpha i series (A06B‑6117) – FANUC’s intelligent servo drive family
- Includes required protections and monitoring for faults and over‑load conditions
- Often supplied on core exchange basis (return of old unit for credit) and repairable
🏭 Typical Uses
This servo amplifier module is widely used in:
- CNC machining centers
- CNC milling and turning machines
- Multi‑axis industrial automation systems
- Robotics where precise motion control of two servo axes is needed
🧠 Easy Explanation
👉 The A06B‑6117‑H201 is essentially the power and control unit that drives two FANUC servo motors in a CNC system — handling the electrical drive and motion control tasks so that the machine axes move with precision as programmed.

