Description
š§ FANUC A06B-6114-H304 ā 3-Axis Alpha i Servo Amplifier
FANUC A06B-6114-H304 Servo Amplifier
š§ Model Description
A06B-6114-H304 is a FANUC Alpha i (αi) servo amplifier module designed for 3-axis control. It belongs to the 6114 series and is typically identified as:
š SVM3-20/20/40i (3-axis servo module)
āļø Key Technical Details
- Type: AC Servo Amplifier
- Series: Alpha i (αi)
- Axes: 3 axes (triple-axis)
- Model: SVM3-20/20/40i
-
Configuration:
- Axis 1 ā 20A class
- Axis 2 ā 20A class
- Axis 3 ā 40A class
- Interface: FSSB (fiber optic communication)
āļø What It Does
This amplifier:
- Drives three servo motors simultaneously
- Provides:
- Position control
- Speed control
- Torque control
- Handles mixed load axes (two medium + one higher power axis)
- Synchronizes motion across axes for CNC machining
š Simple explanation:
One amplifier controls 3 axes, where one axis needs higher power than the others.
š Applications
- CNC machining centers (X, Y, Z axes with heavier Z or spindle feed axis)
- CNC milling machines
- Industrial automation systems with uneven axis load requirements
Commonly paired with:
- FANUC 0i / 16i / 18i / 21i controllers
- αi series servo motors
š Key Features
- ā 3-axis integrated amplifier (space saving)
- ā Mixed current rating (20/20/40) ā flexible axis sizing
- ā High precision motion control
- ā Fiber optic CNC communication (FSSB)
- ā Compatible with internal boards like:
- A16B-2203 series (logic PCBs)
- A20B-2101 series (control boards)
ā ļø Important Notes
- H304 = 3-axis module (SVM3 type)
- ā20/20/40ā means:
- Two standard axes
- One higher power axis (usually Z-axis or heavy load axis)
- Requires proper matching with:
- Servo motors
- Power supply module (PSM)
- Often repaired/refurbished instead of replaced
š§ Simple Explanation
š A06B-6114-H304 is a 3-axis FANUC servo amplifier where two axes are medium power and one axis is higher power, allowing it to handle uneven load requirements in CNC machines.

