Description
🔧 FANUC A06B-6117-H303 – Alpha i Servo Amplifier (3-Axis, Medium Power)
FANUC A06B-6117-H303 Servo Amplifier
🧠 Model Description
A06B-6117-H303 is a FANUC Alpha i (αi) servo amplifier module from the 6117 series, designed for 3-axis control with medium power capacity.
👉 Common designation: SVM3-20/20/20i
⚙️ Key Technical Details
- Type: AC Servo Amplifier
- Series: Alpha i (αi) – 6117 (newer generation)
- Axes: 3 axes (triple-axis module)
- Model: SVM3-20/20/20i
-
Current Rating:
- Axis 1 → 20A
- Axis 2 → 20A
- Axis 3 → 20A
- Communication: FSSB (fiber optic servo bus)
⚙️ What It Does
This amplifier:
- Drives three servo motors simultaneously
- Controls:
- Position
- Speed
- Torque
- Ensures precise synchronized motion across axes
- Communicates with CNC via fiber optic (FSSB)
👉 Simple explanation:
One amplifier controls 3 medium-power CNC axes together.
🔍 6117 Series Advantage
Compared to older 6114 models:
- ✔ Improved efficiency and thermal design
- ✔ More compact and reliable
- ✔ Better heat dissipation
- ✔ Same multi-axis concept (3-in-1 amplifier)
🏭 Applications
- CNC machining centers
- CNC milling machines
- Medium-load multi-axis systems
- Industrial automation requiring synchronized motion
Typical axes:
- X, Y, Z axes in standard machining centers
🔑 Key Features
- ✔ 3-axis integrated amplifier (space saving)
- ✔ 20/20/20 rating → equal medium load per axis
- ✔ High precision positioning
- ✔ Built-in diagnostics and protection
- ✔ Compatible with αi servo motors
⚠️ Important Notes
- H303 = 3-axis module (SVM3 type)
- “20/20/20” = equal power on all three axes
- Requires:
- Power supply module (PSM)
- Matching αi servo motors
- Often serviced/repaired instead of replaced
🧠 Simple Explanation
👉 A06B-6117-H303 is a 3-axis FANUC servo amplifier designed for medium-power applications, controlling three CNC axes from a single compact unit.