Description
🔧 A16B-2203-0622 — Description
A16B-2203-0622 is a FANUC PCB (Printed Circuit Board) used inside spindle amplifier modules (aiSP series) in CNC machines.
📌 Full Technical Description
- Manufacturer: FANUC
- Part Number: A16B-2203-0622
- Type: Spindle drive PCB / servo add-on board
- Series: A16B-2203
- Category: CNC / spindle amplifier circuit board
⚙️ Function (What it does)
- Works as a spindle drive control & power interface board
- Handles:
- Internal control signals for spindle operation
- Power section interfacing
- Communication between CNC control and spindle amplifier
👉 In simple terms:
It is a key internal board that helps run the spindle motor via the amplifier.
🔍 Specific Role (Important)
- Identified as:
- “Spindle drive board / PCB”
- “Servo add-on module / board”
- Used specifically in:
- FANUC A06B-6141 series spindle amplifiers
- Also described as:
- PCB for aiSP-30 spindle amplifier module
🏭 Where it is used
- Installed inside:
- FANUC Alpha i spindle amplifier modules
- Example compatibility:
- A06B-6111-H030#H550
- A06B-6112-H030#H550
🧩 Key Characteristics
- Internal board (not standalone)
- Part of spindle amplifier assembly
- Works with:
- Spindle motor
- CNC control system
- Often labeled with suffix (e.g., /03A, /07A, /11B variants)
⚠️ Important Notes
- ❗ Discontinued by manufacturer (common for this series)
- ❗ Usually repaired or replaced as part of full spindle module
- ❗ Exact matching required (suffix matters)
- ❗ Failure symptoms:
- Spindle not rotating
- Drive alarm
- Power/control fault
👍 Summary
A16B-2203-0622 = FANUC spindle amplifier PCB (drive/control board)
➡️ Used inside A06B-6141 spindle amplifiers
➡️ Controls and interfaces spindle drive operation
➡️ Critical internal board in CNC spindle system