1. General Information

• Part Number: A16B-1100-0040 / 05B (Revision: 05B)

• Manufacturer: FANUC

• Type: FAPT Graphic Board / Servo Adapter PCB (Printed Circuit Board)

• Application: FANUC CNC systems (FS-3, 0, 10/11/12/15 series), servo drive units, machine tool control

• Function: Graphics processing, servo signal adaptation, axis control interface, CNC–servo communication

• Equivalent: A320-1100-T040 (board ID)

2. Key Specifications

• Control Power: +5 V DC (±5%), ±15 V DC (±10%)

• Current Consumption: ≤1.5 A (@ +5 V)

• Board Layer: 4-layer high-density PCB

• Signal Interfaces:

  • Analog: ±10 V (speed command)

  • Digital: TTL-level I/O, servo enable/dir/alarm

  • Encoder: Serial α/β encoder input

• Processing Speed: High-frequency signal processing, response time <5 ms

• Protection: Overvoltage, overcurrent, short-circuit, ESD protection

3. Mechanical & Environmental

• Dimensions (H×W×D): 210 × 150 × 30 mm

• Weight: Approx 0.4–0.5 kg

• Mounting: Vertical rack-mounted inside servo/CNC unit

• Operating Temperature: 0 °C to +55 °C (ambient)

• Storage Temperature: −30 °C to +85 °C

• Humidity: 10%–90% RH, non-condensing

• Cooling: Forced air cooling (internal fan required)

4. Main Functions

1. Graphics Processing: FAPT (FANUC Automatic Programming Tool) graphic display & data processing

2. Servo Signal Adaptation: Converts CNC commands to servo drive signals; conditions encoder feedback

3. Axis Control Interface: Single-axis servo loop support (current/speed/position)

4. CNC–Servo Communication: Isolated signal transmission (opto-couplers) for noise immunity

5. Onboard Diagnostics: LED indicators for power, alarm, and communication status

5. Compatibility

• CNC Systems: FANUC FS-3, 0, 10, 11, 12, 15 series

• Servo Drives: 6058/6076 series, α-series servo amplifiers

• Motors: 0S/1S/2S/3S/10S series AC servo motors

• Replacement: Directly interchangeable with A16B-1100-0040/0xB (other revisions)

6. Common Alarms & Troubleshooting

• SV-01 (Overcurrent): Check motor wiring, insulation, power module

• SV-02 (Overvoltage): Verify input voltage, regeneration circuit

• SV-03 (Undervoltage): Check power supply, fuses, cabling

• SV-04 (Overheat): Inspect cooling fan, heatsink, ambient temp

• SV-05 (Speed Deviation): Check encoder, cable, motor load

• SV-06 (Encoder Error): Verify encoder connection, cable, encoder unit

7. Maintenance & Handling

• ESD Protection: Use anti-static wristband when handling PCB

• Visual Inspection: Check for burnt components, swollen capacitors, loose connectors

• Cleaning: Remove dust from PCB surface/connectors every 3–6 months

• Connector Check: Ensure pins are secure and oxidation-free

• Power Check: Confirm +5 V and ±15 V before power-up

8. Safety Notes

• High Voltage: Power off drive and discharge capacitors (≥10 minutes) before service

• Qualified Personnel: Only trained technicians may perform installation/maintenance

• Genuine Parts: Use FANUC OEM replacements for reliability