1. General Information

• Model: AIF01A

• FANUC Part Numbers:

  • A03B-0807-C011 (for 16i/18i/21i‑A series)

  • A03B-0819-C011 (for 16i/18i/21i‑B series)

• Type: FSSB (FANUC Servo Bus) I/O Interface Module

• Function: Acts as a bus bridge between the CNC system and ABU05A/ABU10A I/O racks, managing all I/O module communications.

• Weight: Approx. 0.2 kg (0.44 lbs)

• Installation: Must be inserted into the leftmost slot of the ABU05A (5‑slot) or ABU10A (10‑slot) I/O rack.

2. Specifications

• Communication Protocol: FSSB (high‑speed servo bus)

• Controllable I/O Modules:

  • ABU10A: Up to 10 modules

  • ABU05A: Up to 5 modules

• Power Supply: 24 VDC ±10%, max. 2 A

• Power Consumption: ≤ 10 W

• Interfaces:

  • JD1B: FSSB input (from CNC or upstream module)

  • JD1A: FSSB output (to downstream I/O module)

  • CP1: 24 VDC power input

• Operating Temperature: −10°C to +50°C

• Storage Temperature: −20°C to +70°C

• Protection Class: IP20 (front panel)

• Dimensions (W×H×D): 100 mm × 50 mm × 30 mm

3. Compatibility

3.1 CNC Systems

• ✅ 16i‑A / 18i‑A / 21i‑A (uses A03B-0807-C011)

• ✅ 16i‑B / 18i‑B / 21i‑B (uses A03B-0819-C011)

• ✅ 0i‑B / 0i‑C (when paired with ABU racks)

3.2 I/O Racks

• ✅ ABU05A (5‑slot base unit)

• ✅ ABU10A (10‑slot base unit)

4. Main Features

• Real‑time Communication: High‑speed data transmission for all digital/analog I/O modules in the rack.

• Bus Stability: Robust FSSB bus design with strong anti‑interference capability.

• Easy Installation: Standard rack‑mounting structure for quick replacement.

• LED Status Indicators: For power, run, and fault diagnostics.

• Centralized Management: Controls digital inputs/outputs, analog modules, and special function modules.

5. Installation Procedure

1. Power Off: Cut off all power to the CNC and I/O rack.

2. Insert Module: Slide the AIF01A into the leftmost slot of the ABU05A/ABU10A rack.

3. Secure: Tighten the front‑panel fixing screws.

4. Connect Power: Attach the 24 VDC power cable to the CP1 terminal.

5. FSSB Cabling:

   • Connect the CNC’s FSSB port to JD1B (input).

   • Daisy‑chain to subsequent I/O modules via JD1A (output).

6. Power On: Restore power and verify LED indicators for normal operation.

6. Maintenance & Troubleshooting

6.1 Routine Maintenance

• Check cable connections and screw tightness periodically.

• Keep the module surface clean and free of dust/oil.

• Do not disassemble the module without authorization.

6.2 Common Issues

• No Bus Communication:

  • Check 24 VDC power supply.

  • Inspect FSSB cable integrity and connections at JD1A/JD1B.

• System I/O Alarms:

  • Re‑seat the AIF01A module.

  • Check for damage to the FSSB bus line.

• LED Fault Indicator:

  • Verify CNC system configuration for FSSB axis assignment.

  • Check for short circuits in the I/O rack modules.

7. Ordering Information

• Model: AIF01A

• Description: FSSB I/O Interface Module for FANUC ABU I/O Racks

• Part Numbers:

  • A03B-0807-C011 (for A‑series CNC)

  • A03B-0819-C011 (for B‑series CNC)