Specifications

• Processor: FANUC custom 32‑bit RISC CPU

• Memory: SRAM (battery‑backed), DRAM (system execution)

• Power Supply: DC 24V (auxiliary), DC 5V (on‑board logic)

• Communication Interfaces:

  • 2× 10/100Base‑TX Ethernet (RJ45, TCP/IP, Modbus TCP)

  • 1× Profibus DP (12 Mbps, slave)

  • 2× RS‑232/422/485

  • High‑speed serial servo/spindle bus

  • FANUC system bus

• I/O: Digital/analog I/O channels (system‑dependent)

• Operating Temp: −10°C to +55°C (non‑condensing)

• Storage Temp: −25°C to +70°C

• Humidity: 5%–95% RH (non‑condensing)

• Protection: Overvoltage, overcurrent, ESD, surge, short‑circuit, and isolation on communication ports

Compatibility

• CNC Systems: FANUC Series 30i‑A, 31i‑A, 32i‑A

• Servo/Spindle: αi‑B, βi series amplifiers (A06B‑6160/6180)

• Applications: High‑speed machining centers, multi‑axis lathes, 5‑axis machines, and complex automation cells

Safety Instructions

1. Power off and wait ≥5 minutes for capacitor discharge before servicing.

2. Use an anti‑static wrist strap to prevent ESD damage.

3. No hot‑plugging of Ethernet/Profibus/serial cables; power down first.

4. Replace the backup battery every 2–3 years to avoid SRAM data loss.

5. Ensure proper grounding to avoid ground loops in multi‑network setups.

Installation

1. Shut down main power and apply lockout/tagout.

2. Insert the board into the designated CNC slot and secure with screws.

3. Connect DC 24V power, Ethernet (RJ45), Profibus, serial servo/spindle, and system bus cables.

4. Verify all connectors are fully seated and locked.

5. Restore power; check LED status (Ethernet link, Profibus activity, system ready) and reload CNC/PMC programs if needed.

Maintenance

1. Clean dust from PCB surface and connectors quarterly.

2. Inspect connectors for looseness, corrosion, or bent pins.

3. Check backup battery voltage; replace if low.

4. Keep control cabinet dry, free of oil mist, and within temperature specs.

5. Verify communication port isolation and cable integrity periodically.

Troubleshooting

1. No power/LEDs off: Check DC 24V supply and board seating.

2. Ethernet link down: Verify cable, RJ45 connector, IP address, and subnet mask.

3. Profibus DP fault: Check bus termination, address setting, and cable shielding.

4. Serial servo alarm: Verify wiring, amplifier communication, and bus synchronization.

5. Data loss: Replace backup battery; check battery circuit and SRAM integrity.