2. Technical Specifications

• Rated Working Voltage: DC 24V ±10%

• Operating Temperature: 0℃ ~ +55℃

• Storage Temperature: -20℃ ~ +70℃

• Relative Humidity: 10% ~ 90%, non-condensing

• Installation Type: Control cabinet standard slot plug-in mounting

• EMC Standard: Industrial grade electromagnetic anti-interference performance

• Running Mode: Support 24-hour continuous stable operation

• Insulation Standard: Compliant with international industrial electronic safety regulations

3. Product Features

1. Adopts industrial-grade PCB substrate and high-precision electronic components for stable performance.

2. Fixed dimension and structure defined by 0303 base hardware model, perfect compatibility and interchangeability.

3. Built-in over-current, over-voltage and anti-static protection circuits to protect onboard components.

4. Optimized anti-interference circuit design, adaptable to complex industrial workshop environments.

5. Strict component screening and aging testing, low failure rate and long service life.

6. Standard plug-in structure, easy installation, disassembly and daily maintenance replacement.

4. Installation Instructions

1. Cut off the main power supply completely before installation and maintenance.

2. Take anti-static measures to prevent static damage to the PCB board.

3. Confirm the complete part number A02B-0303-XXX matches the equipment requirement.

4. Clean the cabinet slot to remove dust, metal filings and foreign debris.

5. Align the board with the guide slot and insert it smoothly into position.

6. Tighten fixing screws evenly; do not over-tighten to avoid PCB deformation.

7. Connect power and signal cables strictly according to interface labels.

8. Recheck all connections, close cabinet door, then perform power-on test run.

5. Operation Precautions

1. Use only rated standard power supply; abnormal voltage input is prohibited.

2. Hot plugging and unplugging are strictly forbidden when the device is powered on.

3. Do not use in dusty, corrosive, humid or strong vibration environments.

4. Keep away from high-power inverters and strong electromagnetic interference sources.

5. Do not disassemble or modify internal circuits without professional authorization.

6. Power off immediately for inspection in case of alarm, signal abnormality or overheating.

6. Maintenance & Storage

1. Daily Maintenance: Clean surface dust regularly with dry compressed air; check connector tightness periodically.

2. Storage Environment: Dry, ventilated, dust-free and free of corrosive gas.

3. Storage Conditions: Temperature 5℃~35℃, relative humidity ≤85%, no condensation.

4. Handling: Avoid static electricity, collision, bending and heavy pressure.

5. Shelf Life: 12 months under original sealed packaging and standard storage.

7. Quality Statement

1. A02B-0303 series PCB boards comply with FANUC CNC industrial manufacturing and testing standards.

2. All products pass functional test and aging inspection before delivery.

3. This manual is applicable to original and compatible replacement parts of A02B-0303 series.