1. General Information

2. Specifications

• Power Supply: DC 24 V ±10%, supplied from the controller internal power supply unit

• Max Current Consumption: Approximately 2.0 A (depends on inserted boards)

• Operating Temperature: 0 °C to +55 °C

• Storage Temperature: -20 °C to +70 °C

• Humidity: 30% to 85% RH (non-condensing)

• Altitude: Up to 1000 m

• Vibration: 0.5 G or less (operating)

• Dimensions: Standard DX100/DX200 cabinet backplane size

• Weight: Approx. 1.2 kg

• Material: Glass epoxy PCB, gold-plated edge connectors, metal mounting brackets

3. Board Configuration & Slot Assignment

1. CPU Slot: For JANCD-YCPxx series CPU board

2. Safety Slot: For JANCD-YSF21-E / YSF22-E safety board

3. Servo Interface Slot: For JANCD-YIF01-4E robot axis interface board

4. I/O Expansion Slots: For JANCD-YIO21-E, JANCD-Y1021, and other optional I/O boards

• Power connectors: For internal 24 VDC distribution

• Bus connectors: For system communication between boards

• Ground terminals: For cabinet ground connection

4. Safety Precautions

• Always disconnect the main power before installing, removing, or touching the backplane or any board.

• After power-off, wait at least 15 minutes for internal capacitors to discharge before handling.

• Do not insert or remove boards while power is applied; this may cause permanent damage and fire hazard.

• Ensure proper grounding of the backplane and cabinet to prevent electric shock and noise issues.

• Do not expose the board to water, oil mist, dust, or direct sunlight.

• Use only the identical model (JANCD-YBB01) for replacement.

• Do not bend, drop, or apply excessive force to the PCB.

• Keep the backplane clean; use only a dry cloth for cleaning.

5. Installation Procedure

1. Power OFF: Turn off the controller main power and wait 15 minutes.

2. Cabinet access: Open the controller front door.

3. Mounting position: Locate the backplane mounting area in the cabinet rack.

4. Fixing: Align the backplane with the mounting holes and secure it with four screws (two at top, two at bottom). Do not over-tighten.

5. Board insertion:

   • Insert CPU board into CPU slot until fully seated.

   • Insert safety board, servo interface board, and I/O boards into their respective slots.

   • Ensure each board is fully inserted and locked with the slot latch.

6. Internal wiring: Connect 24 VDC power cables and ground wires to the designated terminals on the backplane.

7. Close cabinet: Close and lock the cabinet door.

8. Power ON: Restore main power and verify normal system startup.

6. Replacement Instructions

1. Backup data: Before replacement, back up all robot programs, parameters, and system data using the teach pendant or external storage.

2. Power OFF: Disconnect main power and wait 15 minutes.

3. Remove all boards: Unplug and remove all boards (CPU, safety, I/F, I/O) from the old backplane.

4. Remove old backplane: Unscrew the four mounting screws and carefully take out the old backplane.

5. Install new backplane: Follow the installation procedure in Section 5.

6. Reinstall boards: Insert all boards into the new backplane in the correct order.

7. Restore data: After power-on, restore the backed-up data to the controller.

8. Verification: Perform a full system check and test run to confirm normal operation.

7. Troubleshooting

No power to backplane

• Check that the main power is ON.

• Verify 24 VDC power supply output.

• Check loose or damaged power cables.

• Confirm backplane fuse (if equipped) is intact.

System fails to boot after replacement

• Ensure all boards are fully inserted and locked.

• Check for bent or dirty edge connectors.

• Verify correct slot assignment for each board.

• Restore system data and parameters.

Communication errors between boards

• Inspect edge connectors for dirt, oxidation, or damage.

• Check for loose board insertion.

• Verify backplane ground connection.

• Check for excessive noise or vibration in the cabinet.

8. Maintenance

• Periodic inspection: Every 6 months, check for loose screws, dirty connectors, or signs of overheating.

• Cleaning: Use a dry, lint-free cloth to remove dust from the PCB and connectors. Do not use liquid cleaners.

• Connector care: Keep edge connectors clean and free of oxidation. Use contact cleaner only if necessary.

• Replacement life: Recommended replacement every 5 to 8 years, or if damage, burning, or corrosion is observed.

9. Disclaimer