1. General Information

2. Specifications

• Control Axes: Up to 9 axes (robot + external)

• Power Supply: DC 24 V ±10% (brake power input)

• Fuse: F1 = 3 A / 250 V (on-board)

• Max Output Current: Per axis ≤1 A (relay drive)

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

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

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

• Dimensions (W×H×D): Approx. 154 × 284 × 26 mm

• Weight: Approx. 0.76 kg

• Mounting: Standard backplane slot (JANCD-YBB01/YBB02)

3. On-Board Connectors & Layout

• CN400: Brake Output – to motor brakes (9 axes)

• CN402: Contactor Interlock Input – safety interlock signal

• CN403: Brake Power Supply Input – DC24V for brakes

• CN404: External Power Supply Switch – for brake power switching

• CN405: Brake Command Input – from main axis board (SRDA-EAXA01)

• F1: 3A/250V fuse (brake circuit protection)

• Relays: 9× brake control relays (one per axis)

• LEDs: Power ON, Brake Active, Fault

4. Safety Precautions

• Disconnect main power before installation/removal; wait 15 minutes for capacitor discharge.

• Never release brakes without mechanical support (axis will drop under gravity – crush hazard).

• Do not connect/disconnect brake cables while power is ON.

• Ensure proper grounding of board and cabinet.

• Keep away from water, oil mist, dust, and direct sunlight.

• Use only JANCD-YBK01-□E replacement; do not substitute other models.

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

• Use a dry lint-free cloth only for cleaning.

5. Installation Procedure

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

2. Cabinet Access: Open front door; locate YBB01/YBB02 backplane slot.

3. Board Insertion:

   • Align YBK01 with the target slot (usually I/O expansion slot).

   • Push firmly until fully seated (latch clicks).

4. Cable Connection:

   • CN400 → motor brake cables (9 axes).

   • CN403 → DC24V brake power.

   • CN405 → brake command cable from main axis board.

   • CN402 → contactor interlock (safety circuit).

5. Close Cabinet: Secure door; restore main power.

6. Verification: Check “Brake Ready” LED; test brake operation via teach pendant.

6. Replacement Instructions

1. Backup Data: Save programs, parameters, and system data.

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

3. Disconnect Cables: Unplug CN400, CN402, CN403, CN404, CN405.

4. Remove Old Board: Release latch; pull board straight out.

5. Install New Board: Follow Section 5 steps 3–4.

6. Reconnect Cables: Verify correct connector assignment.

7. Power ON & Test: Check LEDs; perform brake ON/OFF test for all axes.

7. Troubleshooting

Brakes won’t release

• Check CN403 DC24V input (24V ±10%).

• Verify F1 fuse continuity (3A).

• Confirm CN405 brake command signal from main board.

• Check for loose CN400 brake output cables.

Brakes won’t engage (axis drifts)

• Verify CN402 interlock signal is closed.

• Check for stuck relays on YBK01.

• Confirm no brake coil short circuits.

LED fault indicator ON

• Inspect for short circuit in brake wiring.

• Check overcurrent on any axis brake coil.

• Replace YBK01 if internal relay damage is confirmed.

8. Maintenance

• 6-Month Inspection: Check connectors for tightness, fuse condition, and dust buildup.

• Cleaning: Use dry lint-free cloth; avoid touching relay contacts.

• Connector Care: Clean with contact cleaner if oxidation occurs.

• Replacement Life: 5–8 years (or immediately if burned, corroded, or relays fail).

9. Compatibility

• Compatible: DX100/DX200 with YBB01/YBB02 backplanes.

• Variants:

  • JANCD-YBK01-1E: Standard (6 axes + 3 external)

  • JANCD-YBK01-2E: High-current version (for heavy external axes)

• Not Compatible: NX100/NX200 (different backplane/slot format).

10. Disclaimer