Basic Information

• Model: JANCD‑NCU31B

• Alternative PN: F351916‑1, 152332‑1

• Revision: Rev. B0 (common)

• Manufacturer: Yaskawa Electric / Motoman Robotics

• Applicable Controller: NXC100 series

• Type: Connector / Interface PCB

• Status: Active (new, surplus, refurbished available)

• Made in: Japan

Key Functions

• CPU Interface: Mates directly with JANCD‑NCP30 / NCP30B CPU boards, providing high‑speed signal routing and mechanical alignment.

• Signal Routing: Distributes servo, I/O, and communication signals between the CPU, backplane, and external peripherals.

• Connector Hub: Equipped with multiple edge and board‑to‑board connectors (including DSUB and ribbon cable ports) for internal interconnections.

• Mechanical Support: Acts as a structural adapter inside the NXC100 chassis, ensuring stable mating of plug‑in modules.

• EMI Filtering: Includes basic noise suppression and optimized ground planes for improved EMC performance.

Compatibility

• Exclusively for: NXC100 controllers

• Works with: JANCD‑NCP30 / NCP30B (CPU), NXC100 backplane, and NTU30B (terminal I/O board)

• Not compatible with: NX100, YRC1000, DX series controllers

• Replaces: JANCD‑NCU31 (Rev. A) – pin‑to‑pin compatible, with minor layout/filter upgrades.

Technical Notes

• Form Factor: Compact, slot‑mounted L‑shaped PCB inside NXC100.

• Power: Supplied via internal backplane (24 VDC).

• Connectors: Typically includes 2× servo connectors, 1× DSUB (RS‑232/485), and 1× ribbon cable I/O port.

• Condition: Available as new original, surplus, or tested refurbished (usually with 90‑day warranty).

NCU31B vs NCU30B

• NCU31B: NXC100, L‑shaped, dedicated CPU interface, higher signal integrity, Rev. B.

• NCU30B: NXC100, rectangular, general I/O routing, fewer high‑speed ports.