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ABB Error 0109 — Link CPU axis fault

Error

ABB 0109 (“Link CPU axis fault”): Axis transmission error between the I/O computer and the central computer. Likely part: Liaison CPU d'axes (link CPU axis).

Updated 2026-10-22 · LogrobotLM reference

What it means

Axis transmission error between the I/O computer and the central computer.

What to check

  • Replace the cabinet computer board.
  • Note: Similar to Ethernet or VME link drops between the main CPU and the axis CPU (32575).

Part to check / replace

ABB 0109 points to the hardware below — start here before ordering.

Tap a part for every code that points to it — and verify the exact variant for your controller before ordering.

Related codes

508Floppy disk drive fault509Axis / resolver fault510CPU / PROM fault

Indicative field information — the robot manufacturer's manual and safety procedures always prevail. Never bypass a safety device; apply lockout/tagout (LOTO) before any physical intervention. How this reference is built →