LogrobotLM — AI fault diagnosis for ABB · KUKA · FANUC robots. It reads your robot backup in your browser (never uploaded) and pinpoints the fault. Try it free →

FANUC Alarm PAIN-591 — WARN RDU Full - Proc Champ disabled

FANUC PAIN-591 (“WARN RDU Full - Proc Champ disabled”): The report file generated by Process Champion has filled the RDU device to its capacity. First check: Re-enable Process Champion auto mode by setting the 'Set Process Champion Mode' parameter to Auto.

Updated 2026-09-17 · LogrobotLM reference

Description

The report file generated by Process Champion has filled the RDU device to its capacity. This forces the system to disable Process Champion auto mode so that no further auto appending is performed on the file. The file has been copied to FR: and is deleted from RDU:

Remedy

Re-enable Process Champion auto mode by setting the 'Set Process Champion Mode' parameter to Auto. To prevent FR: from filling to capacity, remove the file from FR: to another device, ie PCMCIA card.

Related codes

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 →