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-251 — WARN Failed to find Upper limit

FANUC PAIN-251 (“WARN Failed to find Upper limit”): Accustat could not reach the upper flow limit in the number of times set at the calibration screen. First check: N/A

Updated 2026-09-17 · LogrobotLM reference

Description

Accustat could not reach the upper flow limit in the number of times set at the calibration screen. The upper limit flow rate can not be achieved. Fluid restricter is too small. The flow rate or can position feedback is unstable.: Verify all equipment is working properly. Check Color Data upper limit. Check applicator parameters to make sure that AppParameter Max limit is not belowthe AccuStat Color Data upper limit. Increase Auto cal hi/lowtolerance or Trys for hi/low from the AccuStat setup screen. Check feedback.

Remedy

N/A

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 →