LogrobotLM

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-259 — WARN Failed to reach setpoint

FANUC PAIN-259 (“WARN Failed to reach setpoint”): The Tolerance Band is too narrow(low), or the regulator is not working properly The adaptive gain for that color may be too low, not and the flow rate is not adapting fast enough. First check: N/A

Updated 2026-09-17 · LogrobotLM reference

Description

The Tolerance Band is too narrow(low), or the regulator is not working properly The adaptive gain for that color may be too low, not and the flow rate is not adapting fast enough. The potentiometer is not operating properly. The trigger delay may not be set properly, if trigger events are too close together.: Check regulator operation andAdaptive Gain settings in the AccuStat Color Data for that color valve. Verify the triggerdelays are setup properly.

Remedy

N/A

Related codes

PAIN-256WARN Calculated output < Min OutputPAIN-257WARN Canister Out Of PaintPAIN-260WARN TPR exceeds Can VolumePAIN-261WARN Canister Fill Error

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 →