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 → · Le diagnostic IA qui lit la sauvegarde de votre robot, sans rien téléverser.

FANUC Alarm PAIN-109 — WARN Conveyor direction incorrect

FANUC PAIN-109 (“WARN Conveyor direction incorrect”): For continuous line only. First check: Swap the leads on the encoder repeater board so that the encoder counts positive counts instead of negative

Updated 2026-08-29 · LogrobotLM reference

Description

For continuous line only. The robot has determined the conveyor is running in the wrong direction. Part detects will be ignored by the robot

Remedy · Remède

Swap the leads on the encoder repeater board so that the encoder counts positive counts instead of negative

Frequently asked · Questions fréquentes

What does FANUC alarm PAIN-109 mean?
FANUC PAIN-109 (“WARN Conveyor direction incorrect”): For continuous line only. The robot has determined the conveyor is running in the wrong direction. Part detects will be ignored by the robot
How do you troubleshoot FANUC alarm PAIN-109?
Swap the leads on the encoder repeater board so that the encoder counts positive counts instead of negative

Related codes / Codes liés

PAIN-107WARN Encoder count rolloverPAIN-108WARN Part Detect less than min distPAIN-110WARN %s skipped-over max travelPAIN-111WARN Waiting for part in window

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. · Informations indicatives issues du terrain — le manuel du constructeur et ses procédures de sécurité font foi. Ne shuntez jamais un organe de sécurité ; consignez (LOTO) avant toute intervention physique. How this reference is built →