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 SYST-118 — WARN No PNS strobe input defined

FANUC SYST-118 (“WARN No PNS strobe input defined”): The PNS strobe input, which is required with the current program selection options, has not been defined. First check: Set up a PNS strobe input in the Cell Input I/O menu and restart the robot.

Updated 2026-09-17 · LogrobotLM reference

Description

The PNS strobe input, which is required with the current program selection options, has not been defined.

Remedy

Set up a PNS strobe input in the Cell Input I/O menu and restart the robot.

Related codes

SYST-116WARN No RSR echo output definedSYST-117WARN No PNS echo output definedSYST-119WARN No echo strobe output definedSYST-120WARN No style option input defined

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 →