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FANUC Alarm TPIF-051 — WARN Program has been selected by PNS

FANUC TPIF-051 (“WARN Program has been selected by PNS”): When a program has been selected by PNS, you cannot select program from SELECT First check: Turn off the PNSTROBE signal.

Updated 2026-09-17 · LogrobotLM reference

Description

When a program has been selected by PNS, you cannot select program from SELECT

Remedy

Turn off the PNSTROBE signal.

Related codes

TPIF-049WARN Port number is invalidTPIF-050WARN Macro does not existTPIF-052WARN FWD/BWD is disabledTPIF-053WARN Not editing background program

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 →