LogrobotLM

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FANUC Alarm PROG-026 — WARN No more motion history

FANUC PROG-026 (“WARN No more motion history”): Backward execution cannot be used any more. First check: Do not use backwards execution here.

Updated 2026-09-17 · LogrobotLM reference

Description

Backward execution cannot be used any more. The current line is on top of the memorized path.

Remedy

Do not use backwards execution here.

Related codes

PROG-024WARN Not have motion historyPROG-025WARN Cannot execute backwardsPROG-027WARN Invalid task numberPROG-029WARN Buffer size is not enough

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 →