FANUC Alarm OPTN-008 — WARN Requires: `… '

Manufacturer wording — WARN Requires: `%s '
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC OPTN-008 (“WARN Requires: `… '”): The required floppy disk was not used. First check: Reinstall the option using the required floppy disk.

Updated 2026-09-17 · LogrobotLM reference

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 →