FANUC Alarm FRCE-454 — Tool weight is uninit (F:…)

Manufacturer wording — Tool weight is uninit (F:%d^1)
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC FRCE-454 (“Tool weight is uninit (F:…)”): Software internal error. First check: Contact FANUC or FANUC Robotics and report the error status.

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 →