LogrobotLM

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FANUC Alarm FRCE-450 — Unknown F/C type (F:…)

Manufacturer wording — Unknown F/C type (F:%d^1)
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC FRCE-450 (“Unknown F/C type (F:…)”): An internal error has occurred. First check: Document the events that led to the error, and contact your FANUC or FANUC Robotics technical representative.

Updated 2026-09-17 · LogrobotLM reference

Description

An internal error has occurred.

Remedy

Document the events that led to the error, and contact your FANUC or FANUC Robotics technical representative.

Related codes

FRCE-448Exchange impedance data failed (F:…)FRCE-449Exchange frequency failed (F:…)FRCE-451Unknown initializing status (F:…)FRCE-452Illegal cool down rate (F:…)

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 →