LogrobotLM — AI fault diagnosis for ABB · KUKA · FANUC robots. It reads your robot backup in your browser (never uploaded) and pinpoints the fault. Try it free →

FANUC Alarm FRCE-203 — Joint axis limit error (F:…)

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

FANUC FRCE-203 (“Joint axis limit error (F:…)”): One or more joint(s) has approached its stroke limit. First check: Force control must not be executed near a joint limit.

Updated 2026-09-17 · LogrobotLM reference

Description

One or more joint(s) has approached its stroke limit.

Remedy

Force control must not be executed near a joint limit.

Related codes

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 →