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FANUC Alarm FRCE-502 — Illegal overrun length (F:…)

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

FANUC FRCE-502 (“Illegal overrun length (F:…)”): The value of 'Individual Diff. First check: 'Individual Diff.

Updated 2026-09-17 · LogrobotLM reference

Description

The value of 'Individual Diff. (+)' in Basic Data is illegal.

Remedy

'Individual Diff. (+)' must be between 0 and 10000.

Related codes

FRCE-500Illegal reduction ratio (F:…)FRCE-501Illegal velocity adjust switch (F:…)FRCE-508AIT X direction environment NG (F:…)FRCE-509AIT Y direction environment NG (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 →