LogrobotLM

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FANUC Alarm BBOX-027 — Invalid line numbers

FANUC BBOX-027 (“Invalid line numbers”): Bump schedule Lines in the are not correct. First check: Set valid Line numbers in the Bump schedule.

Updated 2026-09-17 · LogrobotLM reference

Description

Bump schedule Lines in the are not correct.

Remedy

Set valid Line numbers in the Bump schedule.

Related codes

BBOX-025Invalid acknowledge output DOBBOX-026Invalid error output DOBBOX-028Bump limit exceededBBOX-029First 2 positions are too close

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 →