LogrobotLM

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FANUC Alarm BBOX-021 — Cannot bump from TP when I/O enabled

FANUC BBOX-021 (“Cannot bump from TP when I/O enabled”): TP is enabled when Bump DI is input. First check: 1. Select a Bump schedule, go to the DETAIL screen, scroll to the bump offset and use BUMP_UP or BUMP_DN.

Updated 2026-09-17 · LogrobotLM reference

Description

TP is enabled when Bump DI is input.

Remedy

1. Select a Bump schedule, go to the DETAIL screen, scroll to the bump offset and use BUMP_UP or BUMP_DN. 2. Turn TP off to use Bump DI input.

Related codes

BBOX-020No …s in the programBBOX-022Invalid bump scheduleBBOX-023Invalid Bump Group Input

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 →