LogrobotLM

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FANUC Alarm ACAL-020 — Invalid Frame number.

FANUC ACAL-020 (“Invalid Frame number.”): The current frame number setting is invalid. First check: Use the SETUP/FRAME menu to set up the correct frame.

Updated 2026-09-17 · LogrobotLM reference

Description

The current frame number setting is invalid.

Remedy

Use the SETUP/FRAME menu to set up the correct frame.

Related codes

ACAL-018Nonorthogonal search vectorACAL-019Positions are too close.ACAL-021Large Frame deviation.ACAL-022Detect without mastering

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 →