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FANUC Alarm CVIS-139 — Cannot delete this tool.

FANUC CVIS-139 (“Cannot delete this tool.”): The specified tool cannot be deleted from the tree window. First check: Some programs have been designed to prevent the number of command tools from being set below a predetermined number.

Updated 2026-09-17 · LogrobotLM reference

Description

The specified tool cannot be deleted from the tree window.

Remedy

Some programs have been designed to prevent the number of command tools from being set below a predetermined number. Before trying to delete the specified tool, create another one.

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 →