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FANUC Alarm TOOL-021 — PR[] index is not set.

FANUC TOOL-021 (“PR[] index is not set.”): For the calibration motion type 3 to 6, no position register number is set. First check: Set the position register number on the Tool Change SETUP screen.

Updated 2026-09-17 · LogrobotLM reference

Description

For the calibration motion type 3 to 6, no position register number is set.

Remedy

Set the position register number on the Tool Change SETUP screen.

Related codes

TOOL-019Another tool is attached.TOOL-020Calibrate motion is failed.TOOL-022Touch torque is not set.TOOL-023Detect signal is not set.

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 →