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FANUC Alarm TOOL-012Tool mastering data is lost.

FANUC TOOL-012 (“Tool mastering data is lost.”): Mastering data of a servo tool was lost because of an unexpected stop during mastering of the tool. First check: 1. The tool pulse values and mastering data are lost.

Updated 2026-08-29 · LogrobotLM reference

Description

Mastering data of a servo tool was lost because of an unexpected stop during mastering of the tool.

Remedy · Remède

1. The tool pulse values and mastering data are lost. So, first move the tool by manual feed to cancel the "SRVO-075 Pulse not established" alarm. This alarm may not be occurring. If so, skip this step and proceed to the next step. 2. Next, carry out tool 0 position mastering and calibration manually.

Frequently asked · Questions fréquentes

What does FANUC alarm TOOL-012 mean?
FANUC TOOL-012 (“Tool mastering data is lost.”): Mastering data of a servo tool was lost because of an unexpected stop during mastering of the tool.
How do you troubleshoot FANUC alarm TOOL-012?
1. The tool pulse values and mastering data are lost. So, first move the tool by manual feed to cancel the "SRVO-075 Pulse not established" alarm. This alarm may not be occurring. If so, skip this step and proceed to the next step. 2. Next, carry out tool 0 position mastering and calibration manually.

Related codes / Codes liés

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. · Informations indicatives issues du terrain — le manuel du constructeur et ses procédures de sécurité font foi. Ne shuntez jamais un organe de sécurité ; consignez (LOTO) avant toute intervention physique. How this reference is built →