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FANUC Alarm PNT2-387 — %sMaster program is undefined

FANUC PNT2-387 (“%sMaster program is undefined”): The robot master program is not taught. First check: Teach the robot master program (MASTER.TP).

Updated 2026-08-29 · LogrobotLM reference

Description

The robot master program is not taught.

Remedy · Remède

Teach the robot master program (MASTER.TP).

Frequently asked · Questions fréquentes

What does FANUC alarm PNT2-387 mean?
FANUC PNT2-387 (“%sMaster program is undefined”): The robot master program is not taught.
How do you troubleshoot FANUC alarm PNT2-387?
Teach the robot master program (MASTER.TP).

Related codes / Codes liés

PNT2-385%sBypass program is undefinedPNT2-386%sPurge program is undefinedPNT2-388%sSpecial 1 program is undefinedPNT2-389%sSpecial 2 program is undefined

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 →