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FANUC Alarm APSH-169 — WARN Uninitialized Stud Macros

FANUC APSH-169 (“WARN Uninitialized Stud Macros”): A macro program to dropoff or pickup studgun 1 or 2 has not been initialized. First check: Proceed to Spot Equipment Menu under MENUS-SETUP and initialize the studwelding macros which will only appear if STUD BACKUP is ENABLED at CONTROLLED START.

Updated 2026-09-17 · LogrobotLM reference

Description

A macro program to dropoff or pickup studgun 1 or 2 has not been initialized.

Remedy

Proceed to Spot Equipment Menu under MENUS-SETUP and initialize the studwelding macros which will only appear if STUD BACKUP is ENABLED at CONTROLLED START.

Related codes

APSH-167WARN Move robot home & cycle startAPSH-168WARN No GO for EQP pressureAPSH-170WARN Check Nest/Changer InputsAPSH-171HOME_IO has not completed running

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 →