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FANUC Alarm APSH-155WARN HOME position not recorded

FANUC APSH-155 (“WARN HOME position not recorded”): The HOME position hasn't been recorded yet. First check: Go to the DATA menu, select Position Reg from the [TYPE] menu.

Updated 2026-08-29 · LogrobotLM reference

Description

The HOME position hasn't been recorded yet. The HOME position is contained in position register #1.

Remedy · Remède

Go to the DATA menu, select Position Reg from the [TYPE] menu. Jog the robot to the HOME position. Record PR[1]. UOP output 7 will be ON when the robot is at the HOME position.

Frequently asked · Questions fréquentes

What does FANUC alarm APSH-155 mean?
FANUC APSH-155 (“WARN HOME position not recorded”): The HOME position hasn't been recorded yet. The HOME position is contained in position register #1.
How do you troubleshoot FANUC alarm APSH-155?
Go to the DATA menu, select Position Reg from the [TYPE] menu. Jog the robot to the HOME position. Record PR[1]. UOP output 7 will be ON when the robot is at the HOME position.

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 →