LogrobotLM — AI fault diagnosis for ABB · KUKA · FANUC robots. It reads your robot backup in your browser (never uploaded) and pinpoints the fault. Try it free →

FANUC Alarm PALT-138 — WARN Only Pal OR Cycle stop allowed

FANUC PALT-138 (“WARN Only Pal OR Cycle stop allowed”): Pallet stop or cycle stop is already on. First check: Disable one before trying to enable the other.

Updated 2026-09-17 · LogrobotLM reference

Description

Pallet stop or cycle stop is already on. You can only have either cycle stop or pallet stop on. Not both.

Remedy

Disable one before trying to enable the other.

Related codes

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 →