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FANUC Alarm SEAL-152 — WARN I/O not correctly assigned

FANUC SEAL-152 (“WARN I/O not correctly assigned”): The index value or type of this I/O port is incorrectly assigned. First check: If you wish to use this I/O port, set the port index and I/O type to the correct values.

Updated 2026-09-17 · LogrobotLM reference

Description

The index value or type of this I/O port is incorrectly assigned.

Remedy

If you wish to use this I/O port, set the port index and I/O type to the correct values. Verify that a valid value is shown on the I/O menu for this I/O port instead of If you do not wish to use this I/O point, set the index number to zero.

Related codes

SEAL-150ABORT Equipment is already busySEAL-151ABORT TPP not created correctlySEAL-153WARN Program is runningSEAL-154WARN

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 →