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FANUC Alarm PRIO-125 — SYST SLC2 initialization error

FANUC PRIO-125 (“SYST SLC2 initialization error”): The SLC2 is in an error state at the end of initialization. First check: Check SYSFAIL of the other PCB.

Updated 2026-09-17 · LogrobotLM reference

Description

The SLC2 is in an error state at the end of initialization.

Remedy

Check SYSFAIL of the other PCB. Also check the main PCB.

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 →