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FANUC Alarm FILE-003 — WARN Device is protected

Warning
Hardware
storage media
Controllers
R-J3iB / R-30iA
FANUC class
WARN
Hardware family
FANUC storage media alarms: memory card, USB, F-ROM and corrupted data

FANUC FILE-003 (“WARN Device is protected”): Device is protected. First check: Release the device protection.

Updated 2026-10-22 · LogrobotLM reference

Description

Device is protected. So, you cannot write to the device.

Remedy

Release the device protection.

Field diagnosis

The device is protected: writing is impossible.

What to check

  • Remove the protection (card switch or attribute).
  • Note: SRAM cards with a protection switch.

Related codes

FILE-001WARN Device not readyFILE-035WARN Device not formattedFILE-002WARN Device is FullFILE-004WARN Device not assignedFILE-005WARN Device not mounted

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 →