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FANUC Alarm IBSS-476 — newmem … failed

Manufacturer wording — newmem %d failed
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC IBSS-476 (“newmem … failed”): System internal error First check: Document the events that led to the error, and call your FANUC or FANUC Robotics technical service representative.

Updated 2026-09-17 · LogrobotLM reference

Description

System internal error

Remedy

Document the events that led to the error, and call your FANUC or FANUC Robotics technical service representative.

Related codes

IBSS-474"Use CMD" setting mismatchIBSS-475PCI board not installedIBSS-477mktsk … failed …IBSS-478Slave Parameterization invalid

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 →