LogrobotLM

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FANUC Alarm MHND-129 — WARN Could not load file …

Manufacturer wording — WARN Could not load file %s
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC MHND-129 (“WARN Could not load file …”): Error occurred while loading a. First check: Cold start the controller and retry if you know you should be able to read the.vr file into M.H.

Updated 2026-09-17 · LogrobotLM reference

Description

Error occurred while loading a. VR file

Remedy

Cold start the controller and retry if you know you should be able to read the.vr file into M.H. Shell.

Related codes

MHND-127WARN IO_STATUS error occurredMHND-128WARN Could not save.VR file …MHND-130WARN Could not access filesMHND-133WARN Error using CLEAR built-in

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 →