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FANUC Alarm VARS-040 — WARN Cannot load at CONTROL START 2

FANUC VARS-040 (“WARN Cannot load at CONTROL START 2”): Variables may not be properly created if loaded at this time. First check: Load variables at COLD start or at CONTROLLED START 1 before save image operation.

Updated 2026-09-17 · LogrobotLM reference

Description

Variables may not be properly created if loaded at this time.

Remedy

Load variables at COLD start or at CONTROLLED START 1 before save image operation.

Related codes

VARS-038WARN Cannot change CMOS/DRAM typeVARS-039WARN Data set createdVARS-041WARN Invalid Node NumberVARS-042WARN TEMP type invalid for CMOS create

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 →