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FANUC Alarm ACAL-085 — UFrame is too small

FANUC ACAL-085 (“UFrame is too small”): The specified UFrame is zero or small, and Calibrate UFrame is disabled. First check: Set UFrame to be the precision calibration fixture location or enable UFrame calibration in the calibration schedule.

Updated 2026-09-17 · LogrobotLM reference

Description

The specified UFrame is zero or small, and Calibrate UFrame is disabled.

Remedy

Set UFrame to be the precision calibration fixture location or enable UFrame calibration in the calibration schedule.

Related codes

ACAL-083Invalid TPE instruction.ACAL-084Failed to access Karel vars.ACAL-086UTool is too smallACAL-087Joint rotation is small

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 →