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FANUC Alarm ACAL-052 — iRCal. Master is not loaded.

FANUC ACAL-052 (“iRCal. Master is not loaded.”): Robot Cal is not loaded. First check: Perform a Controlled start, and load the Robot Cal software from the OPTION menu.

Updated 2026-09-17 · LogrobotLM reference

Description

Robot Cal is not loaded. The robot tried to run the robot Calibration instruction without the Robot Cal software.

Remedy

Perform a Controlled start, and load the Robot Cal software from the OPTION menu.

Related codes

ACAL-050iRCal. TCP is not loaded.ACAL-051iRCal. Frame is not loaded.ACAL-053No calibration software.ACAL-054Invalid Calibration program.

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 →