LogrobotLM — AI fault diagnosis for ABB · KUKA · FANUC robots. It reads your robot backup in your browser (never uploaded) and pinpoints the fault. Try it free →

FANUC Alarm PAIN-602 — ABRT Bad Status from set_prax_spd

FANUC PAIN-602 (“ABRT Bad Status from set_prax_spd”): An attempt was made to move the ServoBell or the SpeedDock and a bad status from First check: Check that no ISDT alarms occurred before this alarm.

Updated 2026-09-17 · LogrobotLM reference

Description

An attempt was made to move the ServoBell or the SpeedDock and a bad status from

Remedy

Check that no ISDT alarms occurred before this alarm. Typically this occurs when a hardware failure has occurred on the ServoBell or SpeedDock motor or amplifier. Also make sure that the ServoBell and SpeedDock are both calibrated.

Related codes

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 →