LogrobotLM

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 →

ABB Error 50384 — Cartesian Soft Servo quaternions invalid

Error

ABB 50384 (“Cartesian Soft Servo quaternions invalid”): “Cartesian Soft Servo quaternions invalid” is an ABB IRC5 event of major severity.

Updated 2026-10-23 · LogrobotLM reference

What it means

“Cartesian Soft Servo quaternions invalid” is an ABB IRC5 event of major severity.

Related codes

10005Program stopped10007Program started10008Program restarted

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 →