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 →

KUKA Error 2320 — SIGNAL NAME MUST NOT BE MODIFIED

Displayed as KSS02320 on KRC4 / KRC5 controllers

KUKA 2320 (“SIGNAL NAME MUST NOT BE MODIFIED”): The signal name was modified in an impermissible way. First check: Modify the program accordingly.

Updated 2026-09-09 · LogrobotLM reference

Cause

The signal name was modified in an impermissible way.

Effect

The program cannot be executed.

Troubleshooting

Modify the program accordingly.

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 →