KUKA Error 1552 — CHANNEL ALREADY OPEN

Displayed as KSS01552 on KRC4 / KRC5 controllers

KUKA 1552 (“CHANNEL ALREADY OPEN”): An attempt was made to open a channel that is already open.

Updated 2026-09-09 · LogrobotLM reference

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 →