ABB Error 71557 — Signal transfer was defined but no internal device was found

ABB 71557 (“Signal transfer was defined but no internal device was found”): “Signal transfer was defined but no internal device was found” is an ABB IRC5 event of major severity.

Updated 2026-10-23 · 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 →