ABB Error 90668 — Emergency Stop Status input could not be tested
ErrorABB 90668 (“Emergency Stop Status input could not be tested”): “Emergency Stop Status input could not be tested” is an ABB IRC5 event of major severity.
Updated 2026-10-23 · LogrobotLM reference
What it means
“Emergency Stop Status input could not be tested” is an ABB IRC5 event of major severity.
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 →