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ABB Error 90668 — Emergency Stop Status input could not be tested

Error

ABB 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 →