ABB Error 90639 — Signal type does not match value type
ErrorABB 90639 (“Signal type does not match value type”): “Signal type does not match value type” is an ABB IRC5 event of major severity.
Updated 2026-10-23 · LogrobotLM reference
What it means
“Signal type does not match value type” 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 →