ABB Error 90621 — Signal width invalid in device mapping
ErrorABB 90621 (“Signal width invalid in device mapping”): “Signal width invalid in device mapping” is an ABB IRC5 event of major severity.
Updated 2026-10-23 · LogrobotLM reference
What it means
“Signal width invalid in device mapping” 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 →