ABB Error 50478 — Could not deactivate lead-through
ErrorABB 50478 (“Could not deactivate lead-through”): “Could not deactivate lead-through” is an ABB IRC5 event of major severity.
Updated 2026-10-23 · LogrobotLM reference
What it means
“Could not deactivate lead-through” 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 →