ABB Error 39418 — Drive Unit fault
ErrorABB 39418 (“Drive Unit fault”): Drive Unit type code unknown to the system. Likely part: Drive Unit (Drive Unit).
Updated 2026-10-22 · LogrobotLM reference
What it means
Drive Unit type code unknown to the system.
What to check
- Check the connection and identity of the Drive Unit and its compatibility with the configuration, and replace the hardware if necessary.
- Note: Drive Unit hardware identification fault; useful after a module replacement.
Part to check / replace
ABB 39418 points to the hardware below — start here before ordering.
Tap a part for every code that points to it — and verify the exact variant for your controller before ordering.
Related codes
Same hardware involved
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 →