ABB Error 34202 — Axis Computer / Drive Unit fault
ErrorABB 34202 (“Axis Computer / Drive Unit fault”): Loss of communication between the Axis Computer and a given Drive Unit. Likely part: Axis Computer / Drive Unit (Axis Computer / Drive Unit).
Updated 2026-10-22 · LogrobotLM reference
What it means
Loss of communication between the Axis Computer and a given Drive Unit.
What to check
- Check the Ethernet cable/link, the logic power supply of the Drive Unit, the connectors, the 24 V power supply and the associated power supply messages.
- Note: Functionally very close to 39415/39416, but a different event family depending on the architecture/RW.
Part to check / replace
ABB 34202 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 →