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ABB Error 32540 — Drive unit / firmware fault

Warning

ABB 32540 (“Drive unit / firmware fault”): Drive unit firmware update start: "In drive module 1, a requested firmware update of the drive unit at position 0 has started." Likely part: Variateur / Micrologiciel (drive unit / firmware).

Updated 2026-10-22 · LogrobotLM reference

What it means

Drive unit firmware update start: "In drive module 1, a requested firmware update of the drive unit at position 0 has started."

What to check

  • Do not switch off the power during the sequence: an interrupted drive unit firmware update can render the unit unusable.
  • Check that a 32541 (update complete) does follow within the next few minutes.
  • If there is no 32541, restart the procedure before any return to production.
  • Note: Information message, but its presence precisely dates a service intervention: useful for distinguishing a fault that appeared before maintenance from one that appeared after. In the field log, update on 2025-08-20 at 15:57:30, completed at 15:58:15, i.e. 45 seconds.

Part to check / replace

ABB 32540 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

32541Drive unit / firmware fault39008Drive units fault39009Drive units fault

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 →