LogrobotLM

LogrobotLM — AI fault diagnosis for ABB · KUKA · FANUC robots. It reads your robot backup in your browser (never uploaded) and pinpoints the fault. Try it free →

ABB Error 20032 — Revolution counter not updated

Warning

ABB 20032 (“Revolution counter not updated”): The revolution counter of one or more axes is invalid — after battery discharge, SMB replacement or measurement cable disconnection. Likely part: Compteurs de tours / Batterie SMB (revolution counter / battery SMB).

Updated 2026-09-17 · LogrobotLM reference

What it means

The revolution counter of one or more axes is invalid — after battery discharge, SMB replacement or measurement cable disconnection. Fine positioning is lost until counters are updated.

What to check

  • Update revolution counters at the calibration marks (per axis).
  • If it recurs: measure the SMB backup battery and inspect the measurement cabling.
  • Recurring together with SMB communication faults → the measurement link is the suspect.

Part to check / replace

ABB 20032 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

38101SMB communication failure50296SMB memory / data mismatch20030Axis not commutated

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 →