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ABB Error 34268 — Rectifier / DC-link fault

Error

ABB 34268 (“Rectifier / DC-link fault”): DC link bus charging error. Likely part: Rectifier / DC link.

Updated 2026-10-22 · LogrobotLM reference

What it means

DC link bus charging error.

What to check

  • Check the mains voltage, three-phase wiring, rectifier and charging circuit; look for associated power supply faults in the Event Log.
  • Note: Power fault that may be related to the rectifier or the mains supply.

Part to check / replace

ABB 34268 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 →