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ABB Error 34408 — Power drive unit fault

Error

ABB 34408 (“Power drive unit fault”): Corrupted internal physical configuration data stored in the drive unit (servo drive). Likely part: Power drive unit (Power drive unit).

Updated 2026-10-22 · LogrobotLM reference

What it means

Corrupted internal physical configuration data stored in the drive unit (servo drive).

What to check

  • Restart using the cabinet main switch.
  • Replace the affected axis drive unit.
  • Note: Internal drive EEPROM fault, requiring replacement of the axis hardware.

Part to check / replace

ABB 34408 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

34100Drive system fault34200Axis Computer / Drive Units fault34201Drive Unit fault

Same hardware involved

39415Power drive unit39416Power drive unit

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 →