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ABB Error 34252 — Incoming mains missing

Error

ABB 34252 (“Incoming mains missing”): Incoming mains missing: in the drive module, the rectifier in the indicated position detects a loss of the mains voltage. Likely part: Redresseur / Alimentation triphasée (rectifier / power supply three-phase).

Updated 2026-10-22 · LogrobotLM reference

What it means

Incoming mains missing: in the drive module, the rectifier in the indicated position detects a loss of the mains voltage. The system goes to Motors OFF.

What to check

  • Measure the incoming mains voltage.
  • Check all the internal three-phase components of the drive module: main switch, mains filter, fuses, contactors, and the associated wiring.
  • Replace the rectifier if it is faulty.
  • Note: Direct successor of “589 REDRESSEUR ABSENT” and “592 TENSION REDRESSEUR” of the S2/S3 racks.

Part to check / replace

ABB 34252 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

34251Redresseur / Alimentation triphasée

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 →