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ABB Error 112428 — WDU RAM battery fault

Error

ABB 112428 (“WDU RAM battery fault”): Loss of voltage of the RAM backup battery of the WDU data unit. Likely part: WDU RAM battery (WDU RAM battery).

Updated 2026-10-22 · LogrobotLM reference

What it means

Loss of voltage of the RAM backup battery of the WDU data unit.

What to check

  • Switch off the cabinet and replace the WDU backup battery.
  • Note: Similar to axis cabinet battery failures.

Part to check / replace

ABB 112428 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

110704Battery Weldtimer fault110711Cable Capteur fault110712Power cables fault

Same hardware involved

111873WDU RAM battery

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 →