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ABB Error 20253 — External device temperature high DRV1

Error

ABB 20253 (“External device temperature high DRV1”): External device temperature high DRV1: the temperature supervision of the DRV1 external axis channel reports overheating. Likely part: Axe externe / Sonde thermique DRV1 (axis external / thermal sensor DRV1).

Updated 2026-10-22 · LogrobotLM reference

What it means

External device temperature high DRV1: the temperature supervision of the DRV1 external axis channel reports overheating. Also triggers when no external equipment is connected.

What to check

  • Check the presence and condition of the termination plug on the external axis connector (a missing termination simulates an open sensor).
  • Measure the external axis PTC chain.
  • Check the cabinet ventilation and ambient temperature.
  • Note: Same thermal supervision logic as 39467 (drive unit) but on the external equipment side.

Part to check / replace

ABB 20253 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

20252Motor / Thermal sensor / Temperature cable fault37001Motor ON contactor activation error37003Power supply logique fault

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 →