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ABB Error 90203 — Enabling device (FlexPendant) fault

Error

ABB 90203 (“Enabling device (FlexPendant) fault”): Enabling device open: "Only one of the two enabling device chains has been opened." Discrepancy between the two channels of the three-position dead man's switch. Likely part: Gâchette de validation (FlexPendant) (Gâchette de validation (FlexPendant)).

Updated 2026-10-22 · LogrobotLM reference

What it means

Enabling device open: "Only one of the two enabling device chains has been opened." Discrepancy between the two channels of the three-position dead man's switch.

What to check

  • A single open channel indicates contact wear, not a normal release — a clean release opens both channels simultaneously.
  • Replace the enabling device or the FlexPendant if the fault recurs.
  • Check the FlexPendant cable and its connector.
  • Note: Direct precursor of manual jogging interruptions: in the field log, 90203 and 90213 occur in the same second, followed 10 minutes later by the Hpjts.c internal errors (jogvector timeout).

Part to check / replace

ABB 90203 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

90200Limit switch opened by SC90201Limit switch open90202Emergency stop open

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 →