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ABB Error 20206 — General stop open

Error

ABB 20206 (“General stop open”): General stop open: the General Stop circuit of the hardwired safety chain is open. Likely part: General Stop chain (GS1 / GS2) / terminals X5-X6.

Updated 2026-10-22 · LogrobotLM reference

What it means

General stop open: the General Stop circuit of the hardwired safety chain is open. The GS1 and GS2 safety signals are at 0.

What to check

  • Open the safety signals view (system I/O) and read the state of GS1 and GS2.
  • Check the connection of the General Stop inputs on terminal blocks X5 and X6 of the Panel Board.
  • Identify the open device in the loop (gate, barrier, cell isolator switch).
  • Check the consistency of the two redundant channels.
  • Note: Hardwired counterpart of 90206 reported by the Safety Controller. A single open channel gives 20223 (two channel fault) and not 20206.

Part to check / replace

ABB 20206 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

20223Emergency stop conflict20313IOC EN supervision fault20314AXC EN supervision 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 →