LogrobotLM

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KUKA Error 1391 — COMPONENT ACCESS NOT ALLOWED

Error

Displayed as KSS01391 on KRC4 / KRC5 controllers

KUKA 1391 (“COMPONENT ACCESS NOT ALLOWED”): Prohibited access to a component of the main run/advance run (for example SHOW VAR $PRO_TRACE[5].NAME[2]).

Updated 2026-09-09 · LogrobotLM reference

Cause

Prohibited access to a component of the main run/advance run (for example SHOW VAR $PRO_TRACE[5].NAME[2]).

Effect

Stop via braking ramp. The command is not executed.

Related codes

1390CIRCLE ANGLE NOT TAKEN INTO ACCOUNT1392WRITE PROTECTION DUE TO PROCESS STATE1396LINKING NOT DONE1385PROTOCOL ERROR

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 →