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KUKA Error KSS15004 — Safe device (SIB/PROFIsafe)

Info

KUKA KSS15004 (“Safe device (SIB/PROFIsafe)”): “I/O error in safe device”: a safety participant (SIB, PROFIsafe/CIP Safety coupler) is reporting an I/O fault — module power supply, short circuit on a safe output, or defective module. Likely part: SIB (Safety Interface Board).

Updated 2026-09-09 · LogrobotLM reference

Cause

“I/O error in safe device”: a safety participant (SIB, PROFIsafe/CIP Safety coupler) is reporting an I/O fault — module power supply, short circuit on a safe output, or defective module.

Part to check / replace

KUKA KSS15004 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

KSS00126Servo drive (KSD/KSP) + mechanical drive train of the axisKSS00276Machine data vs hardware (RDC/EDS, disk)KSS00364Mode selector / 27 V power supply of the PC (KPC) / CIBKSS01146Motor / axis brake / servo drive

Same hardware involved

KSS15002SIBKSS15101SIB

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 →