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KUKA Error KSS15101 — SIB safe inputs / X11 wiring

Info

KUKA KSS15101 (“SIB safe inputs / X11 wiring”): “Error at safety device input”: a safety peripheral input is inconsistent — the two channels of a dual-channel input do not switch together (incomplete X11 wiring, worn contact, SIB fuse, smartPAD cable). Likely part: SIB (Safety Interface Board) +1 more.

Updated 2026-09-09 · LogrobotLM reference

Cause

“Error at safety device input”: a safety peripheral input is inconsistent — the two channels of a dual-channel input do not switch together (incomplete X11 wiring, worn contact, SIB fuse, smartPAD cable).

Part to check / replace

KUKA KSS15101 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

KSS15002SIBKSS15004SIBKSS01362smartPADKSS15014smartPAD

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 →