← Knowledge base · seed/05-safety.md

Safety scanner and protective stops

The QL-200 uses a certified safety laser scanner with configurable protective and warning fields. A protective stop (E-SAF-001) is the safety system working as designed.

Expected stops

In mixed traffic areas with pickers and forklifts, 1 to 3 protective stops per robot per hour are normal. Each stop that clears within 10 seconds needs no action.

When to investigate

• Stops that do not clear or repeat in the same empty location (ghost obstacles: reflective tape, sunlight, misaligned scanner).

• A sudden increase in stops after a layout change: review field sizes for that route.

• Never disable or shrink protective fields to reduce stops without a safety assessment.