Safety multi-optical axis photoelectric sensor
US7696469B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 23, 2008 |
| Grant date | Apr 13, 2010 |
| Priority date | — |
| Expiry date | May 11, 2028 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16P3/144
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention can be used in a multi-optical axis photoelectric sensor indicating an operating status thereof to a non-safety control device. The present invention allows the multi-optical axis photoelectric sensor so as to become a easier operation. The multi-optical axis photoelectric sensor has a control unit to providing a safety control signal representing a result of a distinguish portion in a normal operating status, a safety control signal representing operation non-allowable in an abnormal status and a safety control signal representing operation allowable in a special operating status. The multi-optical axis photoelectric sensor also has an operating status indication portion for determining an operating status of the multi-optical axis photoelectric sensor from the normal operating status, the abnormal status and the special operating status, and providing the operating status to an external device via the same output line regardless of the result of the determination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.