| 摘要 |
PROBLEM TO BE SOLVED: To provide a multiple optical-axis photoelectric sensor capable of easily confirming results of a countermeasure implemented against interference light. SOLUTION: The multiple optical-axis photoelectric sensor has a normal operation mode, and a test mode. In the normal operation mode, a light-receiving control circuit 45 performs an interference light detection action on the basis of an interference light determination standard established as a normal standard. In the test mode, the light-receiving control circuit 45 performs an interference light detection action on the basis of an interference light determination standard established at a low standard lower than the normal standard. COPYRIGHT: (C)2009,JPO&INPIT
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