| 摘要 |
PROBLEM TO BE SOLVED: To provide a multiple beam axis photoelectric sensor which can override the beam receiving signal from an optional beam receiving element for a predetermined time. SOLUTION: The multiple beam axis photoelectric sensor is provided with a beam emitter 1 equipped with two or more beam emitting elements 11a-11l and with a beam receiver 2 equipped with two and more beam receiving elements 21a-21l each of which constitutes a channel respectively in a pair with its counterpart in beam emitting elements 11a-11l, performing detection operation one by one for each channel based on whether or not the beam from each of emitting element 11a-11l is received by each of receiving element 21a-21l in the same channel. Optional channels among the two or more channels are designated by an external console 30 and also the designation is memorized to a memory 25A, therefore, a CPU 25 on the beam receiving side overrides, for only a predetermined period, beam receiving signals of the receiving elements 21a-21l consisting of the channels designated by the external console, based on the control signal which is input from an external control circuit through an input port 27. COPYRIGHT: (C)2004,JPO&NCIPI
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