| 摘要 |
PROBLEM TO BE SOLVED: To provide a power reception device, power supply system and power supply device that can avoid interruption of power to power reception devices while changing over power supply routes from occurrence of abnormality, and allow simpler wiring to alleviate loads for wiring installation.SOLUTION: A power reception device according to the present invention comprises, in power reception devices receiving a power supply from any of a plurality of communication cables: a plurality of power reception check means that stores power on the basis of a power supply from the communication cable, and checks a power supply value from the communication cable, in which the power reception check means is provided for each communication cable; power sum supply means that supplies a power sum from the plurality of power reception check means; and power interruption notification means that, when abnormality is detected by the power reception check means of the communication cable to which the power is supplied, notifies a power supply source of a power interruption notice signal.SELECTED DRAWING: Figure 1 |
