| 摘要 |
PROBLEM TO BE SOLVED: To provide a failure detection unit capable of detecting and outputting kinds types of failures such as a temperature failure and an insufficient voltage in a power supply unit. SOLUTION: Power supply units 1 to 3 and the failure detection units 4 are connected with DC output side connectors 17B-1, 17B-2 and DC input side connectors 23A-1, 23A-2. A DC bus line for the failure detection unit 4 is connected to the power supply units 1 to 3 with a fingertip operation to detect output current through a detection resistor 26. An ambient temperature is detected with a temperature sensor 35 and temperature abnormality is detected for outputting based on a delating curve. COPYRIGHT: (C)2004,JPO
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