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在 01-10-2019 12:10 AM
公司DC發電機測台使用PCI6259卡,目前校驗人員執行校驗程序時發現,在未輸入外接電壓時,校驗測試項目已顯示有電壓值(正常應0V),經檢測隔離拆除DAQ卡外接線路,銷驗測試項目仍存在電壓值,請問有何方式可測試DAQ卡好壞?是否提供檢查建議,謝謝!
已解決！ 轉到解決方案。
在 01-10-2019 09:31 PM
您好，請問顯示的電壓值是多少？
在未輸入外接電壓時，電壓值不一定為0V，如果要測試是否正常，先輸入指定電壓，再看顯示的電壓值是否正確。假設想讀取0V值，可以考慮把AI接AI GND。
在 01-10-2019 11:14 PM
感謝回應,不管外加電壓多少V,顯示電壓值無變化,後來上NI官網(http://www.ni.com/download/daq-diagnostic-utility-2.1/2244/en/)下載DAQ測試軟體(DAQ Diagnostic Utility 2.1 )測試結果是類比輸出故障,與測台故障情況相符,確認DAQ卡故障,謝謝!
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