NI 9476 Module Reads 8 V When in Off State Using 24 V Power Supply with No Load Hardware: CompactRIO>>Digital Output Modules>>NI 9476
Problem: I have connected a 24 V Power Supply to my NI 9476 DO module. With no load connected, I measure the Off state to be 8 V instead of the expected 0 V. Is this normal? Solution: This is normal. The NI 9476 uses an IC chip that allows it to work with higher voltages. This IC chip causes the module to read 8 V when no load is connected. In order to read 0 V you need to connect a load, as described in page 7 of the NI 9476 Operating Instructions manual. This load will provide the reference to common so that you can read 0 V in the Off state. Related Links: Product Manuals: NI 9476 Operating Instructions and Specifications Attachments:
Report Date: 05/08/2006 Last Updated: 09/22/2008 Document ID: 3X7AK5TQ |
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