AI845 1 to 5V Signal

In our site, AI845 card is configured for 1 -5V signals. In this card, when an IO channel terminal is opened, the channel does not show “underflow” immediately.

Instead of that, the channel value drops slowly.

a.It took more than 90 seconds to show “underflow” after the channel terminals are open, if voltmeter is connected across the channel terminal.

b. It took more than 10 minutes for the channel value to drop from 19 to 15 (Signal Range: 1-5V -> 0 to 40), if no voltmeter is connected across the channel terminal.

Anyone have faced similar issue?

Regards,

Santhanam


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Santhanam   

asked 2 months ago
Closed



Answers

0

Did you tried to disconnect the variable from the channel and look Online what happen to channel value when disconnect the input signal?

What TU is used?

What setting do you have for "Shunt mode" - external or internal? Filter Time?

Sounds like you don't have a shunt.

kstoilov   

answered 2 months ago


 


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