Additional Information
If one of these cards detects that the remote sense terminals are improperly connected, it will shut down the output and enter into an error state. Commonly, when this error occurs, the improper connection involves reversing the polarity of the sense terminals, shorting the sense leads together, or having a loose connection of the local sense HI or LO.
These cards monitor the voltage differential between HI and HI SENSE, and will generate the error if the voltage surpasses the specified maximum of 3 V between the two lines. The voltage differential between LO and LO SENSE is monitored in the same way.