If a fault is detected by the PQconnect board, what response is taken by the board?

For some faults, the tuned circuit contractor can be configured to open on a fault condition, specifically for tuned circuit line reactor overloads.

In other circumstances, the fault detection is informational only such as the line reactor overload. In the case of a line reactor overload opening the tuned circuit contactor can make the overload worse as it forces harmonics flowing into the tuned circuit to instead flow through the line reactor.