Fault (device stops or needs intervention)

The message reports a condition on which the device stops or needs someone to intervene. Vendor words that read as this class: Chint Protection and Fault, Yaskawa Solectria Critical, SMA events that interrupt feed-in.

Reading rule: classify by what the row says the device does, not by the vendor's word. The vendor's word is kept as written in the code's vendor_severity; this concept only says the message is a fault rather than a warning or a status.