PoSe Stats in syscoin-cli masternode_status

Can someone please explain the following metrics that are shown in the syscoin-cli masternode_status output

"PoSePenalty": 0,
"PoSeRevivedHeight": 1095260,
"PoSeBanHeight": -1,

If anyone has more info on what the PoSe_Banned state is, and specifically how it works. I already know how to unban a node, I would like to know more about how a node gets banned in the first place. I want to set up some monitoring and metrics on it, so I can alert that there is a problem early, but I don’t really understand the mechanism.