What is meant by PF controller NR12 Error 1 and Error 2 ?
Errors 1 and 2 can show up due to incorrect wiring OR incorrect CT size. It seems the customer is having a problem sizing the CT connected to the regulator correctly. Customer has to re-check if the CT he has is suitable to the installation conditions that he's got or not. If it is undersized/oversized, it should be replaced by a more suitable CT. More info about Errors 1 and 2 can be shown in the attached Varlogic Error Code remedy table.