One of our MarkV’s is getting intermittent voter mismatch alarms for <T> FPRG_INT.
Has anyone had this before? What was the solution?
I can see FPRG_INT in the ladder logic rungs. It is described as an "orphan signal" with no clue where it comes from or how it is calculated.
It appears to be involved in causing the SRV to maintain a constant interstage (P2) pressure so the GCV opening will provide the correct volume of gas to the turbine.
Maybe someone out there can provide a discussion about it? Any troubleshooting advice?
Has anyone had this before? What was the solution?
I can see FPRG_INT in the ladder logic rungs. It is described as an "orphan signal" with no clue where it comes from or how it is calculated.
It appears to be involved in causing the SRV to maintain a constant interstage (P2) pressure so the GCV opening will provide the correct volume of gas to the turbine.
Maybe someone out there can provide a discussion about it? Any troubleshooting advice?