Background:
GE Frame 7EA DLN 1+ with Mark V turbine controller and Cimplicity HMI.
Problem Description:
I have had a dew point sensor fail. The ITDP (dew point temperature) signal has dropped below the -76 degF constant which has caused the alarm DEW POINT SENSOR TROUBLE.
The ITDP signal inputs into a HUMIDV1 Humidity Calculation Big Block. The outputs from the HUMIDV1 block are RHUM (Relative Humidity) and CMHUM (Specific Humidity). These signals are NOT utilized anywhere else in the CSP (Control Sequence Program) of the Mark V turbine controller.
Question:
Since the signals RHUM and CMHUM are NOT utilized in the CSP, I am not concerned about how they will effect turbine operation. I have disabled the process alarm.
HOWEVER I am a curious_one, Has anyone ever seen the above listed signals utilized in some fashion?
GE Frame 7EA DLN 1+ with Mark V turbine controller and Cimplicity HMI.
Problem Description:
I have had a dew point sensor fail. The ITDP (dew point temperature) signal has dropped below the -76 degF constant which has caused the alarm DEW POINT SENSOR TROUBLE.
The ITDP signal inputs into a HUMIDV1 Humidity Calculation Big Block. The outputs from the HUMIDV1 block are RHUM (Relative Humidity) and CMHUM (Specific Humidity). These signals are NOT utilized anywhere else in the CSP (Control Sequence Program) of the Mark V turbine controller.
Question:
Since the signals RHUM and CMHUM are NOT utilized in the CSP, I am not concerned about how they will effect turbine operation. I have disabled the process alarm.
HOWEVER I am a curious_one, Has anyone ever seen the above listed signals utilized in some fashion?