Technical Specifications

ValVueFF Software Interface to FVP
86
GE Energy
CAUTION Use the Time 2 failsafe only for a critical process that must be
forced into its failsafe position if the valve is unable to respond
to its position Set Point after a reasonable time delay. Do not
set the error band to a value that is too small. If Time 2 is used
it must be longer than the valve stroking time. A Time 2 value
that is too small results in a nuisance failsafe behavior.
Servo Alarms
Use this dialog (Figure 76) to configure the warning high and low thresholds and
maximum duration. Servo alarm parameters are for double acting only.
Figure 76 Alarms
Servo Warning High Enter the maximum as a percent of servo operational limit.
Servo Warning Low Enter the minimum as a percent of servo operational limit.
Servo Time (duration) Enter the maximum number of minutes per operation.
Servo Warning Count Displays the number of warnings issued for all three configurable
conditions.