GE Baker Hughes Masoneilan SVI FF Installation And Operation Manual page 238

Mins and Maxs
A set of parameters are provided in the Transducer block to register the maximum and
minimum value of most dynamic parameters. The extreme values are cleared if the valve is
rebooted. Table 35 though Table 38 provides the values being monitored in various areas.
NOTE
114-POSITION_EXTREMES
1 FINAL_VALUE_MAX
2 FINAL_VALUE_MIN
FINAL_POS_VALUE_MAX*
3
FINAL_POS_VALUE_MIN*
4
5 WORKING_SP_MAX
6 WORKING_SP_MIN
7 WORKING_POS_MAX
8 WORKING_POS_MIN
* These two values are useful in determining calibration error: Whether or not the valve is
operating at near 105% or near -5%.
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BHGE
The items in these tables can be used as constructive guidelines
for alert configuration.
Table 35 Valve Position Values Monitored
Max value of Position Setpoint
Min value of Position Setpoint
Max value of Actual Position: Represents a possible calibration issue
if the position is above 100% when the valve is fully open.
Min value of Actual Position: Represents a possible calibration issue if
the position is below 0% when the valve is fully closed.
Max value of Characterized Position Setpoint
Min value of Characterized Position Setpoint
Max value of Characterized Actual Position
Min value of Characterized Actual Position
DESCRIPTION
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