Technical Specifications

ValVueFF Software Interface to FVP
174
GE Energy
Failsafe Clear Latched
The Fail Safe Status window is updated with the Failsafe Clear Latched condition
(Figure 158), when the active condition is cleared. The Clear Latch button is enabled to
clear the latch. If the positioner is not in out of service (OOS) operation state, required for
clearing the latched state, you are prompted to switch to OOS state.
Figure 158 Clear Latch
Failsafe Clear Non-Latch
The Fail Safe Status window is updated to the Failsafe Clear Non-Latch condition when
the latch is cleared.
Figure 159 Clear Non-Latch
Exiting Failsafe
Failsafe cannot be cleared until the original cause is corrected. See “Error Messages” on
page 207 for additional information about fault correction. After the problem cause is
corrected, the Failsafe dialog box shows Clear, Latched. Select the Clear Latch button
and select Close on the Clear, Non-Latch button.
Certain combinations of configuration parameters can complicate exiting failsafe.
Typically non-standard travel calibration coupled with tight shutoff, full open, and or
position limits may need to be cleared before exiting failsafe. If the Time 2 (T2) Deviation
parameters are set, the following four cases might be found for failsafe. Follow the steps
in Table 12 and Table 13 to exit failsafe for these cases.