5/12/2017
TECH-538/D.W.O. 23160
Page 86 of 189
Manual Override of Input Signal using the EDD interface (Manual Stroke)
Similarly to the functions available in the local display menu (Section 8.9), the EDD menus implemented for the
ICoT provide the following three stroking type:
1.
Final Value
(
Adjs
in local display menu) - Adjustment of positioner to any position between 0 and 100%
2.
Final Value Hi Cutoff
(
OP
in local display menu)
– Open: Sets the Valve to the Full Open Position when the SP is equal or greater than the cutoff value.
3.
Final Value Lo Cutoff
(
CLs
in local display menu)
– Close: Sets the Valve to the Full Closed Position when the SP is equal or lower than the cutoff value.
These functions override the FF setpoint control signal.
Description of Functions
The Valve
Stroke
functions available in the EDD menus parameters are described below:
Final Value
Path:
“Process Variables Root Menu” -> “1- Position Display”
Figure 8-40 – Final Value function
This function allows for the adjustment of the positioner to any position.
The final value can only be modified when the transducer block mode is Manual mode.
