71
Type 8692, 8693
english
Start-up, operation
position controller Type 8692
4.3.2 CUTOFF
Sealing function for the position controller Type 8692
The sealing function for the process controller Type 8693 can be found in the chapter entitled "Start-up, operation of
the process controller Type 8693" - "Auxiliary functions for the process controller".
This function causes the valve to be sealed outside the control area.
This is where you input the limits for the position set-point value (CMD) as a percentage, from which the actuator is fully de-
aerated or aerated.
Control mode opens or resumes at a hysteresis of 1 %.
If the process valve is in the sealing area, the message "CUTOFF ACTIVE" is indicated on the display.
Factory setting: Min= 0 %; Max = 100 %
CUTOFF
Min 0 %
Max 100 %
EXIT
ENTER
INPUT
+
-
Min 0 %
OK
INPUT
+
-
Max 100 %
OK
*
*
Sealing threshold
Deaeration
Adjustment range:
0 ... 25 %
(0 = not active)
Sealing threshold
Aeration
Adjustment range:
75 ... 100 %
(100 = not active)
Fig. 15: Operating structure CUTOFF
Changed values are not transferred into the memory (EEPROM) until the main menu (MAIN) is left.
Valve stroke [%]
(POS)
Adjustable from 75 – 100 %
Set-point value [%]
(CMD)
Adjustable from 0 – 25 %
Fig. 16: Graph - CUTOFF
* If the sub-menu is left by pressing the selection key on the left (ESC), the value remains unchanged.
To Next Page
Loading...
